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The Sikorsky R-4 is a two-seat helicopter that was designed by Igor Sikorsky with a single, three-bladed main rotor and powered by a radial engine. The R-4 was the world's first large-scale mass-produced helicopter and the first helicopter used by the United States Army Air Forces, [1] the United States Navy, the United States Coast Guard and ...
Avro 671 "Rota" Mk.1 (licence-built Cierva C.30 A) (general purpose autogyro - used for radar station testing) Bristol "Heliogyro" RI/II (experimental helicopter) Cierva W.5 - 2-seater twin outrigger rotor helicopter, first flight 1938. Cierva W.6 - twin rotor helicopter, flown in 1939.
used as the official helicopters of the President of the United States Marine One. 1959. 1961. 1500. Sikorsky S-61R. Medium-lift transport/SAR helicopter. Sikorsky Aircraft Corporation. The S-61R served in the United States Air Force and in the United States Coast Guard. 1959.
The Korean war was the first time the helicopter was used extensively in a conflict. [107] While helicopters such as the Sikorsky YR-4 were used in World War II, [109] their use was rare, and Jeeps like the Willys MB were the main method of removing an injured soldier.
Attack helicopter. A British AgustaWestland Apache helicopter fires rockets at insurgents in Afghanistan, June 2008. An attack helicopter is an armed helicopter with the primary role of an attack aircraft, with the offensive capability of engaging ground targets such as enemy infantry, military vehicles and fortifications.
1941. First flight. 3 August 1940. The Focke-Achgelis Fa 223 Drache (English: Dragon[1]) was a helicopter developed by Germany during World War II. A single 750-kilowatt (1,010 hp) Bramo 323 radial engine powered two three-bladed 11.9-metre (39 ft) rotors mounted on twin booms on either side of the 12.2-metre-long (40 ft) cylindrical fuselage.
During World War II, Flettner Fl 282s were used in Germany for reconnaissance, and Sikorsky R-4s were used by the United States to rescue downed aircrews and injured personnel in remote areas of the China Burma India Theater, from April 1944 until the war's end. The use of helicopters for rescue during combat increased during the Korean War and ...
The first United States use of the armed helicopter in large-scale combat operations was during the Vietnam War. First the U.S. Army modified UH-1B 'Huey' helicopters, mounting machine guns and Folding Fin Aerial Rockets (FFAR) on struts parallel with the fuselage. Eventually, the U.S. Army would upgrade the engine and rotor to the UH-1C model ...