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The Bell Boeing V-22 Osprey is an American multi-mission,
tiltrotor A tiltrotor is an aircraft which generates lift and propulsion by way of one or more powered rotors (sometimes called ''proprotors'') mounted on rotating shafts or nacelles usually at the ends of a fixed wing. Almost all tiltrotors use a trans ...
military aircraft A military aircraft is any fixed-wing or rotary-wing aircraft that is operated by a legal or insurrectionary armed service of any type. Military aircraft can be either combat or non-combat: * Combat aircraft are designed to destroy enemy equipm ...
with both vertical takeoff and landing (
VTOL A vertical take-off and landing (VTOL) aircraft is one that can take off and land vertically without relying on a runway. This classification can include a variety of types of aircraft including helicopters as well as thrust-vectoring fixed-win ...
) and short takeoff and landing (
STOL A short takeoff and landing (STOL) aircraft is a conventional fixed-wing aircraft that has short runway requirements for takeoff and landing. Many STOL-designed aircraft also feature various arrangements for use on airstrips with harsh conditio ...
) capabilities. It is designed to combine the functionality of a conventional
helicopter A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning rotors. This allows the helicopter to take off and land vertically, to hover, and to fly forward, backward and laterally. These attributes ...
with the long-range, high-speed cruise performance of a
turboprop A turboprop is a turbine engine that drives an aircraft propeller. A turboprop consists of an intake, reduction gearbox, compressor, combustor, turbine, and a propelling nozzle. Air enters the intake and is compressed by the compressor. Fuel ...
aircraft. In 1980, the failure of
Operation Eagle Claw Operation Eagle Claw, known as Operation Tabas ( fa, عملیات طبس) in Iran, was a failed operation by the United States Armed Forces ordered by U.S. President Jimmy Carter to attempt the rescue of 52 embassy staff held captive at th ...
(during the
Iran hostage crisis On November 4, 1979, 52 United States diplomats and citizens were held hostage after a group of militarized Iranian college students belonging to the Muslim Student Followers of the Imam's Line, who supported the Iranian Revolution, took over ...
) underscored that there were military roles for which neither conventional helicopters nor fixed-wing transport aircraft were well-suited. The
United States Department of Defense The United States Department of Defense (DoD, USDOD or DOD) is an executive branch department of the federal government charged with coordinating and supervising all agencies and functions of the government directly related to national secu ...
(DoD) initiated a program to develop an innovative transport aircraft with long-range, high-speed, and vertical-takeoff capabilities, and the Joint-service Vertical take-off/landing Experimental (JVX) program officially commenced in 1981. A partnership between
Bell Helicopter Bell Textron Inc. is an American aerospace manufacturer headquartered in Fort Worth, Texas. A subsidiary of Textron, Bell manufactures military rotorcraft at facilities in Fort Worth, and Amarillo, Texas, as well as commercial helicopters in M ...
and
Boeing Helicopters Boeing Rotorcraft Systems (formerly Boeing Helicopters and before that Boeing Vertol) is the former name of an American aircraft manufacturer, now known as Vertical Lift division of Boeing Defense, Space & Security. The headquarters and main r ...
was awarded a development contract in 1983 for the V-22 tiltrotor aircraft. The Bell Boeing team jointly produces the aircraft. The V-22 first flew in 1989 and began flight testing and design alterations; the complexity and difficulties of being the first tiltrotor for military service led to many years of development. The
United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ...
(USMC) began crew training for the MV-22B Osprey in 2000 and fielded it in 2007; it supplemented and then replaced their Boeing Vertol CH-46 Sea Knights. The
U.S. Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Sign ...
(USAF) fielded its version of the tiltrotor, the CV-22B, in 2009. Since entering service with the Marine Corps and Air Force, the Osprey has been deployed in transportation and
medevac Medical evacuation, often shortened to medevac or medivac, is the timely and efficient movement and en route care provided by medical personnel to wounded being evacuated from a battlefield, to injured patients being evacuated from the scene of a ...
operations over Iraq, Afghanistan, Libya, and Kuwait. The
U.S. Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage o ...
planned to use the CMV-22B for
carrier onboard delivery Carrier onboard delivery (COD) is the use of aircraft to ferry personnel, mail, supplies, and high-priority cargo, such as replacement parts, from shore bases to an aircraft carrier at sea. Several types of aircraft, including helicopters, have ...
duties beginning in 2021.


Development


Origins

The failure of
Operation Eagle Claw Operation Eagle Claw, known as Operation Tabas ( fa, عملیات طبس) in Iran, was a failed operation by the United States Armed Forces ordered by U.S. President Jimmy Carter to attempt the rescue of 52 embassy staff held captive at th ...
, the Iran hostage rescue mission, in 1980 demonstrated to the United States military a needKreisher, Otto
"Finally, the Osprey"
''
Air Force Magazine The Air & Space Forces Association (AFA) is an independent, 501(c)(3) organization, 501(c)(3) non-profit, professional military association for the United States Air Force and United States Space Force. Headquartered in Arlington, Virginia, it ...
'', February 2009.
for "a new type of aircraft, that could not only take off and land vertically but also could carry combat troops, and do so at speed."Mackenzie, Richard (writer)
"Flight of the V-22 Osprey" (Television production)
''Mackenzie Productions'' for ''
Military Channel American Heroes Channel (formerly Military Channel and originally Discovery Wings Channel) is an American multinational pay television television network, channel owned by the Warner Bros. Discovery Networks unit of Warner Bros. Discovery. The n ...
'', 7 April 2008. Retrieved 29 March 2009.
The U.S. Department of Defense began the JVX aircraft program in 1981, under
U.S. Army The United States Army (USA) is the land service branch of the United States Armed Forces. It is one of the eight U.S. uniformed services, and is designated as the Army of the United States in the U.S. Constitution.Article II, section 2, cl ...
leadership. The defining mission of the USMC has been to perform an
amphibious landing Amphibious warfare is a type of offensive military operation that today uses naval ships to project ground and air power onto a hostile or potentially hostile shore at a designated landing beach. Through history the operations were conducted ...
; the service quickly became interested in the JVX program. Recognizing that a concentrated force was vulnerable to a single
nuclear weapon A nuclear weapon is an explosive device that derives its destructive force from nuclear reactions, either fission (fission bomb) or a combination of fission and fusion reactions ( thermonuclear bomb), producing a nuclear explosion. Both bom ...
, airborne solutions with good speed and range allowed for rapid dispersal, and their CH-46 Sea Knights were wearing out. Without replacement, the USMC and the Army merging was a lingering threat, akin to President Truman's proposal following
World War II World War II or the Second World War, often abbreviated as WWII or WW2, was a world war that lasted from 1939 to 1945. It involved the vast majority of the world's countries—including all of the great powers—forming two opposin ...
. The Office of the Secretary of Defense and Navy administration opposed the tiltrotor project, but congressional pressure proved persuasive. The Navy and USMC were given the lead in 1983.Norton 2004, p. 35.Moyers, Al (Director of History and Research)
"The Long Road: AFOTEC's Two-Plus Decades of V-22 Involvement"
''Headquarters Air Force Operational Test and Evaluation Center, United States Air Force'', 1 August 2007.
The JVX combined requirements from the USMC, USAF, Army and Navy.Norton 2004, pp. 22–30. A request for proposals was issued in December 1982 for preliminary design work. Interest was expressed by Aérospatiale, Bell Helicopter, Boeing Vertol,
Grumman The Grumman Aircraft Engineering Corporation, later Grumman Aerospace Corporation, was a 20th century American producer of military and civilian aircraft. Founded on December 6, 1929, by Leroy Grumman and his business partners, it merged in 1994 ...
, Lockheed, and
Westland Westland or Westlands may refer to: Places *Westlands, an affluent neighbourhood in the city of Nairobi, Kenya * Westlands, Staffordshire, a suburban area and ward in Newcastle-under-Lyme *Westland, a peninsula of the Shetland Mainland near Vaila ...
. Contractors were encouraged to form teams. Bell partnered with Boeing Vertol to submit a proposal for an enlarged version of the Bell XV-15 prototype on 17 February 1983. Being the only proposal received, a preliminary design contract was awarded on 26 April 1983.Norton 2004, pp. 31–33. The JVX aircraft was designated ''V-22 Osprey'' on 15 January 1985; by that March, the first six prototypes were being produced, and Boeing Vertol was expanded to handle the workload. Work was split evenly between Bell and Boeing. Bell Helicopter manufactures and integrates the wing, nacelles, rotors, drive system, tail surfaces, and aft ramp, as well as integrates the
Rolls-Royce Rolls-Royce (always hyphenated) may refer to: * Rolls-Royce Limited, a British manufacturer of cars and later aero engines, founded in 1906, now defunct Automobiles * Rolls-Royce Motor Cars, the current car manufacturing company incorporated in ...
engines and performs final assembly. Boeing Helicopters manufactures and integrates the fuselage, cockpit, avionics, and flight controls."V-22 Osprey Backgrounder"
''Boeing Defense, Space & Security'', February 2010.
"Military Aircraft: The Bell-Boeing V-22"
''Bell Helicopter'', 2007. Retrieved 30 December 2010.
The USMC variant received the MV-22 designation, and the USAF variant received CV-22; this was reversed from normal procedure to prevent USMC Ospreys from having a conflicting CV designation with
aircraft carrier An aircraft carrier is a warship that serves as a seagoing airbase, equipped with a full-length flight deck and facilities for carrying, arming, deploying, and recovering aircraft. Typically, it is the capital ship of a fleet, as it allows a ...
s.Norton 2004, p. 30. Full-scale development began in 1986.RL31384, "V-22 Osprey Tilt-Rotor Aircraft: Background and Issues for Congress"
''Congressional Research Service'', 22 December 2009.
On 3 May 1986, Bell Boeing was awarded a US$1.714 billion contract for the V-22 by the U.S. Navy. At this point, all four U.S. military services had acquisition plans for the V-22. The first V-22 was publicly rolled out in May 1988. That year, the U.S. Army left the program, citing a need to focus its budget on more immediate aviation programs. In 1989, the V-22 survived two separate
Senate A senate is a deliberative assembly, often the upper house or chamber of a bicameral legislature. The name comes from the ancient Roman Senate (Latin: ''Senatus''), so-called as an assembly of the senior (Latin: ''senex'' meaning "the el ...
votes that could have resulted in cancellation. Despite the Senate's decision, the Department of Defense instructed the Navy not to spend more money on the V-22. As development cost projections greatly increased in 1988, Defense Secretary
Dick Cheney Richard Bruce Cheney ( ; born January 30, 1941) is an American politician and businessman who served as the 46th vice president of the United States from 2001 to 2009 under President George W. Bush. He is currently the oldest living former U ...
tried to defund it from 1989 to 1992, but was overruled by
Congress A congress is a formal meeting of the representatives of different countries, constituent states, organizations, trade unions, political parties, or other groups. The term originated in Late Middle English to denote an encounter (meeting of a ...
, which provided unrequested program funding.Norton 2004, p. 49. Multiple studies of alternatives found the V-22 provided more capability and effectiveness with similar operating costs.Norton 2004, p. 52. The
Clinton Administration Bill Clinton's tenure as the 42nd president of the United States began with his first inauguration on January 20, 1993, and ended on January 20, 2001. Clinton, a Democrat from Arkansas, took office following a decisive election victory over Re ...
was supportive of the V-22, helping it attain funding.


