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On 11 December 1951, the Kaman K-225 became the first turbine-powered helicopter in the world. Two years later, on 26 March 1954, a modified Navy HTK-1, another Kaman helicopter, became the first twin-turbine helicopter to fly. [97] However, it was the Sud Aviation Alouette II that would become the first helicopter to be produced with a turbine ...
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 the United Kingdom's Royal Air Force and Royal Navy. In U.S. Navy and U.S. Coast Guard service, the helicopter was known as the Sikorsky HNS-1.
General Corradino D'Ascanio (1 February 1891 in Popoli, Pescara – 6 August 1981 in Pisa) was an Italian aeronautical engineer.D'Ascanio designed the first production helicopter, for Agusta, and designed the first motor scooter for Ferdinando Innocenti.
The K-125 was Charles Kaman's first helicopter, which utilized intermeshing rotors and Kaman's patented servo-flap stability control. [1] The K-125 first flew on 15 January 1947. The K-190 and K-225 were an improved versions of the K-125, which first flew in April and July 1949 respectively.
The Focke-Wulf Fw 61 was the first successful, practical, and fully controllable helicopter, first flown in 1936. [ 2 ] [ 3 ] [ 4 ] It was also known as the Fa 61 , as Focke began a new company— Focke-Achgelis —in 1937.
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.
Focke-Wulf constructed Juan de la Cierva's C.19 and C.30 autogyros under license from 1933, and Focke was inspired by it to design the world's first practical helicopter, the Focke-Wulf Fw 61, which first flew on 26 June 1936 by Hanna Reitsch. In the Deutschlandhalle arena in 1938, it also became the first practical helicopter to be flown indoors.
The first "free" flight of the VS-300 was on 13 May 1940. [2] The VS-300 was the first successful single lifting rotor helicopter in the United States and the first successful helicopter to use a single vertical-plane tail rotor configuration for antitorque. With floats attached, it became the first practical amphibious helicopter.