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XF2R Dark Shark
The Ryan XF2R Dark Shark was an American experimental aircraft built for the United States Navy that combined turboprop and turbojet propulsion. It was based on Ryan Aeronautical's earlier FR Fireball, but replaced the Fireball's piston engine with a turboprop engine. Design and development The XF2R Dark Shark was based on Ryan Aeronautical's earlier FR Fireball, but replaced the Fireball's piston engine with a General Electric T31 turboprop engine driving a 4-bladed Hamilton Standard propeller. The turboprop made for much improved performance over the Fireball, but the Navy showed little interest in it; by that time, they had abandoned the idea of the combination fighter and were instead looking into all-jet fighters. The United States Air Force, however, showed a little more interest; they were at the time evaluating the Convair XP-81 of similar concept, and asked Ryan to modify the XF2R to use the Westinghouse J34 turbojet instead of the General Electric J31 used previously ...
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WikiProject Aircraft
A WikiProject, or Wikiproject, is a Wikimedia movement affinity group for contributors with shared goals. WikiProjects are prevalent within the largest wiki, Wikipedia, and exist to varying degrees within sister projects such as Wiktionary, Wikiquote, Wikidata, and Wikisource. They also exist in different languages, and translation of articles is a form of their collaboration. During the COVID-19 pandemic, CBS News noted the role of Wikipedia's WikiProject Medicine in maintaining the accuracy of articles related to the disease. Another WikiProject that has drawn attention is WikiProject Women Scientists, which was profiled by '' Smithsonian'' for its efforts to improve coverage of women scientists which the profile noted had "helped increase the number of female scientists on Wikipedia from around 1,600 to over 5,000". On Wikipedia Some Wikipedia WikiProjects are substantial enough to engage in cooperative activities with outside organizations relevant to the field at issue. For e ...
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NACA Duct
A NACA duct, also sometimes called a NACA scoop or NACA inlet, is a common form of low- drag air inlet design, originally developed by the U.S. National Advisory Committee for Aeronautics (NACA), the precursor to NASA, in 1945. Design Prior submerged inlet experiments showed poor pressure recovery due to the slow-moving boundary layer entering the inlet. The NACA design is believed to work because the combination of the gentle ramp angle and the curvature profile of the walls creates counter-rotating vortices which deflect the boundary layer away from the inlet and draws in the faster moving air, while avoiding the form drag and flow separation that can occur with protruding scoop designs. Aircraft applications When properly implemented, a NACA duct allows air to flow into an internal duct, often for cooling purposes, with a minimal disturbance to the flow. The design was originally called a submerged inlet, since it consists of a shallow ramp with curved walls recessed into ...
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Ryan Aircraft
Ryan may refer to: People and fictional characters *Ryan (given name), a given name (including a list of people with the name) *Ryan (surname), a surname (including a list of people with the name) Places Australia * Division of Ryan, an electoral district in the Australian House of Representatives, in Queensland *Ryan, New South Wales * Ryan, Queensland, a suburb of the City of Mount Isa United States *Ryan, California *Ryan, former name of Lila C, California *Ryan, Iowa * Ryan, Minnesota * Ryan, Illinois *Ryan, Oklahoma *Ryan, Washington *Ryan, West Virginia *Ryan Park, Wyoming *Ryan Township, Schuylkill County, Pennsylvania Film, radio, television and web * ''Ryan'' (film), an animated documentary * ''Ryan'' (TV series), 1970s Australian TV series *''Von Ryan's Express'', a 1965 World War II adventure film Other uses *Ryan M-1, an airplane * Ryan Aeronautical Company (Claude Ryan) *Ryanair (Tony Ryan) * Ryan Field (other) * Ryan International Airlines (Ron Ryan) * R ...
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1940s United States Fighter Aircraft
Year 194 ( CXCIV) was a common year starting on Tuesday (link will display the full calendar) of the Julian calendar. At the time, it was known as the Year of the Consulship of Septimius and Septimius (or, less frequently, year 947 '' Ab urbe condita''). The denomination 194 for this year has been used since the early medieval period, when the Anno Domini calendar era became the prevalent method in Europe for naming years. Events By place Roman Empire * Emperor Septimius Severus and Decimus Clodius Septimius Albinus Caesar become Roman Consuls. * Battle of Issus: Septimius Severus marches with his army (12 legions) to Cilicia, and defeats Pescennius Niger, Roman governor of Syria. Pescennius retreats to Antioch, and is executed by Severus' troops. * Septimius Severus besieges Byzantium (194–196); the city walls suffer extensive damage. Asia * Battle of Yan Province: Warlords Cao Cao and Lü Bu fight for control over Yan Province; the battle lasts for over 1 ...
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List Of Military Aircraft Of The United States
Lists of military aircraft of the United States cover current and former aircraft of the United States Armed Forces. By designation * List of United States Air Force aircraft designations (1919–1962) * List of United States Navy aircraft designations (pre-1962) * List of United States Army aircraft designations (1956–1962) * List of United States Tri-Service aircraft designations * List of U.S. DoD aircraft designations * List of undesignated military aircraft of the United States Other lists * List of active United States military aircraft * List of United States military helicopters * List of aircraft of the United States during World War II *Future military aircraft of the United States * List of U.S. DoD aircraft designations *List of currently active United States naval aircraft *List of active United States Air Force aircraft *List of military aircraft of the United States *UAVs in the U.S. military External links OrBat United States of America – MilAvia Press.c ...