Flight testing and design changes

The first of six prototypes first flew on 19 March 1989 in the helicopter mode and on 14 September 1989 in fixed-wing mode. The third and fourth prototypes successfully completed the first sea trials on in December 1990. The fourth and fifth prototypes crashed in 1991–92."Navy halts test flights of V-22 as crash investigated"
''Fort Worth Star-Telegram'', 13 June 1991.
From October 1992 to April 1993, the V-22 was redesigned to reduce empty weight, simplify manufacture, and reduce build costs; it was designated V-22B. Flights resumed in June 1993 after safety changes were made to the prototypes.Norton 2004, p. 55. Bell Boeing received a contract for the engineering manufacturing development (EMD) phase in June 1994.Norton 2004, pp. 52–54. The prototypes were also modified to resemble the V-22B standard. At this stage, testing focused on flight envelope expansion, measuring flight loads, and supporting the EMD redesign. Flight testing with the early V-22s continued into 1997.Norton 2004, pp. 55–57. Flight testing of four full-scale development V-22s began at the Naval Air Warfare Test Center,
Naval Air Station Patuxent River Naval Air Station Patuxent River , also known as NAS Pax River, is a United States naval air station located in St. Mary’s County, Maryland, on the Chesapeake Bay near the mouth of the Patuxent River. It is home to Headquarters, Naval Air S ...
,
Maryland Maryland ( ) is a state in the Mid-Atlantic region of the United States. It shares borders with Virginia, West Virginia, and the District of Columbia to its south and west; Pennsylvania to its north; and Delaware and the Atlantic Ocean to ...
. The first EMD flight took place on 5 February 1997. Testing soon fell behind schedule. The first of four low rate initial production aircraft, ordered on 28 April 1997, was delivered on 27 May 1999. The second sea trials were completed onboard in January 1999. During external load testing in April 1999, a V-22 transported the lightweight
M777 howitzer The M777 howitzer is a British towed 155 mm artillery piece in the howitzer class. It is used by the ground forces of Australia, Canada, Colombia, India, Saudi Arabia, Ukraine, and the United States. It was first used in combat during the US ...
. In 2000, there were two fatal crashes, killing a total of 23 marines, and the V-22 was again grounded while the crashes' causes were investigated and various parts were redesigned.Berler, Ron
"Saving the Pentagon's Killer Chopper-Plane"
''Wired'' (CondéNet, Inc), Volume 13, Issue 7, July 2005.
In June 2005, the V-22 completed its final operational evaluation, including long-range deployments, high altitude, desert and shipboard operations; problems previously identified had reportedly been resolved. U.S. Naval Air Systems Command (NAVAIR) worked on software upgrades to increase the maximum speed from to , increase helicopter mode altitude limit from to or , and increase lift performance. By 2012, changes had been made to the hardware, software, and procedures in response to hydraulic fires in the nacelles, vortex ring state control issues, and opposed landings; reliability has improved accordingly. An MV-22 landed and refueled onboard in an evaluation in October 2012. In 2013, cargo handling trials occurred on . In October 2015, NAVAIR tested rolling landings and takeoffs on a carrier, preparing for
carrier onboard delivery Carrier onboard delivery (COD) is the use of aircraft to ferry personnel, mail, supplies, and high-priority cargo, such as replacement parts, from shore bases to an aircraft carrier at sea. Several types of aircraft, including helicopters, have ...
.


Controversy

Development was protracted and controversial, partly because of large cost increases,Bryce, Robert
"Review of political forces that helped shape V-22 program"
''Texas Observer'', 17 June 2004.
some of which were caused by a requirement to fold wings and rotors to fit aboard ships.Whittle, Richard.
Half-airplane, half-helicopter, totally badass
NY Post, 24 May 2015
Archived
on 25 May 2015.
The development budget was first set at US$2.5 billion in 1986, increasing to a projected US$30 billion in 1988. By 2008, US$27 billion had been spent and another US$27.2 billion was required for planned production numbers. Between 2008 and 2011, the V-22's estimated lifetime cost grew by 61%, mostly for maintenance and support. In 2001, Lieutenant Colonel Odin Lieberman, commander of the V-22 squadron at
Marine Corps Air Station New River Marine Corps Air Station New River is a United States Marine Corps helicopter and tilt-rotor base in Jacksonville, North Carolina, in the eastern part of the state. In 1972, the airfield was named McCutcheon Field for General Keith B. McCutcheon ...
, was relieved of duty after allegations that he instructed his unit to falsify maintenance records to make it appear more reliable. Three officers were implicated for their roles in the falsification scandal. In October 2007, a ''
Time Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, to ...
'' magazine article condemned the V-22 as unsafe, overpriced, and inadequate; the USMC responded that the article's data was partly obsolete, inaccurate, and held high expectations for any new field of aircraft.Hoellwarth, John
"Leaders, experts slam Time article on Osprey"
''
Marine Corps Times ''Marine Corps Times'' (ISSN 1522-0869) is a newspaper serving active, reserve and retired United States Marine Corps personnel and their families, providing news, information and analysis as well as community and lifestyle features, educational su ...
'' (Army Times Publishing Company), 16 October 2007.
In 2011, the controversial defense industry supported
Lexington Institute The Lexington Institute is a center-right think tank headquartered in Arlington, Virginia, United States. It focuses mainly on defense and security policy. History, staff, and positions The Lexington Institute was founded in 1998 by former U.S. ...
reported that the average mishap rate per flight hour over the past 10 years was the lowest of any USMC rotorcraft, approximately half of the average fleet accident rate. In 2011, ''
Wired ''Wired'' (stylized as ''WIRED'') is a monthly American magazine, published in print and online editions, that focuses on how emerging technologies affect culture, the economy, and politics. Owned by Condé Nast, it is headquartered in San Fra ...
'' magazine reported that the safety record had excluded ground incidents; the USMC responded that MV-22 reporting used the same standards as other Navy aircraft. By 2012, the USMC reported fleetwide readiness rate had risen to 68%; however, the DOD's Inspector General later found 167 of 200 reports had "improperly recorded" information. Captain Richard Ulsh blamed errors on incompetence, saying that they were "not malicious" or deliberate. The required mission capable rate was 82%, but the average was 53% from June 2007 to May 2010.Shalal-Esa, Andrea
"U.S. eyes V-22 aircraft sales to Israel, Canada, UAE"
''
Reuters Reuters ( ) is a news agency owned by Thomson Reuters Corporation. It employs around 2,500 journalists and 600 photojournalists in about 200 locations worldwide. Reuters is one of the largest news agencies in the world. The agency was estab ...
'', 26 February 2012.
In 2010,
Naval Air Systems Command The Naval Air Systems Command (NAVAIR) provides materiel support for aircraft and airborne weapon systems for the United States Navy. It is one of the Echelon II Navy systems commands (SYSCOM), and was established in 1966 as the successor to the ...
aimed for an 85% reliability rate by 2018. From 2009 to 2014, readiness rates rose 25% to the "high 80s", while cost per flight hour had dropped 20% to $9,520 through a rigorous maintenance improvement program that focused on diagnosing problems before failures occur. , although the V-22 requires more maintenance and has lower availability (62%) than traditional helicopters, it also has a lower mishap rate. The average cost per flight hour is ,Whittle, Richard.
Osprey Shows Its Mettle
pp. 23–26. '' American Helicopter Society'' / Vertiflite May/June 2015, Vol. 61, No. 3.
whereas the
Sikorsky CH-53E Super Stallion The Sikorsky CH-53E Super Stallion is a heavy-lift helicopter operated by the United States military. As the Sikorsky S-80, it was developed from the CH-53 Sea Stallion, mainly by adding a third engine, adding a seventh blade to the main rotor, ...
cost about $20,000 per flight hour in 2007.Whittle, Richard
USMC CH-53E Costs Rise With Op Tempo
''Rotor & Wing, Aviation Today'', January 2007. Quote: For every hour the Corps flies a −53E, it spends 44 maintenance hours fixing it. Every hour a Super Stallion flies it costs about $20,000.
V-22 ownership cost was $83,000 per hour in 2013.Magnuson, Stew.
Future of Tilt-Rotor Aircraft Uncertain Despite V-22's Successes
''National Defense Industrial Association'', July 2015
Archive
/ref> While technically capable of
autorotation Autorotation is a state of flight in which the main rotor system of a helicopter or other rotary-wing aircraft turns by the action of air moving up through the rotor, as with an autogyro, rather than engine power driving the rotor. Bensen, Ig ...
if both engines fail in helicopter mode, a safe landing is difficult. In 2005, a director of the Pentagon's testing office stated that in a loss of power while hovering below , emergency landings "are not likely to be survivable." V-22 pilot Captain Justin "Moon" McKinney stated that: "We can turn it into a plane and glide it down, just like a
C-130 The Lockheed C-130 Hercules is an American four-engine turboprop military transport aircraft designed and built by Lockheed (now Lockheed Martin). Capable of using unprepared runways for takeoffs and landings, the C-130 was originally desig ...
."Thompson, Mark
"V-22 Osprey: A Flying Shame"
''
Time Time is the continued sequence of existence and events that occurs in an apparently irreversible succession from the past, through the present, into the future. It is a component quantity of various measurements used to sequence events, to ...
'', 26 September 2007. Retrieved 8 August 2011.
A complete loss of power requires both engines to fail, as one engine can power both proprotors via interconnected drive shafts. Though
vortex ring state The vortex ring state (VRS) is a dangerous aerodynamic condition that may arise in helicopter flight, when a vortex ring system engulfs the rotor, causing severe loss of lift. The vortex ring state is sometimes referred to as settling with powe ...
(VRS) contributed to a deadly V-22 accident, flight testing found it to be less susceptible to VRS than conventional helicopters. A GAO report stated that the V-22 is "less forgiving than conventional helicopters" during VRS. Several test flights to explore VRS characteristics were canceled. The USMC trains pilots in the recognition of and recovery from VRS, and has instituted operational envelope limits and instrumentation to help avoid VRS conditions.Gross, Kevin, Lt. Col. U.S. Marine Corps and Tom Macdonald, MV-22 test pilot and Ray Dagenhart, MV-22 lead government engineer
NI_Myth_0904,00.html "Dispelling the Myth of the MV-22"
''Proceedings: The Naval Institute''. September 2004.


