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Stanley Hiller became interested in helicopters in the late 1930s, when he saw pictures of the Focke-Wulf Fw 61 and the Vought-Sikorsky VS-300.He bought every book on helicopter development that he could find, and in the early 1940s he began design work on the XH-44, at the age of 17.
Whirligig store. A whirligig is an object that spins or whirls, or has at least one part that spins or whirls. It can also be a pinwheel, spinning top, buzzer, comic weathervane, gee-haw, spinner, whirlygig, whirlijig, whirlyjig, whirlybird, or simply a whirly.
On 29 September 1907, the Gyroplane No.I was flown for the first time, albeit to an elevation of only 0.6 metres (2.0 ft). [1] It was not a free flight, as four men were used to steady the structure.
Stanley Hiller, then seventeen, established the first helicopter factory on the West Coast of the United States, located in Berkeley, California, [1] in 1942, under the name "Hiller Industries," to develop his design for the coaxial-rotor XH-44 "Hiller-Copter" for the U.S. Army. The XH-44 became operational in 1944. [2]
In this image taken in 1944, one of Langley Research Center's Sikorsky YR-4B/HNS-1 helicopters is seen in the 30 × 60 full-scale tunnel.. 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.
Early helicopter designs utilized custom-built engines or rotary engines designed for airplanes, but these were soon replaced by more powerful automobile engines and radial engines. The single, most-limiting factor of helicopter development during the first half of the 20th century was that the amount of power produced by an engine was not able ...
The Bell 47 is a single-rotor single-engine light helicopter manufactured by Bell Helicopter.It was based on the third Bell 30 prototype, which was the company's first helicopter designed by Arthur M. Young.
Other early experimenters were William Foshag and Joe Carter. These types of monocopters caught on in the model airplane world, particularly in Eastern Europe , where free flight record-setting models were constructed by George Horvath of Hungary, Sergei Vorabyev [ 15 ] and V. Naidovsky of Russia, and Steffan Purice of Romania .
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