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List Of United States Navy Aircraft Designations (pre-1962)
This list of United States Navy aircraft designations (pre-1962) includes prototype, pre-production and operational type designations under the 1922 United States Navy aircraft designation system, which was used by the United States Navy, the United States Marine Corps, and the United States Coast Guard. The list also includes airships, which were designated under different systems than fixed-wing aircraft and rotorcraft until 1954, and naval aircraft that received designations under the 1911 and 1914 U.S. Navy systems, which were sequential by manufacturer and/or aircraft class, and did not convey information about the aircraft's mission. For aircraft designations under the U.S. Army Air Force/U.S. Air Force system or the post-1962 Tri-Service system—which includes U.S. Navy, Marine Corps and Coast Guard aircraft currently in service—see List of military aircraft of the United States. For Navy, Marine Corps and Coast Guard aircraft that did not receive formal designationsâ ...
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List Of Fighter Aircraft
This is a list of military aircraft that are primarily designed for air-to-air combat and thus does not include aircraft intended for other roles where they have some secondary air-to-air capability, such as with many ground attack aircraft. The list does not include projects that were cancelled before an aircraft was built or fictional aircraft. List , - , ACAZ C.2, , Belgium, , Two-seat fighter, , 1926, , Prototype, , , , , - , Adamoli-Cattani fighter, , Italy, , , , 1918, , Prototype, , , , , - , AD Scout, , UK, , Zeppelin interceptor, , 1915, , Prototype, , , , , - , AEG D.I, D.II & D.III, , Germany, , , , 1917, , Prototype, , , , , - , AEG Dr.I, , Germany, , , , 1917, , Prototype, , , , , - , Aerfer Ariete, , Italy, , , , 1958, , Prototype, , , , , - , Aerfer Sagittario 2, , Italy, , Lightweight fighter, , 1956, , Prototype, , , , , - , Aero Ae 02, , Czechoslovakia, , , , 1920, , Prototype, , , , , - , Aero Ae 04, , Czechoslovakia, , , , 1921, , Prototype, , , , ...
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Grumman XTB3F Guardian
The Grumman AF Guardian was the first purpose-built anti-submarine warfare (ASW) carrier-based aircraft to enter service with the United States Navy.Kowalski 1991, p. 3. It consisted of two airframe variants, one for detection gear, the other for weapons. The Guardian remained in service until August 1955, when it was replaced by the twin-engined Grumman S-2 Tracker. The Guardian was the largest single-engine piston-powered carrier aircraft ever to see service. Design and development The original design concept for the aircraft that would become the Guardian, the XTB2F of 1944, was for a twin-engined aircraft with a warload and a range of 3,700 mi (5,950 km).Kowalski 1991, pp. 2–3. This was considered to be too large for practical use from an , and was cancelled in 1945, replaced by a modified Grumman F7F Tigercat, the XTSF-1. However, this too was considered impractical, and another alternative, the internally developed Grumman Model G-70, was selected instead, ...
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Curtiss XF15C
The Curtiss XF15C-1 is a mixed-propulsion fighter prototype of the 1940s. It was among a number of similar designs ordered by the US Navy before pure-jet aircraft had demonstrated their ability to operate from carriers and the mixed-propulsion designs were abandoned. Only three prototypes were constructed, the first one having crashed in testing while the second was scrapped and the last survives to this day. Development By the late 1940s, the United States Navy was interested in the mixed-power concept for its shipborne fighters. Jet engines of that era had very slow throttle response, which presented a safety concern in the case of a missed approach on an aircraft carrier as the aircraft might not be able to throttle up quickly enough to keep flying after leaving the end of the deck. This led to orders for a number of mixed-propulsion fighters, including the FR Fireball. As such, an order was placed with Curtiss on 7 April 1944 for delivery of three mixed-power aircraft, desig ...
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M2 Browning
The M2 machine gun or Browning .50 caliber machine gun (informally, "Ma Deuce") is a heavy machine gun that was designed towards the end of World War I by John Browning. Its design is similar to Browning's earlier M1919 Browning machine gun, which was chambered for the .30-06 cartridge. The M2 uses Browning's larger and more powerful .50 BMG (12.7 mm) cartridge. The design has had many designations; the official U.S. military designation for the current infantry type is Browning Machine Gun, Cal. .50, M2, HB, Flexible. It is effective against infantry, unarmored or lightly armored vehicles and boats, light fortifications, and low-flying aircraft. The gun has been used extensively as a vehicle weapon and for aircraft armament by the United States since the 1930s. It was heavily used during World War II, the Korean War, the Vietnam War, the Falklands War, the Soviet–Afghan War, the Gulf War, the Iraq War, and the War in Afghanistan. It is the primary heavy machine gun of NATO ...
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Centrifugal-flow Turbojet
The turbojet is an airbreathing jet engine which is typically used in aircraft. It consists of a gas turbine with a propelling nozzle. The gas turbine has an air inlet which includes inlet guide vanes, a compressor, a combustion chamber, and a turbine (that drives the compressor). The compressed air from the compressor is heated by burning fuel in the combustion chamber and then allowed to expand through the turbine. The turbine exhaust is then expanded in the propelling nozzle where it is accelerated to high speed to provide thrust. Two engineers, Frank Whittle in the United Kingdom and Hans von Ohain in Germany, developed the concept independently into practical engines during the late 1930s. Turbojets have poor efficiency at low vehicle speeds, which limits their usefulness in vehicles other than aircraft. Turbojet engines have been used in isolated cases to power vehicles other than aircraft, typically for attempts on land speed records. Where vehicles are "turbine-powere ...
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