Production

On 28 September 2005,
the Pentagon The Pentagon is the headquarters building of the United States Department of Defense. It was constructed on an accelerated schedule during World War II. As a symbol of the U.S. military, the phrase ''The Pentagon'' is often used as a metony ...
formally approved full-rate production, increasing from 11 V-22s per year to between 24 and 48 per year by 2012. Of the 458 total planned, 360 are for the USMC, 50 for the USAF, and 48 for the Navy at an average cost of $110 million per aircraft, including development costs. The V-22 had an incremental flyaway cost of $67 million per aircraft in 2008,"FY 2009 Budget Estimates"
p. 133. ''
United States Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
'', February 2008.
The Navy had hoped to shave about $10 million off that cost via a five-year production contract in 2013. Each CV-22 cost $73 million in the FY 2014 budget. On 15 April 2010, the Naval Air Systems Command awarded Bell Boeing a $42.1 million contract to design an integrated processor in response to avionics obsolescence and add new network capabilities. By 2014,
Raytheon Raytheon Technologies Corporation is an American multinational aerospace and defense conglomerate headquartered in Arlington, Virginia. It is one of the largest aerospace and defense manufacturers in the world by revenue and market capitaliza ...
began providing an avionics upgrade that includes
situational awareness Situational awareness or situation awareness (SA) is the perception of environmental elements and events with respect to time or space, the comprehension of their meaning, and the projection of their future status. An alternative definition is tha ...
and blue force tracking. In 2009, a contract for Block C upgrades was awarded to Bell Boeing. In February 2012, the USMC received the first V-22C, featuring a new radar, additional mission management and electronic warfare equipment. In 2015, options for upgrading all aircraft to the V-22C standard were examined. On 12 June 2013, the U.S. DoD awarded a $4.9 billion contract for 99 V-22s in production Lots 17 and 18, including 92 MV-22s for the USMC, for completion in September 2019.Bell-Boeing award V-22 multi-year contract
– Flightglobal.com, 12 June 2013
A provision gives NAVAIR the option to order 23 more Ospreys. As of June 2013, the combined value of all contracts placed totaled $6.5 billion. In 2013, Bell laid off production staff following the US's order being cut to about half of the planned number.Berard, Yamil.

. ''
Fort Worth Star-Telegram The ''Fort Worth Star-Telegram'' is an American daily newspaper serving Fort Worth and Tarrant County, the western half of the North Texas area known as the Metroplex. It is owned by The McClatchy Company. History In May 1905, Amon G. Carter acc ...
'', 5 May 2014. Retrieved 8 May 2014.
Production rate went from 40 in 2012 to 22 planned for 2015. Manufacturing robots have replaced older automated machines for increased accuracy and efficiency; large parts are held in place by suction cups and measured electronically. In March 2014, Air Force Special Operations Command issued a Combat Mission Need Statement for armor to protect V-22 passengers. NAVAIR worked with a Florida-based composite armor company and the Army Aviation Development Directorate to develop and deliver the advanced ballistic stopping system (ABSS) by October 2014. Costing $270,000, the ABSS consists of 66 plates fitting along interior bulkheads and deck, adding to the aircraft's weight, affecting payload and range. The ABSS can be installed or removed when needed in hours and partially assembled in pieces for partial protection of specific areas. As of May 2015, 16 kits had been delivered to the USAF.Air Force special ops looks to add armor, firepower to Ospreys
– ''Air Force Times'', 17 September 2014
Whittle, Richard.
AFSOC Ospreys Armor Up After Painful Lessons Learned In South Sudan
''Breaking Defense'', 15 May 2015
Archive
/ref> In 2015, Bell Boeing set up the V-22 Readiness Operations Center at Ridley Park, Pennsylvania, to gather information from each aircraft to improve fleet performance in a similar manner as the F-35's Autonomic Logistics Information System.


Design


Overview

The Osprey is the world's first production
tiltrotor A tiltrotor is an aircraft which generates lift and propulsion by way of one or more powered rotors (sometimes called ''proprotors'') mounted on rotating shafts or nacelles usually at the ends of a fixed wing. Almost all tiltrotors use a trans ...
aircraft, with one three-bladed
proprotor A proprotor is a spinning airfoil that function as both an airplane-style propeller and a helicopter-style rotor. Several proprotor-equipped convertiplanes, such as the Bell Boeing V-22 Osprey tiltrotor, are capable of switching back and forth betw ...
, turboprop engine, and transmission
nacelle A nacelle ( ) is a "streamlined body, sized according to what it contains", such as an engine, fuel, or equipment on an aircraft. When attached by a pylon entirely outside the airframe, it is sometimes called a pod, in which case it is attached ...
mounted on each wingtip.Croft, John
"Tilters"

Alternate link
'
Air & Space/Smithsonian ''Air & Space/Smithsonian'' is a quarterly magazine published by the National Air and Space Museum The National Air and Space Museum of the Smithsonian Institution, also called the Air and Space Museum, is a museum in Washington, D.C., in the ...
'', 1 September 2007. Retrieved 6 May 2015.
It is classified as a
powered lift A powered lift aircraft takes off and lands vertically under engine power but uses a fixed wing for horizontal flight. Like helicopters, these aircraft do not need a long runway to take off and land, but they have a speed and performance similar ...
aircraft by the
Federal Aviation Administration The Federal Aviation Administration (FAA) is the largest transportation agency of the U.S. government and regulates all aspects of civil aviation in the country as well as over surrounding international waters. Its powers include air traffic m ...
. For takeoff and landing, it typically operates as a helicopter with the nacelles vertical and rotors horizontal. Once airborne, the nacelles rotate forward 90° in as little as 12 seconds for horizontal flight, converting the V-22 to a more fuel-efficient, higher speed turboprop aircraft.
STOL A short takeoff and landing (STOL) aircraft is a conventional fixed-wing aircraft that has short runway requirements for takeoff and landing. Many STOL-designed aircraft also feature various arrangements for use on airstrips with harsh conditio ...
rolling-takeoff and landing capability is achieved by having the nacelles tilted forward up to 45°."V-22 Osprey Guidebook, 2013/2014"
''Bell-Boeing'', 2013. Retrieved 6 February 2014
Archived
in 2014.
Other orientations are possible. Pilots describe the V-22 in airplane mode as comparable to the C-130 in feel and speed. It has a ferry range of over 2,100 nmi. Its operational range is 1,100 nmi.
Composite material A composite material (also called a composition material or shortened to composite, which is the common name) is a material which is produced from two or more constituent materials. These constituent materials have notably dissimilar chemical or ...
s make up 43% of the
airframe The mechanical structure of an aircraft is known as the airframe. This structure is typically considered to include the fuselage, undercarriage, empennage and wings, and excludes the propulsion system. Airframe design is a field of aerospa ...
, and the proprotor blades also use composites. For storage, the V-22's rotors fold in 90 seconds and its wing rotates to align, front-to-back, with the fuselage.Currie, Major Tom P. Jr., USAF
"A Research Report Submitted to the Faculty, In Partial Fulfillment of the Graduation Requirements: The CV-22 'Osprey' and the Impact on Air Force Combat Search and Rescue"
''Air Command and Staff College'', April 1999.
Because of the requirement for folding rotors, their 38-foot (11.6 m) diameter is 5 feet (1.5 m) less than would be optimal for an aircraft of this size to conduct vertical takeoff, resulting in high
disk loading In fluid dynamics, disk loading or disc loading is the average pressure change across an actuator disk, such as an airscrew. Airscrews with a relatively low disk loading are typically called rotors, including helicopter main rotors and tail rot ...
.Whittle, Richard.
Flying The Osprey Is Not Dangerous, Just Different: Veteran Pilots
" '' defense.aol.com'', 5 September 2012. Retrieved 16 September 2012
Archived
on 3 October 2013.
Most missions use fixed wing flight 75% or more of the time, reducing wear and tear and operational costs. This fixed wing flight is higher than typical helicopter missions allowing longer range line-of-sight communications for improved
command and control Command and control (abbr. C2) is a "set of organizational and technical attributes and processes ... hatemploys human, physical, and information resources to solve problems and accomplish missions" to achieve the goals of an organization or en ...
. Exhaust heat from the V-22's engines can potentially damage ships' flight decks and coatings. NAVAIR devised a temporary fix of portable heat shields placed under the engines and determined that a long-term solution would require redesigning decks with heat resistant coating, passive thermal barriers, and ship structure changes. Similar changes are required for
F-35B The Lockheed Martin F-35 Lightning II is an American family of single-seat, single-engine, all-weather stealth multirole combat aircraft that is intended to perform both air superiority and strike missions. It is also able to provide elect ...
operations. In 2009,
DARPA The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adv ...
requested solutions for installing robust flight deck cooling.Lazarus, Aaron
DARPA-BAA 10-10, Thermal Management System (TMS)
''
DARPA The Defense Advanced Research Projects Agency (DARPA) is a research and development agency of the United States Department of Defense responsible for the development of emerging technologies for use by the military. Originally known as the Adv ...
'', 16 November 2009. Retrieved 18 March 2012. Quote: "MV-22 Osprey has resulted in ship flight deck buckling that has been attributed to the excessive heat impact from engine exhaust plumes. Navy studies have indicated that repeated deck buckling will likely cause deck failure before planned ship life."
A heat-resistant anti-skid metal spray named Thermion has been tested on .


