The Landgraf H-2 was an American single-seat twin-rotor helicopter designed by Fred Landgraf and built by the Landgraf Helicopter Company of Los Angeles, California. Although awarded a development contract by the United States Army, it was not developed and was overtaken by more advanced designs.
| H-2 | |
|---|---|
| Role | Single-seat twin-rotor helicopter Type of aircraft |
| Manufacturer | Landgraf Helicopter Company |
| Designer | Fred Landgraf |
| First flight | 2 November 1944 |
| Number built | 1 |
Fred Landgraf formed the Landgraf Helicopter Company in September 1943 to develop and manufacture the H-2. It had an enclosed structure for one pilot and an 85 hp (63 kW) radial engine driving two rotors, each rotor fitted to a short boom on each side of the fuselage. It had a fixed tricycle landing gear. The H-2 first flew on 2 November 1944 and the company was awarded a development contract by the United States Army. It was not developed or bought and the company ceased operations by the end of the 1940s.
Unlike conventional helicopters, the H-2 used a tension-rod drive system to drive the side-by-side rotors.[1] Control of blade pitch was also unconventional, with the blade shells rotating freely about the spars, controlled by ailerons near the tips.[2]
Data from [3]
General characteristics
Performance
Aircraft of comparable role, configuration, and era
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