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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.
A group of 1950s NACA research aircraft. As used here, an experimental or research and development aircraft, sometimes also called an X-plane, is one which is designed or substantially adapted to investigate novel flight technologies. [1] [2] [3]
The Piasecki X-49 "SpeedHawk" is an American four-bladed, twin-engined experimental high-speed compound helicopter developed by Piasecki Aircraft.The X-49A is based on the airframe of a Sikorsky YSH-60F Seahawk, but utilizes Piasecki's proprietary vectored thrust ducted propeller (VTDP) design and includes the addition of lifting wings.
Category for prototype helicopters Pages in category "Experimental helicopters" The following 13 pages are in this category, out of 13 total.
The American Helicopter XH-26 Jet Jeep (known as the XA-8 by its manufacturer) is an experimental tip jet helicopter developed in 1951 by the American Helicopter Company to meet a United States Army and Air Force (USAF) request for a collapsible and air-droppable observation helicopter.
The McDonnell Model 38 was a lightweight experimental helicopter sponsored by the United States Army Air Force to test the concept of using small ramjets at the tips of the rotor blades. [1] As a functional helicopter it was a simple open-frame steel-tube construction. [ 1 ]
This aircraft is now at the Smithsonian Institution in Washington, D.C. A standard K-225 is preserved in the New England Air Museum at Windsor Locks Connecticut. In 1953, the Turkish Army purchased one Kaman K-225 helicopter and a K-225 was the first helicopter flown in Turkey. [3]
The president of the International Experimental Helicopter Association, the Mini-500 aircraft type club, Bill Phillips, who completed a kit, but did not fly it stated: "You can tell it is junk just by looking at it" and described Revolution Helicopter Corporation president Dennis Fetters as "one of the biggest cons that’s ever hit the kit ...
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