Propulsion

The V-22's two Rolls-Royce AE 1107C engines are connected by
drive shaft A drive shaft, driveshaft, driving shaft, tailshaft (Australian English), propeller shaft (prop shaft), or Cardan shaft (after Girolamo Cardano) is a component for transmitting mechanical power (physics), power and torque and rotation, usually ...
s to a common central
gearbox Propulsion transmission is the mode of transmitting and controlling propulsion power of a machine. The term ''transmission'' properly refers to the whole drivetrain, including clutch, gearbox, prop shaft (for rear-wheel drive vehicles), differe ...
so that one engine can power both proprotors if an engine failure occurs.Norton 2004, pp. 98–99. Either engine can power both proprotors through the wing driveshaft. However, the V-22 is generally not capable of hovering on one engine. If a proprotor gearbox fails, that proprotor cannot be feathered, and both engines must be stopped before an
emergency landing An emergency landing is a premature landing made by an aircraft in response to an emergency involving an imminent or ongoing threat to the safety and operation of the aircraft, or involving a sudden need for a passenger or crew on board to term ...
. The autorotation characteristics are poor because of the rotors' low
inertia Inertia is the idea that an object will continue its current motion until some force causes its speed or direction to change. The term is properly understood as shorthand for "the principle of inertia" as described by Newton in his first law ...
. In September 2013, Rolls-Royce announced that it had increased the AE-1107C engine's power by 17% via the adoption of a new Block 3 turbine, increased fuel valve flow capacity, and software updates; it should also improve reliability in high-altitude, high-heat conditions and boost maximum payload limitations from . A Block 4 upgrade is reportedly being examined, which may increase power by up to 26%, producing close to , and improve fuel consumption. In August 2014, the U.S. military issued a request for information for a potential drop-in replacement for the AE-1107C engines. Submissions must have a power rating of no less than at 15,000 rpm, operate at up to at up to , and fit into the existing wing nacelles with minimal structural or external modifications. In September 2014, the U.S. Navy, who already purchase engines separately to airframes, was reportedly considering an alternative engine supplier to reduce costs. The
General Electric GE38 The General Electric GE38 is a gas turbine developed by GE Aviation for turboprop and turboshaft applications. It powers the Sikorsky CH-53K King Stallion as the T408. Design and development The GE27 was developed in the early 1980s under the " ...
is one option, giving commonality with the
Sikorsky CH-53K King Stallion The Sikorsky CH-53K King Stallion (Sikorsky S-95) is a heavy-lift cargo helicopter designed and produced by Sikorsky Aircraft. The King Stallion is an evolution of the long running CH-53 series of helicopters which have been in continuous ser ...
. The V-22 has a maximum rotor
downwash In aeronautics, downwash is the change in direction of air deflected by the aerodynamic action of an airfoil, wing, or helicopter rotor blade in motion, as part of the process of producing lift.Crane, Dale: ''Dictionary of Aeronautical Terms, thir ...
speed of over , more than the lower limit of a
hurricane A tropical cyclone is a rapidly rotating storm system characterized by a low-pressure center, a closed low-level atmospheric circulation, strong winds, and a spiral arrangement of thunderstorms that produce heavy rain and squalls. Depend ...
.John Gordon IV et al
Assessment of Navy Heavy-Lift Aircraft Options
p39. ''
RAND Corporation The RAND Corporation (from the phrase "research and development") is an American nonprofit global policy think tank created in 1948 by Douglas Aircraft Company to offer research and analysis to the United States Armed Forces. It is financed ...
'', 2005. Retrieved 18 March 2012.
Archived
in 2011.
"Hurricanes... Unleashing Nature's Fury: A Preparedness Guide"
National Oceanic and Atmospheric Administration The National Oceanic and Atmospheric Administration (abbreviated as NOAA ) is an United States scientific and regulatory agency within the United States Department of Commerce that forecasts weather, monitors oceanic and atmospheric conditio ...
,
National Weather Service The National Weather Service (NWS) is an Government agency, agency of the Federal government of the United States, United States federal government that is tasked with providing weather forecasts, warnings of hazardous weather, and other weathe ...
, September 2006.
The rotorwash usually prevents the starboard door's usage in hover; the rear ramp is used for rappelling and hoisting instead.McKinney, Mike
"Flying the V-22"
''
Vertical Vertical is a geometric term of location which may refer to: * Vertical direction, the direction aligned with the direction of the force of gravity, up or down * Vertical (angles), a pair of angles opposite each other, formed by two intersecting s ...
'', 28 March 2012
Archived
on 30 April 2014.
Waters, USMC Cpl. Lana D
V-22 Osprey Fast rope 1
''
USMC The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through co ...
'', 6 November 2004
Archived
on 21 March 2005.
The V-22 loses 10% of its vertical lift over a
tiltwing A tiltwing aircraft features a wing that is horizontal for conventional forward flight and rotates up for vertical takeoff and landing. It is similar to the tiltrotor design where only the propeller and engine rotate. Tiltwing aircraft are typical ...
design when operating in helicopter mode because of the wings' airflow resistance, while the tiltrotor design has better short takeoff and landing performance. V-22s must keep at least of vertical separation between each other to avoid each other's rotor wake, which causes turbulence and potentially control loss.


Avionics

The V-22 is equipped with a
glass cockpit A glass cockpit is an aircraft cockpit that features electronic (digital) flight instrument displays, typically large LCD screens, rather than the traditional style of analog dials and gauges. While a traditional cockpit relies on numerous mech ...
, which incorporates four
multi-function display A multifunction display (MFD) is a small-screen ( CRT or LCD) surrounded by multiple soft keys (configurable buttons) that can be used to display information to the user in numerous configurable ways. MFDs originated in aviation, first in mil ...
s (MFDs, compatible with
night-vision goggles A night-vision device (NVD), also known as a night optical/observation device (NOD), night-vision goggle (NVG), is an optoelectronic device that allows visualization of images in low levels of light, improving the user's night vision. The dev ...
) and one shared central display unit, to display various images including: digimaps, imagery from the Turreted
forward-looking infrared Forward-looking infrared (FLIR) cameras, typically used on military and civilian aircraft, use a thermographic camera that senses infrared radiation. The sensors installed in forward-looking infrared cameras, as well as those of other thermal ...
system primary flight instruments, navigation (
TACAN A tactical air navigation system, commonly referred to by the acronym TACAN, is a navigation system used by military aircraft. It provides the user with bearing and distance (slant-range or hypotenuse) to a ground or ship-borne station. It is a mor ...
,
VOR VOR or vor may refer to: Organizations * Vale of Rheidol Railway in Wales * Voice of Russia, a radio broadcaster * Volvo Ocean Race, a yacht race Science, technology and medicine * VHF omnidirectional range, a radio navigation aid used in a ...
, ILS,
GPS The Global Positioning System (GPS), originally Navstar GPS, is a Radionavigation-satellite service, satellite-based radionavigation system owned by the United States government and operated by the United States Space Force. It is one of t ...
,
INS INS or Ins or ''variant'', may refer to: Places * Ins, Switzerland, a municipality * Creech Air Force Base (IATA airport code INS) * Indonesia, ITF and UNDP code INS Biology *'' Ins'', a New World genus of bee flies * INS, the gene for the insul ...
), and system status. The flight director panel of the cockpit management system allows for fully coupled (autopilot) functions that take the aircraft from forward flight into a hover with no pilot interaction other than programming the system.Ringenbach, Daniel P. and Scott Brick
"Hardware-in-the-loop testing for development and integration of the V-22 autopilot system, pp. 28–36"
''Technical Papers (A95-39235 10–01): AIAA Flight Simulation Technologies Conference Technical Papers'', Baltimore, MD, 3 August 2008.
The fuselage is not
pressurized {{Wiktionary Pressurization or pressurisation is the application of pressure in a given situation or environment. Industrial Industrial equipment is often maintained at pressures above or below atmospheric. Atmospheric This is the process by ...
, and personnel must wear on-board oxygen masks above 10,000 feet. The V-22 has triple-redundant
fly-by-wire Fly-by-wire (FBW) is a system that replaces the conventional manual flight controls of an aircraft with an electronic interface. The movements of flight controls are converted to electronic signals transmitted by wires, and flight control ...
flight control systems; these have computerized damage control to automatically isolate damaged areas. With the nacelles pointing straight up in conversion mode at 90° the flight computers command it to fly like a helicopter, cyclic forces being applied to a conventional swashplate at the rotor hub. With the nacelles in airplane mode (0°) the
flaperon A flaperon (a portmanteau of flap and aileron) on an aircraft's wing is a type of control surface that combines the functions of both flaps and ailerons. Some smaller kitplanes have flaperons for reasons of simplicity of manufacture, while ...
s, rudder, and elevator fly similar to an airplane. This is a gradual transition, occurring over the nacelles' rotation range; the lower the nacelles, the greater effect of the airplane-mode control surfaces.Norton 2004, pp. 6–9, 95–96. The nacelles can rotate past vertical to 97.5° for rearward flight.Markman and Holder 2000, p. 58.Norton 2004, p. 97. The V-22 can use the "80 Jump" orientation with the nacelles at 80° for takeoff to quickly achieve high altitude and speed. The controls automate to the extent that it can hover in low wind without hands on the controls. New USMC V-22 pilots learn to fly helicopter and multiengine fixed-wing aircraft before the tiltrotor. Some V-22 pilots believe that former fixed-wing pilots may be preferable over helicopter users, as they are not trained to constantly adjust the controls in hover. Others say that experience with helicopters' hovering and precision is most important. the US military does not track whether fixed-wing or helicopter pilots transition more easily to the V-22, according to USMC Colonel Matthew Kelly, V-22 project manager. He said that fixed-wing pilots are more experienced at instrument flying, while helicopter pilots are more experienced at scanning outside when the aircraft is moving slowly.


Armament

The V-22 can be armed with one 7.62×51mm NATO (
.308 The .308 Winchester is a smokeless powder rimless bottlenecked rifle cartridge widely used for hunting, target shooting, police, military, and personal protection applications globally. It is similar but not identical to the 7.62×51mm NATO ...
 in
caliber In guns, particularly firearms, caliber (or calibre; sometimes abbreviated as "cal") is the specified nominal internal diameter of the gun barrel Gauge (firearms) , bore – regardless of how or where the bore is measured and whether the f ...
) M240 machine gun or .50 in caliber (12.7 mm) M2 machine gun on the rear loading ramp. A 12.7 mm (.50 in) GAU-19 three-barrel Gatling gun mounted below the nose was studied.
BAE Systems BAE Systems plc (BAE) is a British multinational arms, security, and aerospace company based in London, England. It is the largest defence contractor in Europe, and ranked the seventh-largest in the world based on applicable 2021 revenues. ...
developed a belly-mounted, remotely operated
gun turret A gun turret (or simply turret) is a mounting platform from which weapons can be fired that affords protection, visibility and ability to turn and aim. A modern gun turret is generally a rotatable weapon mount that houses the crew or mechani ...
system,"BAE Systems Launches New V-22 Defensive Weapon System, Begins On-The-Move Testing"
''BAE Systems'', 2 October 2007.
the Interim Defense Weapon System (IDWS);McCullough, Amy. "Ospreys, with boost in firepower, enter Afghanistan". ''
Marine Corps Times ''Marine Corps Times'' (ISSN 1522-0869) is a newspaper serving active, reserve and retired United States Marine Corps personnel and their families, providing news, information and analysis as well as community and lifestyle features, educational su ...
'', 7 December 2009, p. 24.
it is remotely operated by a gunner, targets are acquired via a separate pod using color television and forward looking infrared imagery.Whittle, Richard
"BAE Remote Guardians Join Osprey Fleet"
''Rotor & Wing'', 1 January 2010.
The IDWS was installed on half of the V-22s deployed to Afghanistan in 2009; it found limited use because of its weight and restrictive
rules of engagement Rules of engagement (ROE) are the internal rules or directives afforded military forces (including individuals) that define the circumstances, conditions, degree, and manner in which the use of force, or actions which might be construed as pro ...
. There were 32 IDWSs available to the USMC in June 2012; V-22s often flew without it as the added weight reduced cargo capacity. The V-22's speed allows it to outrun conventional support helicopters, thus a self-defense capability was required on long-range independent operations. The infrared gun camera proved useful for reconnaissance and surveillance. Other weapons were studied to provide all-quadrant fire, including nose guns, door guns, and non-lethal countermeasures to work with the current ramp-mounted machine gun and the IDWS. In 2014, the USMC studied new weapons with "all-axis, stand-off, and precision capabilities", akin to the
AGM-114 Hellfire The AGM-114 Hellfire is an air-to-ground missile (AGM) first developed for anti-armor use, later developed for precision drone strikes against other target types, especially high-value targets. It was originally developed under the name '' Heli ...
,
AGM-176 Griffin The AGM-176 Griffin is a lightweight, precision-guided munition developed by Raytheon. It can be launched from the ground or air as a rocket-powered missile or dropped from the air as a guided bomb. It carries a relatively small warhead, and was ...
,
Joint Air-to-Ground Missile The AGM-179 Joint Air-to-Ground Missile (JAGM) is an American military program to develop an air-to-surface missile to replace the current air-launched BGM-71 TOW, AGM-114 Hellfire, and AGM-65 Maverick missiles. The U.S. Army, Navy, and Marine C ...
, and
GBU-53/B The GBU-53/B StormBreaker, previously known as the Small Diameter Bomb II, is an American air-launched, precision-guided glide bomb. Development was started in 2006 for a class bomb that can identify and strike mobile targets from standoff dista ...
SDB II. In November 2014, Bell Boeing conducted self-funded weapons tests, equipping a V-22 with a pylon on the front fuselage and replacing the AN/AAQ-27A EO camera with an L-3 Wescam MX-15 sensor/
laser designator A laser designator is a laser light source which is used to designate a target. Laser designators provide targeting for laser-guided bombs, missiles, or precision artillery munitions, such as the Paveway series of bombs, AGM-114 Hellfire, o ...
. 26 unguided Hydra 70 rockets, two guided
APKWS The AGR-20 Advanced Precision Kill Weapon System (APKWS) is a design conversion of Hydra 70 unguided rockets with a laser guidance kit to turn them into precision-guided munitions (PGMs). APKWS is approximately one-third the cost and one-third ...
rockets, and two Griffin B missiles were fired over five flights. The USMC and USAF sought a traversable nose-mounted weapon connected to a helmet-mounted sight;
recoil Recoil (often called knockback, kickback or simply kick) is the rearward thrust generated when a gun is being discharged. In technical terms, the recoil is a result of conservation of momentum, as according to Newton's third law the force requ ...
complicated integrating a forward-facing gun. A pylon could carry of munitions. However, by 2019, the USMC opted for IDWS upgrades over adopting new weapons.


