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A helicopter is a type of rotorcraft in which lift and thrust are supplied by horizontally spinning ... a French inventor who demonstrated a small steam-powered model ...
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.
Arthur Middleton Young (November 3, 1905 – May 30, 1995) was an American inventor, helicopter pioneer, philosopher, astrologer, and author.Young was the designer of Bell Helicopter's first helicopter, the Model 30, and inventor of the stabilizer bar used on many of Bell's early helicopter designs.
Igor Sikorsky was born in Kiev, Russian Empire (now Kyiv, Ukraine), on May 25, 1889. [6] [10] [11] He was the youngest of five children.His father, Ivan Alexeevich Sikorsky, was a professor of psychology in Saint Vladimir University (now Taras Shevchenko National University), a psychiatrist with an international reputation, and an ardent Russian nationalist.
Juan de la Cierva's work on rotor-wing dynamics made possible the modern helicopter, whose development as a practical means of flight had been prevented by a lack of understanding of these matters. The understanding that he established is applicable to all rotor-winged aircraft; though lacking true vertical flight capability, work on the ...
The Cornu helicopter was an experimental helicopter built in France, and is widely credited with the first free flight of a rotary-wing aircraft when it took to the air on 13 November 1907. Built by bicycle -maker Paul Cornu , it was an open-framework structure built around a curved steel tube that carried a rotor at either end, and the engine ...
Raúl Pateras Pescara, 1922. Raúl Pateras Pescara de Castelluccio (1890 – 1966), marquis of Pateras-Pescara, was an engineer, lawyer and inventor from Argentina who specialized in automobiles, helicopters and free-piston engines.
Frank Nicolas Piasecki (/ p iː ə ˈ s ɛ k i / pee-ə-SEK-ee; Polish: [pjaˈsɛtski]; October 24, 1919 – February 11, 2008) was an American engineer and helicopter aviation pioneer. Piasecki pioneered tandem rotor helicopter designs and created the compound helicopter concept of vectored thrust using a ducted propeller. [2]