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OV-1
The Grumman OV-1 Mohawk is an armed military observation and attack aircraft that was designed for battlefield surveillance and light strike capabilities. It has a twin turboprop configuration, and carries two crew members in side-by-side seating. The Mohawk was intended to operate from short, unimproved runways in support of United States Army maneuver forces. Development The Mohawk began as a joint Army-Marine program through the then-Navy Bureau of Aeronautics (BuAer), for an observation/attack plane that would outperform the Cessna L-19 Bird Dog. In June 1956, the Army issued Type Specification TS145, which called for the development and procurement of a two-seat, twin turboprop aircraft designed to operate from small, unimproved fields under all weather conditions. It would be faster, with greater firepower, and heavier armour than the Bird Dog, which had proved vulnerable during the Korean War. The Mohawk's mission would include observation, artillery spotting, air contro ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
North American Rockwell OV-10 Bronco
The North American Rockwell OV-10 Bronco is an American twin-turboprop light attack and observation aircraft. It was developed in the 1960s as a special aircraft for counter-insurgency (COIN) combat, and one of its primary missions was as a forward air control (FAC) aircraft. It can carry up to 3,200 lb (1,450 kg) of external munitions and internal loads such as paratroopers or stretchers, and can loiter for three or more hours. Development Background The aircraft was initially conceived in the early 1960s through an informal collaboration between W.H. Beckett and Colonel K.P. Rice, U.S. Marine Corps, who met at Naval Air Weapons Station China Lake, California, and who also happened to live near each other. The original concept was for a rugged, simple, close air support aircraft integrated with forward ground operations. At the time, the U.S. Army was still experimenting with armed helicopters, and the U.S. Air Force was not interested in close air support. The conce ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Cessna O-1 Bird Dog
The Cessna L-19/O-1 Bird Dog is a liaison and observation aircraft. It was the first all-metal fixed-wing aircraft ordered for and by the United States Army following the Army Air Forces' separation from it in 1947. The Bird Dog had a lengthy career in the U.S. military, as well as in other countries. Design and development The U.S. Army was searching for an aircraft that could adjust artillery fire, as well as perform liaison duties, and preferably be constructed of all metal, as the fabric-covered liaison aircraft used during World War II (primarily Stinson and Piper products) had short service lives. After the specification for a two-seat liaison and observation monoplane was issued the Cessna Aircraft Company submitted the Cessna Model 305A, a development of the Cessna 170. The Cessna 305A was a single-engine, lightweight, strut-braced, high-wing monoplane with a tailwheel landing gear. The greatest difference from the Cessna 170 was that the 305A had only two seats, in ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Lycoming T53
The Lycoming T53, (company designation LTC-1) is a turboshaft engine used on helicopters and (as a turboprop) fixed-wing aircraft since the 1950s. It was designed at the Lycoming Turbine Engine Division in Stratford, Connecticut, by a team headed by Anselm Franz, who was the chief designer of the Junkers Jumo 004 during World War II. A much larger engine, similar in overall design, became the Lycoming T55 produced by Honeywell Aerospace. The T53 model is produced by Ozark Aeroworks LLC. Variants Military designations ;T53-L-1 : ;T53-L-1A : 770 hp (645 kW) ;T53-L-1B : 860 hp (645 kW) ;T53-L-3 : ;T53-L-5 : 960 hp (720 kW) ;T53-L-7 : ;T53-L-11 : 1100 hp (820 kW) ;T53-L-13 : ;T53-L-13B : 1400 shp (1044 kW) improved L-11 ;T53-L-701 : 1,400 hp (1044 kW) Turboprop variant used on Mohawk and AIDC T-CH-1 ;T53-L-703 : 1,800 hp (1343 kW) improved durability variant of the L-13B Civil designations ;T5307A :commercial L-7 ;T5309A :commercial L-9A ;T5309B :commercial L-9B ;T5309C :simi ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
United States Army Europe
United States Army Europe and Africa (USAREUR-AF) is an Army Service Component Command (ASCC) /Theater Army responsible for directing United States Army operations throughout the U.S. European Command (EUCOM) and U.S. Africa Command (AFRICOM) area of responsibility. During the Cold War, it supervised ground formations primarily focused upon the Warsaw Pact to the east as part of NATO's Central Army Group. Since the revolutions of 1989, it has greatly reduced its size, dispatched U.S. forces to the Gulf Wars of 1990-91 and the 2003 invasion of Iraq, the Kosovo War, the War in Afghanistan (2001–2021) and increased security cooperation with other NATO land forces. In 2020, the Army announced that United States Army Africa would consolidate with U.S. Army Europe to form a new command, U.S. Army Europe and Africa. The two commands were consolidated on November 20, 2020. History World War II The European Theater of Operations, United States Army (ETOUSA) was a Theater of Ope ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 with Northrop Corporation to form Northrop Grumman. History Leroy Grumman worked for the Loening Aircraft Engineering Corporation beginning in 1920. In 1929, Keystone Aircraft Corporation bought Loening Aircraft and moved its operations from New York City to Bristol, Pennsylvania. Grumman and three other ex-Loening Aircraft employees,Jordan, Corey C"Grumman's Ascendency: Chapter One." ''Planes and Pilots Of World War 2,'' 2000. Retrieved: July 22, 2011. (Edmund Ward Poor, William Schwendler, and Jake Swirbul) started their own company in an old Cox-Klemin Aircraft Co. factory in Baldwin on Long Island, New York. The company registered as a business on December 6, 1929, and officially opened on January 2, 1930. While maintaining the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Argentine Army Aviation