Refueling capability

Boeing is developing a roll-on/roll-off aerial refueling kit, which would give the V-22 the ability to refuel other aircraft. Having an aerial refueling capability that can be based on
Wasp-class amphibious assault ship The ''Wasp'' class is a class of landing helicopter dock (LHD) amphibious assault ships operated by the United States Navy. Based on the , with modifications to operate more advanced aircraft and landing craft, the ''Wasp'' class is capable of ...
s would increase the F-35B's strike power, removing reliance on refueling assets solely based on large
Nimitz-class aircraft carrier The ''Nimitz'' class is a class of ten nuclear-powered aircraft carriers in service with the United States Navy. The lead ship of the class is named after World War II United States Pacific Fleet commander Fleet Admiral Chester W. Nimitz, w ...
s or land bases. The roll-on/roll-off kit can also be applicable to
intelligence, surveillance and reconnaissance ISTAR stands for intelligence, surveillance, target acquisition, and reconnaissance. In its macroscopic sense, ISTAR is a practice that links several battlefield functions together to assist a combat force in employing its sensors and managing t ...
(ISR) functions. Boeing funded a non-functional demonstration on a VMX-22 aircraft; a prototype kit was successfully tested with an F/A-18 on 5 September 2013. The high-speed version of the hose/drogue refueling system can be deployed at and function at up to . A mix of tanks and a roll-on/roll-off bladder house up to of fuel. The ramp must open to extend the hose, then raised once extended. It can refuel rotorcraft, needing a separate drogue used specifically by helicopters and a converted nacelle. Many USMC ground vehicles can run on aviation fuel, a refueling V-22 could service these. In late 2014, it was stated that V-22 tankers could be in use by 2017, but contract delays pushed IOC to late 2019. As part of a 26 May 2016 contract award to Boeing, Cobham was contracted to adapt their FR-300 hose drum unit as used by the KC-130 in October 2016. While the Navy has not declared its interest in the capability, it could be leveraged later on.


Operational history

In October 2019, the fleet of 375 V-22s operated by the U.S. Armed Forces surpassed the 500,000 flight hour mark.


U.S. Marine Corps

Since March 2000,
VMMT-204 Marine Medium Tiltrotor Training Squadron 204 (VMMT-204) is the MV-22 Osprey training squadron of the United States Marine Corps. Known as the "Raptors", the squadron was originally designated Marine Medium Helicopter Training Squadron 204 (HMT-204 ...
has conducted training for the type. In December 2005, Lieutenant General James Amos, commander of II Marine Expeditionary Force, accepted delivery of the first batch of MV-22s. The unit reactivated in March 2006 as the first MV-22 squadron, redesignated as
VMM-263 Marine Medium Tiltrotor Squadron 263 (VMM-263) is a United States Marine Corps tiltrotor squadron consisting of MV-22B Osprey transport aircraft. The squadron, known as the "Thunder Chickens", is based at Marine Corps Air Station New River, North ...
. In 2007, HMM-266 became Marine Medium Tiltrotor Squadron 266 ( VMM-266)"Marine Medium Tiltrotor Squadron 266 History"
''U.S. Marine Corps''. Retrieved 16 October 2011.
and reached
initial operational capability Initial operating capability or initial operational capability (IOC) is the state achieved when a capability is available in its minimum usefully deployable form. The term is often used in government or military procurement. The United States D ...
. It started replacing the
CH-46 Sea Knight The Boeing Vertol CH-46 Sea Knight is a medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing. Development of ...
in 2007; the CH-46 was retired in October 2014.Carter, Chelsea J
"Miramar Base to Get Osprey Squadrons"
''
USA Today ''USA Today'' (stylized in all uppercase) is an American daily middle-market newspaper and news broadcasting company. Founded by Al Neuharth on September 15, 1982, the newspaper operates from Gannett's corporate headquarters in Tysons, Virgini ...
'' (Associated Press), 18 March 2008.
On 13 April 2007, the USMC announced the first V-22 combat deployment at Al Asad Airbase, Iraq.Mount, Mike
"Marines to deploy tilt-rotor aircraft to Iraq"
CNN, 14 April 2007.
"Controversial Osprey aircraft heading to Iraq; Marines bullish on hybrid helicopter-plane despite past accidents"
MSNBC, 13 April 2007.
V-22s in Iraq's Anbar province were used for transport and scout missions. General
David Petraeus David Howell Petraeus (; born November 7, 1952) is a retired United States Army general and public official. He served as Director of the Central Intelligence Agency from September 6, 2011, until his resignation on November 9, 2012. Prior to ...
, the top U.S. military commander in Iraq, used one to visit troops on Christmas Day 2007;Mount, Mike
"Maligned aircraft finds redemption in Iraq, military says"
CNN, 8 February 2008.
as did
Barack Obama Barack Hussein Obama II ( ; born August 4, 1961) is an American politician who served as the 44th president of the United States from 2009 to 2017. A member of the Democratic Party, Obama was the first African-American president of the U ...
during his 2008 presidential campaign tour in Iraq.Hambling, David
"Osprey's 'Excellent Photo Op
''Wired'' (CondéNet, Inc.), 31 July 2008.
USMC Col. Kelly recalled how visitors were reluctant to fly on the unfamiliar aircraft, but after seeing its speed and ability to fly above ground fire, "All of a sudden, the entire flight schedule was booked. No senior officer wanted to go anywhere unless they could fly on the V-22". Obtaining spares proved problematic.Warwick, Graham

''Flightglobal'', 7 February 2008.
By July 2008, the V-22 had flown 3,000 sorties totaling 5,200 hours in Iraq. General
George J. Trautman III George Joseph Trautman III is a retired U.S. Marine Lieutenant General served as the Deputy Commandant for Aviation of the United States Marine Corps from 2007 to 2011. He retired from active duty military service on March 31, 2011. Military car ...
praised its greater speed and range over legacy helicopters, saying "it turned his battle space from the size of Texas into the size of Rhode Island." Despite attacks by
man-portable air-defense system Man-portable air-defense systems (MANPADS or MPADS) are portable surface-to-air missiles. They are guided weapons and are a threat to low-flying aircraft, especially helicopters. Overview MANPADS were developed in the 1950s to provide military ...
s and small arms, none were lost to enemy fire by late 2009.Gertler, Jeremiah. (quoting USMC Karsten Heckl
"V-22 Osprey Tilt-Rotor Aircraft: Background and Issues for Congress"
, p. 30. ''
Congressional Research Service reports The Congressional Research Service (CRS) is a public policy research institute of the United States Congress. Operating within the Library of Congress, it works primarily and directly for members of Congress and their committees and staff on a c ...
'', 22 December 2009.
A
Government Accountability Office The U.S. Government Accountability Office (GAO) is a legislative branch government agency that provides auditing, evaluative, and investigative services for the United States Congress. It is the supreme audit institution of the federal govern ...
study stated that by January 2009, the 12 MV-22s in Iraq had completed all assigned missions; mission capable rates averaged 57% to 68%, and an overall full mission capable rate of 6%. It also noted weaknesses in situational awareness, maintenance, shipboard operations and transport capability."GAO-09-482: Defense Acquisitions, Assessments Needed to Address V-22 Aircraft Operational and Cost Concerns to Define Future Investments" (summary)
Government Accountability Office. Retrieved: 30 December 2010.
The report concluded: "deployments confirmed that the V-22's enhanced speed and range enable personnel and internal cargo to be transported faster and farther than is possible with the legacy helicopters". MV-22s deployed to
Afghanistan Afghanistan, officially the Islamic Emirate of Afghanistan,; prs, امارت اسلامی افغانستان is a landlocked country located at the crossroads of Central Asia and South Asia. Referred to as the Heart of Asia, it is bordere ...
in November 2009 with
VMM-261 Marine Medium Tiltrotor Squadron 261 (VMM-261) is a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "Raging Bulls", is based at Marine Corps Air Station (MCAS) New River, No ...
;McLeary, Paul
"Trial By Fire"
''
Aviation Week ''Aviation Week & Space Technology'', often abbreviated ''Aviation Week'' or ''AW&ST'', is the flagship magazine of the Aviation Week Network. The weekly magazine is available in print and online, reporting on the aerospace, defense and aviatio ...
'', 15 March 2010.
it saw its first offensive combat mission,
Operation Cobra's Anger Operation Cobra's Anger was a US-led offensive in Helmand province in southern Afghanistan. About 1,000 Marines 150 Afghan troops were involved, as well as a Danish armor attachment. The operation began in the early hours of December 4th, 200 ...
, on 4 December 2009. V-22s assisted in inserting 1,000 USMC and 150 Afghan troops into the Now Zad Valley of
Helmand Province Helmand (Pashto/Dari: ; ), also known as Hillmand, in ancient times, as Hermand and Hethumand, is one of the 34 provinces of Afghanistan Afghanistan is divided into 34 provinces (, '' wilåyat''). The provinces of Afghanistan are the primar ...
in southern Afghanistan to disrupt
Taliban The Taliban (; ps, طالبان, ṭālibān, lit=students or 'seekers'), which also refers to itself by its state (polity), state name, the Islamic Emirate of Afghanistan, is a Deobandi Islamic fundamentalism, Islamic fundamentalist, m ...
operations. General James Amos stated that Afghanistan's MV-22s had surpassed 100,000 flight hours, calling it "the safest airplane, or close to the safest airplane" in the USMC inventory. The V-22's Afghan deployment was set to end in late 2013 with the drawdown of combat operations; however, VMM-261 was directed to extend operations for
casualty evacuation Casualty evacuation, also known as CASEVAC or by the callsign Dustoff or colloquially Dust Off, is a military term for the emergency patient evacuation of casualties from a combat zone. Casevac can be done by both ground and air. "DUSTOFF" is ...
, being quicker than helicopters enabled more casualties to reach a hospital within the ' golden hour'; they were fitted with medical equipment such as heart monitors and triage supplies. In January 2010, the MV-22 was sent to Haiti as part of
Operation Unified Response Operation Unified Response was the United States military's response to the 2010 Haiti earthquake. It was conducted by Joint Task Force Haiti and commanded by United States Southern Command (USSOUTHCOM) Military Deputy Commander Lieutenant Gen ...
relief efforts after an earthquake, the type's first humanitarian mission.Talton, Trista
"24th MEU joining Haiti relief effort"
''Marine Corps Times'', 20 January 2010. Retrieved 21 January 2010.
In March 2011, two MV-22s from helped rescue a downed USAF
F-15E The McDonnell Douglas (now Boeing) F-15E Strike Eagle is an American all-weather multirole strike fighter derived from the McDonnell Douglas F-15 Eagle. The F-15E was designed in the 1980s for long-range, high-speed interdiction without rel ...
crew member during Operation Odyssey Dawn. On 2 May 2011, following
Operation Neptune's Spear On May 2, 2011, Osama bin Laden, the founder and first leader of the Islamist militant group al-Qaeda, was shot several times and killed at his compound in the Pakistani city of Abbottabad, by United States Navy SEALs of the U.S. Naval Spe ...
, the body of
Osama bin Laden Osama bin Mohammed bin Awad bin Laden (10 March 1957 – 2 May 2011) was a Saudi-born extremist militant who founded al-Qaeda and served as its leader from 1988 until Killing of Osama bin Laden, his death in 2011. Ideologically a Pan-Islamism ...
, founder of the
al-Qaeda Al-Qaeda (; , ) is an Islamic extremism, Islamic extremist organization composed of Salafist jihadists. Its members are mostly composed of Arab, Arabs, but also include other peoples. Al-Qaeda has mounted attacks on civilian and military ta ...
terrorist group, was flown by a MV-22 to the aircraft carrier in the
Arabian Sea The Arabian Sea ( ar, اَلْبَحرْ ٱلْعَرَبِيُّ, Al-Bahr al-ˁArabī) is a region of the northern Indian Ocean bounded on the north by Pakistan, Iran and the Gulf of Oman, on the west by the Gulf of Aden, Guardafui Channel ...
, prior to his
burial at sea Burial at sea is the disposal of human remains in the ocean, normally from a ship or boat. It is regularly performed by navies, and is done by private citizens in many countries. Burial-at-sea services are conducted at many different location ...
. In 2013, several MV-22s received communications and seating modifications to support the
Marine One Marine One is the call sign of any United States Marine Corps aircraft carrying the president of the United States. It usually denotes a helicopter operated by Marine Helicopter Squadron One ( HMX-1) "Nighthawks", consisting of either the larg ...
presidential transport squadron because of the urgent need for CH-53Es in Afghanistan. In May 2010, Boeing announced plans to submit the V-22 for the
VXX VXX, officially the Presidential Helicopter Replacement Program, is a procurement program to replace aging Marine One helicopters that transport the President of the United States. The current VH-3 helicopters have aging airframes, having e ...
presidential transport replacement.Reed, John
"Boeing to make new multiyear Osprey offer"
''
Marine Corps Times ''Marine Corps Times'' (ISSN 1522-0869) is a newspaper serving active, reserve and retired United States Marine Corps personnel and their families, providing news, information and analysis as well as community and lifestyle features, educational su ...
'', 5 May 2010. Retrieved 6 May 2010.
From 2 to 5 August 2013, two MV-22s completed the longest distance Osprey tanking mission to date. Flying from
Marine Corps Air Station Futenma is a United States Marine Corps base located in Ginowan, Okinawa, Japan, northeast of Naha, on the island of Okinawa. It is home to approximately 3,000 Marines of the 1st Marine Aircraft Wing and other units, and has been a U.S. military ai ...
in Okinawa alongside two KC-130J tankers, they flew to Clark Air Base in the
Philippines The Philippines (; fil, Pilipinas, links=no), officially the Republic of the Philippines ( fil, Republika ng Pilipinas, links=no), * bik, Republika kan Filipinas * ceb, Republika sa Pilipinas * cbk, República de Filipinas * hil, Republ ...
on 2 August; then to
Darwin, Australia Darwin ( ; Larrakia: ) is the capital city of the Northern Territory, Australia. With an estimated population of 147,255 as of 2019, the city contains the majority of the residents of the sparsely populated Northern Territory. It is the smalle ...
, on 3 August; to Townsville, Australia, on 4 August; and finally rendezvoused with on 5 August. In 2013, the USMC formed an intercontinental response force, the
Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa Special Purpose Marine Air-Ground Task Force – Crisis Response – Africa (SP-MAGTF-CR-AF) is a Marine Air-Ground Task Force that is permanently based at Morón Air Base in Spain. SP-MAGTF-CR-AF reports to U.S. Marine Corps Forces Africa under ...
, using V-22s outfitted with specialized communications gear. In 2013, following
Typhoon Haiyan Typhoon Haiyan, known in the Philippines as Super Typhoon Yolanda, was one of the most powerful tropical cyclones ever recorded. On making landfall, Haiyan devastated portions of Southeast Asia, particularly the Philippines. It is one of the ...
, 12 MV-22s of the 3rd Marine Expeditionary Brigade were deployed to the Philippines for disaster relief operations;Hoyle, Craig

''
Flight International ''Flight International'' is a monthly magazine focused on aerospace. Published in the United Kingdom and founded in 1909 as "A Journal devoted to the Interests, Practice, and Progress of Aerial Locomotion and Transport", it is the world's oldes ...
'', 20 November 2013.
its abilities were described as "uniquely relevant", flying faster and with greater payloads while moving supplies throughout the island archipelago.


U.S. Air Force

The USAF's first operational CV-22 was delivered to the 58th Special Operations Wing (58th SOW) at Kirtland Air Force Base,
New Mexico ) , population_demonym = New Mexican ( es, Neomexicano, Neomejicano, Nuevo Mexicano) , seat = Santa Fe , LargestCity = Albuquerque , LargestMetro = Tiguex , OfficialLang = None , Languages = English, Spanish ( New Mexican), Navajo, Ker ...
, in March 2006. Early aircraft were delivered to the 58th SOW and used for training personnel for special operations use."CV-22 delivered to Air Force"
''Air Force Special Operations Command News Service'' via ''Air Force Link (United States Air Force)'', 21 March 2006. Retrieved 3 August 2008.
On 16 November 2006, the USAF officially accepted the CV-22 in a ceremony conducted at
Hurlburt Field Hurlburt Field is a United States Air Force installation located in Okaloosa County, Florida, immediately west of the town of Mary Esther. It is part of the greater Eglin Air Force Base reservation and is home to Headquarters Air Force Spe ...
, Florida."CV-22 arrival"
''Hulbert Field, United States Air Force'', 20 April 2006. Retrieved 20 November 2006.
The USAF's first operational deployment sent four CV-22s to
Mali Mali (; ), officially the Republic of Mali,, , ff, 𞤈𞤫𞤲𞥆𞤣𞤢𞥄𞤲𞤣𞤭 𞤃𞤢𞥄𞤤𞤭, Renndaandi Maali, italics=no, ar, جمهورية مالي, Jumhūriyyāt Mālī is a landlocked country in West Africa. Mali ...
in November 2008 in support of Exercise Flintlock. The CV-22s flew nonstop from Hurlburt Field, Florida, with in-flight refueling. AFSOC declared that the
8th Special Operations Squadron The 8th Special Operations Squadron is a squadron of the United States Air Force. It is assigned to the 1st Special Operations Wing, Air Force Special Operations Command, stationed at Hurlburt Field, Florida. The squadron is equipped with the Be ...
reached Initial Operational Capability in March 2009, with six CV-22s in service.Sirak, Michael
"Osprey Ready for Combat"
''Air Force Magazine'', Volume 92, Issue 5, May 2009, pp. 11–12. Retrieved 10 May 2009.
In December 2013, three CV-22s came under small arms fire while trying to evacuate American civilians in
Bor, South Sudan Bor is a historic city in South Sudan’s central region, being the epicenter of national liberation revolution with multiple landmarks that tells the story. In Malual-Chaat barrack, statues of liberators and destroyed weapons are conserved ...
, during the
2013 South Sudanese political crisis The South Sudanese Civil War was a multi-sided civil war in South Sudan between forces of the government and opposition forces. In December 2013, President Kiir accused his former deputy Riek Machar and ten others of attempting a coup d'état. ...
; the aircraft flew to
Entebbe, Uganda Entebbe is a city in Central Uganda. Located on a Lake Victoria peninsula, approximately southwest of the Ugandan capital city, Kampala. Entebbe was once the seat of government for the Protectorate of Uganda prior to independence, in 1962. The c ...
, after the mission was aborted. South Sudanese officials stated that the attackers were rebels. The CV-22s had flown to Bor over three countries across . The formation was hit 119 times, wounding four crew and causing flight control failures and hydraulic and fuel leaks on all three aircraft. Fuel leaks resulted in multiple air-to-air refuelings en route. After the incident, AFSOC developed optional armor floor panels. The USAF found that "CV-22 wake modeling is inadequate for a trailing aircraft to make accurate estimations of safe separation from the preceding aircraft." In 2015, the USAF sought to configure the CV-22 to perform combat search and rescue in addition to its long-range special operations transport mission. It would complement the
HH-60G Pave Hawk The Sikorsky MH-60G/HH-60G Pave Hawk is a four-blade, twin-engine, medium-lift utility military helicopter manufactured by Sikorsky Aircraft. It is a derivative of the UH-60 Black Hawk and incorporates the US Air Force PAVE electronic systems ...
and planned HH-60W rescue helicopters, being employed in scenarios where high speed is better suited to search and rescue than more nimble but slower helicopters.