The Argentine Army Aviation ( es, Comando de Aviación de Ejército, AvEj) is the army aviation branch of the Argentine Army. Their members have the same rank insignia and titles as the rest of the Army. Along with its primary role of supporting Army operations, the Army Aviation is highly involved in humanitarian aid missions, emergency relief, medical evacuations and forest firefighting. History Military aviation in Argentina traces back to the Paraguayan War when, on 8 July 1867, Staff Sergeant Roberto A. Chodasiewicz used an observation balloon during the battle of Humaitá. Since then, the army was the main driving force behind national aeronautical development. The use of enthusiastic students who relied on the selfless support of civil institutions and air clubs, saw the creation of the Military Aviation School at El Palomar in 1912. The establishment of the Army Aviation Service (in Spanish, ''Servicio de Aviación del Ejército'') saw a great expansion of Argentine ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 is then added to the compressed air in the combustor, where the fuel-air mixture then combusts. The hot combustion gases expand through the turbine stages, generating power at the point of exhaust. Some of the power generated by the turbine is used to drive the compressor and electric generator. The gases are then exhausted from the turbine. In contrast to a turbojet or turbofan, the engine's exhaust gases do not provide enough energy to create significant thrust, since almost all of the engine's power is used to drive the propeller. Technological aspects Exhaust thrust in a turboprop is sacrificed in favor of shaft power, which is obtained by extracting additional power (beyond that necessary to drive the compressor) from turbine ex ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Grumman OV-1 Mohawk Proposed Variants Silhouettes
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 with Northrop Corporation to form Northrop Grumman. History Leroy Grumman worked for the Loening Aircraft Engineering Corporation beginning in 1920. In 1929, Keystone Aircraft Corporation bought Loening Aircraft and moved its operations from New York City to Bristol, Pennsylvania. Grumman and three other ex-Loening Aircraft employees,Jordan, Corey C"Grumman's Ascendency: Chapter One." ''Planes and Pilots Of World War 2,'' 2000. Retrieved: July 22, 2011. (Edmund Ward Poor, William Schwendler, and Jake Swirbul) started their own company in an old Cox-Klemin Aircraft Co. factory in Baldwin on Long Island, New York. The company registered as a business on December 6, 1929, and officially opened on January 2, 1930. While maintaining the ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Ducted Fan
In aeronautics, a ducted fan is a thrust-generating mechanical fan or propeller mounted within a cylindrical duct or shroud. Other terms include ducted propeller or shrouded propeller. When used in vertical takeoff and landing (VTOL) applications it is also known as a shrouded rotor.Kotwani, Kailash;Ducted Fan or Shrouded Rotor Aerodynamics and its Application in Miniature VTOL Aerial Vehicles, 2009. (retrieved 22 March 2022). Ducted fans are used for propulsion or direct lift in many types of vehicle including aeroplanes, airships, hovercraft, and powered lift VTOL aircraft. The high-bypass turbofan engines used on many modern airliners is an example of a very successful and popular use of ducted fan design. The duct increases thrust efficiency by up to 90% in some cases, in comparison to a similar-sized propeller in free air. Ducted fans are quieter, and offer good opportunities for thrust vectoring. The shroud offers good protection to ground personnel from accidentally cont ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Signals Intelligence
Signals intelligence (SIGINT) is intelligence-gathering by interception of ''signals'', whether communications between people (communications intelligence—abbreviated to COMINT) or from electronic signals not directly used in communication (electronic intelligence—abbreviated to ELINT). Signals intelligence is a subset of intelligence collection management. As classified and sensitive information is usually encrypted, signals intelligence in turn involves the use of cryptanalysis to decipher the messages. Traffic analysis—the study of who is signaling whom and in what quantity—is also used to integrate information again. History Origins Electronic interceptions appeared as early as 1900, during the Boer War of 1899–1902. The British Royal Navy had installed wireless sets produced by Marconi on board their ships in the late 1890s, and the British Army used some limited wireless signalling. The Boers captured some wireless sets and used them to make vital transmis ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
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 typically fully capable of VTOL operations.Markman, Steve and Bill Holder. "Tilt-Wing VTOL Systems". ''Straight Up: A History of Vertical Flight''. Schiffer Publishing, 2000. . The tiltwing design offers certain advantages in vertical flight relative to a tiltrotor. Because the slipstream from the rotor strikes the wing on its smallest dimension, the tiltwing is able to apply more of its engine power to lifting the aircraft. For comparison, the V-22 Osprey tiltrotor loses about 10% of its thrust to interference from the wings. Another advantage of tiltwing aircraft is the ease of transition between VTOL and horizontal flight modes. A tiltrotor must first fly forwards like a helicopter, building airspeed until wing lift is sufficient to allow ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
Aircraft
An aircraft is a vehicle that is able to fly by gaining support from the air. It counters the force of gravity by using either static lift or by using the dynamic lift of an airfoil, or in a few cases the downward thrust from jet engines. Common examples of aircraft include airplanes, helicopters, airships (including blimps), gliders, paramotors, and hot air balloons. The human activity that surrounds aircraft is called ''aviation''. The science of aviation, including designing and building aircraft, is called '' aeronautics.'' Crewed aircraft are flown by an onboard pilot, but unmanned aerial vehicles may be remotely controlled or self-controlled by onboard computers. Aircraft may be classified by different criteria, such as lift type, aircraft propulsion, usage and others. History Flying model craft and stories of manned flight go back many centuries; however, the first manned ascent — and safe descent — in modern times took place by larger hot-air ... [...More Info...] [...Related Items...] OR: [Wikipedia] [Google] [Baidu] |