U.S. Navy

The V-22 program originally included Navy 48 HV-22s, but none were ordered. In 2009, it was proposed that it replace the
C-2 Greyhound The Grumman C-2 Greyhound is a twin-engine, high-wing cargo aircraft designed to carry supplies, mail, and passengers to and from aircraft carriers of the United States Navy. Its primary mission is carrier onboard delivery (COD). The aircraft p ...
for
carrier onboard delivery Carrier onboard delivery (COD) is the use of aircraft to ferry personnel, mail, supplies, and high-priority cargo, such as replacement parts, from shore bases to an aircraft carrier at sea. Several types of aircraft, including helicopters, have ...
(COD) duties. One advantage of the V-22 is the ability to deliver supplies and people between non-carrier ships beyond helicopter range. Proponents said that it is capable of similar speed, payload capacity, and lift performance to the C-2, and can carry greater payloads over short ranges, up to 20,000 lb, including suspended external loads. The C-2 can only deliver cargo to carriers, requiring further distribution to smaller vessels via helicopters, while the V-22 is certified for operating upon amphibious ships, aircraft carriers, and logistics ships. It could also take some helicopter roles by fitting a 600 lb hoist to the ramp and a cabin configuration for 12 non-ambulatory patients and 5 seats for medical attendants. Bell and P&W designed a frame for the V-22 to transport the
Pratt & Whitney F135 The Pratt & Whitney F135 is an afterburning turbofan developed for the Lockheed Martin F-35 Lightning II, a single-engine strike fighter. It has two variants; a Conventional Take-Off and Landing ( CTOL) variant used in the F-35A and F-35C, and a ...
engine of the
Lockheed Martin F-35 The Lockheed Martin F-35 Lightning II is an American family of single-seat, single-engine, all-weather stealth multirole combat aircraft that is intended to perform both air superiority and strike missions. It is also able to provide ele ...
.Israel could double V-22 order size, Bell says
– Flightglobal.com, 25 February 2014
On 5 January 2015, the Navy and USMC signed a memorandum of understanding to buy the V-22 for the COD mission. Initially designated HV-22, four aircraft were bought each year from 2018 to 2020. It incorporates an extended-range fuel system for an unrefueled range, a high-frequency radio for over-the-horizon communications, and a public address system to communicate with passengers; the range increase comes from extra fuel bladders through larger external
sponson Sponsons are projections extending from the sides of land vehicles, aircraft or watercraft to provide protection, stability, storage locations, mounting points for weapons or other devices, or equipment housing. Watercraft On watercraft, a spon ...
s, the only external difference from other variants. Its primary mission is long-range logistics; other conceivable missions include personnel recovery and special warfare. In February 2016, the Navy officially designated it as the ''CMV-22B''.V-22 Navy variant receives official designation
– United States Navy, 3 February 2016
The Navy's
Program of Record The processes of government procurement in the United States enable federal, state and local government bodies in the country to acquire goods, services (including construction), and interests in real property. In fiscal year 2019, the US Federal ...
originally called for 48 aircraft, it later determined that only 44 were required. Production began in FY 2018, and deliveries start in 2020.US Navy reveals CMV-22B as long-range Osprey designation
– Flightglobal.com, 4 February 2016.
Navy's Osprey Will Be Called CMV-22B; Procurement To Begin In FY 2018
– News.USNI.org, 5 February 2016.
The Navy ordered the first 39 CMV-22Bs in June 2018; initial operating capability is anticipated to be achieved in 2021, with fielding to the fleet by the mid-2020s. The first CMV-22B made its initial flight in December 2019. The first deployment began in summer 2021 aboard the USS ''Carl Vinson''.


Japan Self-Defense Forces

In 2012, former Defense Minister
Satoshi Morimoto is a Japanese politician, scholar and critic specializing in international politics and national security. He was Minister of Defense from July to December 2012, and is professor at Takushoku University and member of the Congressional Forum for ...
ordered an investigation of the costs of V-22 operations. The V-22's capabilities exceeded current
Japan Self-Defense Forces The Japan Self-Defense Forces ( ja, 自衛隊, Jieitai; abbreviated JSDF), also informally known as the Japanese Armed Forces, are the unified ''de facto''Since Article 9 of the Japanese Constitution outlaws the formation of armed forces, the ...
helicopters in terms of range, speed and payload. The ministry anticipated deployments to the
Nansei Islands The , also known as the or the , are a chain of Japanese islands that stretch southwest from Kyushu to Taiwan: the Ōsumi, Tokara, Amami, Okinawa, and Sakishima Islands (further divided into the Miyako and Yaeyama Islands), with Yonagun ...
and the Senkaku Islands, as well as in multinational cooperation with the U.S. In November 2014, the
Japanese Ministry of Defense The is an executive department of the Government of Japan responsible for preserving the peace and independence of Japan, and maintaining the country’s national security and the Japan Self-Defense Forces. The ministry is headed by the ...
decided to procure 17 V-22s. The first V-22 for Japan undertook its first flight in August 2017 and the aircraft began delivery to the Japanese military in 2020. In September 2018, the Japanese Ministry of Defense decided to delay the deployment of the first five MV-22Bs it had received amid opposition and ongoing negotiations in the
Saga Prefecture is a prefecture of Japan located on the island of Kyushu. Saga Prefecture has a population of 809,248 (1 August 2020) and has a geographic area of 2,440 km2 (942 sq mi). Saga Prefecture borders Fukuoka Prefecture to the northeast and Nagasak ...
, where the aircraft are to be based. On 8 May 2020, the first two of the five aircraft were delivered to the JGSDF at
Kisarazu Air Field is a military aerodrome of the Japan Ground Self-Defense Force . It is located north northwest of Kisarazu in the Chiba Prefecture, Japan. Operations JGSDF Kisarazu is home to the JGSDF 1st Helicopter Brigade, which is attached to the Centra ...
after failing to reach an agreement with Saga prefecture residents. It is planned to eventually station some V-22s on board the
Izumo-class helicopter destroyer The or 22DDH are aircraft carriers (originally helicopter carriers) in service with the Japan Maritime Self-Defense Force (JMSDF). The class is designated as a multi-purpose operation destroyer by the Japanese government due to limits on th ...
s.


Potential operators


India

In 2015, the Indian Aviation Research Centre showed interest in acquiring four V-22s for personnel evacuation in hostile conditions, logistic supplies, and deployment of the
Special Frontier Force The Special Frontier Force (SFF) is an Indian special operations unit created on 14 November 1962. It mainly comprised Tibetan refugees living in India. Now it has increased in size and scope of operations. Its primary goal originally was to ...
in border areas. US V-22s performed relief operations after the
April 2015 Nepal earthquake The April 2015 Nepal earthquake (also known as the Gorkha earthquake) killed 8,964 people and injured 21,952 more. It occurred at on Saturday, 25 April 2015, with a magnitude of 7.8 Mw or 8.1 Ms and a maximum Mercalli Intensity of X (''Extreme ...
. The Indian Navy also studied the V-22 rather than the E-2D for airborne early warning and control to replace the short-range Kamov Ka-31. India is interested in purchasing six attack version V-22s for rapid troop insertion in border areas.


Indonesia

On 6 July 2020, the U.S. State Department announced that they had approved a possible Foreign Military Sale to Indonesia of eight Block C MV-22s and related equipment for an estimated cost of $2 billion. The U.S. Defense Security Cooperation Agency notified Congress of this possible sale.


Israel

On 22 April 2013, an agreement was signed to sell six V-22 to the
Israeli Air Force The Israeli Air Force (IAF; he, זְרוֹעַ הָאֲוִיר וְהֶחָלָל, Zroa HaAvir VeHahalal, tl, "Air and Space Arm", commonly known as , ''Kheil HaAvir'', "Air Corps") operates as the aerial warfare branch of the Israel Defense ...
. By the end of 2016, Israel had not ordered the V-22 and was instead interested in buying the C-47 Chinook helicopter or the
CH-53K The Sikorsky CH-53K King Stallion (Sikorsky S-95) is a heavy-lift Transport helicopter, cargo helicopter designed and produced by Sikorsky Aircraft. The King Stallion is an evolution of the long running Sikorsky CH-53 Sea Stallion, CH-53 series ...
helicopter. As of 2017, Israel had frozen its evaluation of the V-22, "with a senior defence source indicating that the tiltrotor is unable to perform some missions currently conducted using its Sikorsky CH-53 transport helicopters."


Variants

;V-22A: Pre-production full-scale development aircraft used for flight testing. These are unofficially considered A-variants after the 1993 redesign.Norton 2004, p. 54. ;CV-22B: U.S. Air Force variant for the
U.S. Special Operations Command The United States Special Operations Command (USSOCOM or SOCOM) is the unified combatant command charged with overseeing the various special operations component commands of the Army, Marine Corps, Navy, and Air Force of the United States Arm ...
. It conducts long-range special operations missions and is equipped with extra wing fuel tanks, an AN/APQ-186
terrain-following radar Terrain-following radar (TFR) is a military aerospace technology that allows a very-low-flying aircraft to automatically maintain a relatively constant altitude above ground level and therefore make detection by enemy radar more difficult. It is ...
, and other equipment such as the AN/ALQ-211,"CV-22 Osprey Fact Sheet"
United States Air Force, 7 July 2006. Retrieved 21 August 2013.
Norton 2004, pp. 71–72. and AN/AAQ-24 Nemesis
Directional Infrared Counter Measures Directional Infrared Counter Measures (DIRCM) are a class of anti-missile systems produced to protect aircraft from infrared homing missiles, primarily MANPADS and similar simple systems. Earlier infrared countermeasures like flares or hot ...
. The fuel capacity is increased by 588 gallons (2,230 L) with two inboard wing tanks; three auxiliary tanks (200 or 430 gal) can also be added in the cabin.Norton 2004, pp. 100–01. The CV-22 replaced the
MH-53 Pave Low The Sikorsky MH-53 Pave Low series is a retired long-range special operations and combat search and rescue (CSAR) helicopter for the United States Air Force. The series was upgraded from the HH-53B/C, variants of the Sikorsky CH-53 Sea Stal ...
. ;MV-22B: U.S. Marine Corps variant. The Marine Corps is the lead service in the V-22's development. The Marine Corps variant is an assault transport for troops, equipment and supplies, capable of operating from ships or expeditionary airfields ashore. It replaced the Marine Corps'
CH-46E The Boeing Vertol CH-46 Sea Knight is a medium-lift tandem-rotor transport helicopter powered by twin turboshaft engines. It was designed by Vertol and manufactured by Boeing Vertol following Vertol's acquisition by Boeing. Development of th ...
and
CH-53D The CH-53 Sea Stallion (Sikorsky S-65) is an American family of heavy-lift transport helicopters designed and built by the American manufacturer Sikorsky Aircraft. It was originally developed in response to a request from the United States ...
fleets.Norton 2004, p. 77. ;CMV-22B: U.S. Navy variant for the carrier onboard delivery role. Similar to the MV-22B but includes an extended-range fuel system, a high-frequency radio, and a public address system. ;EV-22: Proposed airborne early warning and control variant. The
Royal Navy The Royal Navy (RN) is the United Kingdom's naval warfare force. Although warships were used by English and Scottish kings from the early medieval period, the first major maritime engagements were fought in the Hundred Years' War against F ...
studied this variant as a replacement for its current fleet of carrier-based Sea King ASaC.7 helicopters. ;HV-22: The U.S. Navy considered an HV-22 to provide combat search and rescue, delivery and retrieval of special warfare teams along with fleet logistic support transport. It chose the
MH-60S The Sikorsky SH-60/MH-60 Seahawk (or Sea Hawk) is a twin turboshaft engine, multi-mission United States Navy helicopter based on the United States Army UH-60 Black Hawk and a member of the Sikorsky S-70 family. The most significant modificatio ...
for this role in 2001.Norton 2004, pp. 26–28, 48, 83–84."V-22 Osprey Guidebook"
''Naval Air Systems Command, United States Navy'', 2011/2012, p. 5.
;SV-22: Proposed
anti-submarine warfare Anti-submarine warfare (ASW, or in older form A/S) is a branch of underwater warfare that uses surface warships, aircraft, submarines, or other platforms, to find, track, and deter, damage, or destroy enemy submarines. Such operations are t ...
variant. The U.S. Navy studied the SV-22 in the 1980s to replace S-3 and SH-2 aircraft.Norton 2004, pp. 28–30, 35, 48.


Operators

; *
Japan Self-Defense Forces The Japan Self-Defense Forces ( ja, 自衛隊, Jieitai; abbreviated JSDF), also informally known as the Japanese Armed Forces, are the unified ''de facto''Since Article 9 of the Japanese Constitution outlaws the formation of armed forces, the ...
(2 delivered, 3 on order, plans for 12 more) ; *
United States Air Force The United States Air Force (USAF) is the air service branch of the United States Armed Forces, and is one of the eight uniformed services of the United States. Originally created on 1 August 1907, as a part of the United States Army Signal ...
World Air Forces 2014, ''
FlightGlobal FlightGlobal is an online news and information website which covers the aviation and aerospace industries. The website was established in February 2006 as the website of ''Flight International'' magazine, ''Airline Business'', ''ACAS'', ''Air ...
'', January 2014.
**
7th Special Operations Squadron The 7th Special Operations Squadron is an active flying unit of the United States Air Force. It is a component of the 752d Special Operations Group (752 SOG), United States Special Operations Command, and is currently based at Royal Air Force ...
**
8th Special Operations Squadron The 8th Special Operations Squadron is a squadron of the United States Air Force. It is assigned to the 1st Special Operations Wing, Air Force Special Operations Command, stationed at Hurlburt Field, Florida. The squadron is equipped with the Be ...
** 20th Special Operations Squadron ** 21st Special Operations Squadron **
71st Special Operations Squadron The 71st Special Operations Squadron is part of the 58th Special Operations Wing at Kirtland Air Force Base, New Mexico. It operates Bell Boeing CV-22 Osprey conducting special operations flying training. Mission Provide Combat Ready CV-22 Ai ...
**
418th Flight Test Squadron The 418th Flight Test Squadron is a United States Air Force squadron. It is assigned to the 412th Operations Group, Air Force Materiel Command, stationed at Edwards Air Force Base, California. The first predecessor of the squadron was acti ...
*
United States Marine Corps The United States Marine Corps (USMC), also referred to as the United States Marines, is the maritime land force service branch of the United States Armed Forces responsible for conducting expeditionary and amphibious operations through combi ...
** HMX-1 **
VMX-22 Marine Operational Test and Evaluation Squadron One (VMX-1) is a United States Marine Corps operational test squadron consisting of multiple aircraft types. The squadron is based at Marine Corps Air Station Yuma, Arizona. VMX-22 stood up in August ...
**
VMM-161 Marine Medium Tiltrotor Squadron 161 (VMM-161) is a United States Marine Corps tiltrotor squadron that operates the MV-22 Osprey. The squadron, known as the "Greyhawks", is based at Marine Corps Air Station Miramar, California and falls under the ...
**
VMM-162 Marine Medium Tiltrotor Squadron 162 (VMM-162) is a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "Golden Eagles", is based at Marine Corps Air Station New River, North Caro ...
**
VMM-163 Marine Medium Tiltrotor Squadron 163 (VMM-163) is a United States Marine Corps helicopter squadron consisting of MV-22 Osprey transport tiltrotors. The squadron, known as "Evil Eyes", is based at Marine Corps Air Station Miramar, California and ...
**
VMM-165 Marine Medium Tilt Rotor Squadron 165 (VMM-165) is a United States Marine Corps Tilt-rotor squadron consisting of MV-22B Osprey transport aircraft. The squadron, known as the "White Knights", is based at Marine Corps Air Station Miramar, Californ ...
**
VMM-166 Marine Medium Tiltrotor Squadron 166 (VMM-166) was a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "SeaElk", was last based at Marine Corps Air Station Miramar, California. ...
**
VMMT-204 Marine Medium Tiltrotor Training Squadron 204 (VMMT-204) is the MV-22 Osprey training squadron of the United States Marine Corps. Known as the "Raptors", the squadron was originally designated Marine Medium Helicopter Training Squadron 204 (HMT-204 ...
**
VMM-261 Marine Medium Tiltrotor Squadron 261 (VMM-261) is a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "Raging Bulls", is based at Marine Corps Air Station (MCAS) New River, No ...
**
VMM-263 Marine Medium Tiltrotor Squadron 263 (VMM-263) is a United States Marine Corps tiltrotor squadron consisting of MV-22B Osprey transport aircraft. The squadron, known as the "Thunder Chickens", is based at Marine Corps Air Station New River, North ...
**
VMM-264 Marine Medium Tiltrotor Squadron 264 (VMM-264) was a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey transport aircraft. The squadron, known as the "Black Knights", was based at Marine Corps Air Station New River, North C ...
** VMM-266 **
VMM-362 Marine Medium Tiltrotor Squadron 362 (VMM-362) is a United States Marine Corps squadron that operates MV-22 Osprey. The squadron, known as the "Ugly Angels", was reactivated on 17 August 2018 at Marine Corps Air Station Miramar, California. Missi ...
**
VMM-363 Marine Medium Tiltrotor Squadron 363 (VMM-363) is a United States Marine Corps tiltrotor squadron consisting of MV-22 Osprey, MV-22B Ospreys. The squadron, known as the "Lucky Red Lions", is based at Marine Corps Air Station Kaneohe Bay, MCB Hawa ...
**
VMM-365 Marine Medium Tiltrotor Squadron 365 (VMM-365) is a United States Marine Corps tiltrotor squadron consisting of MV-22B Osprey transport aircraft. The squadron, known as the "Blue Knights", is based at Marine Corps Air Station New River, North Car ...
**
VMM-561 Marine Medium Tiltrotor Squadron 561 (VMM-561) was a medium-lift squadron of the United States Marine Corps flying the Bell-Boeing V-22 Osprey. Known as the " Pale Horse", it was part of Marine Aircraft Group 16 and based out of Marine Corps Air ...
*
United States Navy The United States Navy (USN) is the maritime service branch of the United States Armed Forces and one of the eight uniformed services of the United States. It is the largest and most powerful navy in the world, with the estimated tonnage ...
– 44 CVM-22Bs on order, with deliveries to start in 2020. **
HX-21 Air Test and Evaluation Squadron TWO ONE (HX-21) "Blackjack" is a U.S. Navy aircraft squadron located at Naval Air Station Patuxent River, Maryland on the Chesapeake Bay. As part of the Naval Air Warfare Center Aircraft Division (NAWC-AD), Naval T ...
**
VRM-30 VRM-30 is a Fleet Logistics Multi-Mission Squadron of the United States Navy. The squadron was established on December 14, 2018 at Naval Air Station North Island, California but did not gain any aircraft until June 22, 2020, the aircraft being a C ...


Accidents

The V-22 Osprey has had 13 hull-loss accidents with a total of 51 fatalities. During testing from 1991 to 2000, there were four crashes resulting in 30 fatalities. Since becoming operational in 2007, the V-22 has had eight crashes resulting in 16 fatalities and several minor incidents. The aircraft's accident history has generated some controversy over its perceived safety issues.


Aircraft on display

* 163911 – V-22A on display at the Aviation Memorial at
Marine Corps Air Station New River Marine Corps Air Station New River is a United States Marine Corps helicopter and tilt-rotor base in Jacksonville, North Carolina, in the eastern part of the state. In 1972, the airfield was named McCutcheon Field for General Keith B. McCutcheon ...
in
Jacksonville, North Carolina Jacksonville is a city in Onslow County, North Carolina, United States. As of the 2020 census, the population was 72,723, which makes Jacksonville the 14th-largest city in North Carolina. Jacksonville is the county seat and most populous commu ...
. * 163913 – V-22A on display at the American Helicopter Museum & Education Center in
West Chester, Pennsylvania West Chester is a borough and the county seat of Chester County, Pennsylvania. Located within the Philadelphia metropolitan area, the borough had a population of 18,461 at the 2010 census. West Chester is the mailing address for most of its neighb ...
. * 99-0021 (formerly 164939) – CV-22B on display at the
National Museum of the United States Air Force The National Museum of the United States Air Force (formerly the United States Air Force Museum) is the official museum of the United States Air Force located at Wright-Patterson Air Force Base, northeast of Dayton, Ohio. The NMUSAF is the ...
at Wright-Patterson AFB in
Dayton, Ohio Dayton () is the sixth-largest city in the U.S. state of Ohio and the county seat of Montgomery County. A small part of the city extends into Greene County. The 2020 U.S. census estimate put the city population at 137,644, while Greater Day ...
. * 164940 – MV-22B on display at the
Patuxent River Naval Air Museum The Patuxent River Naval Air Museum is a museum at Lexington Park, Maryland, first opened in 1978, which preserves and interprets the Naval Air Station Patuxent River history and heritage of advancing US naval aviation technology with artifacts, ...
in
Lexington Park, Maryland Lexington Park is a census-designated place (CDP) in St. Mary's County, Maryland, United States, and the principal community of the Lexington Park, Maryland Micropolitan Statistical Area. The population was 11,626 at th2010 census History Nati ...
.


Specifications (MV-22B)


Notable appearances in media


See also


References


Bibliography

*Markman, Steve and Bill Holder. "Bell/Boeing V-22 Osprey Tilt-Engine VTOL Transport (U.S.A.)". ''Straight Up: A History of Vertical Flight''. Atglen, Pennsylvania: Schiffer Publishing, 2000. . *Norton, Bill. ''Bell Boeing V-22 Osprey, Tiltrotor Tactical Transport''. Earl Shilton, Leicester, UK: Midland Publishing, 2004. . *O'Hanlon, Michael E
''Defense Policy Choices for the Bush Administration''
Washington, D.C.: Brookings Institution Press, 2002. . *Schinasi, Katherine V
''Defense Acquisitions: Readiness of the Marine Corps' V-22 Aircraft for Full-Rate Production''
Darby, Pennsylvania: Diane Publishing, 2008. . *Whittle, Richard
''The Dream Machine: The Untold History of the Notorious V-22 Osprey''
New York: Simon & Schuster, 2010. .


External links


Official Boeing V-22 siteOfficial Bell V-22 site"The V-22 Osprey", Documentary on the V-22 In Iraq"Flight of the Osprey", U.S. Navy video of V-22 operations
{{Good article Tiltrotor aircraft
V-22 The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a convention ...
V-22 The Bell Boeing V-22 Osprey is an American multi-mission, tiltrotor military aircraft with both vertical takeoff and landing (VTOL) and short takeoff and landing (STOL) capabilities. It is designed to combine the functionality of a convention ...
Boeing V-22 High-wing aircraft Turboshaft-powered aircraft Articles containing video clips Aircraft first flown in 1989