Device for increasing the stability of helicopters placed on boa

Details Device for increasing the stability of helicopters placed on boa Device for increasing the stability of helicopters placed on boa

1989-01-17

1991-02-26

Barefoot, Galen

Aeronautics and astronautics

Aircraft, heavier-than-air

Helicopter or auto-rotating wing sustained, i.e., gyroplanes

244100R, 244102R, B64C 2504

Patent

active

049955748

ABSTRACT:
Device for increasing the lateral stability of a helicopter having a tricycle landing gear (2, 6), when it is set down on a moving platform. The device comprises two lateral stabilizers (13), each equipped with a wheel (16) for support on the platform and connected to the structure of the helicopter by an essentially rigid support, comprising a leg (17), about whose axis the wheel (16) can turn, the leg (17) itself being connected to the structure by a rigid and transverse component which may be a pivot axle if the leg can be raised, or a slidingly fitted arm if the stabilizer (13) is additional. The stabilizers may also be integrated into a towing trolley.

REFERENCES:
patent: 2448064 (1948-08-01), Wall
patent: 2454611 (1948-11-01), Paraskevas
patent: 2483027 (1949-09-01), Van Zelm et al.
patent: 2909342 (1959-10-01), Maltby
patent: 2989268 (1961-06-01), Andrews
patent: 3295795 (1967-01-01), Meek, Jr. et al.
patent: 3954232 (1976-05-01), Harper
patent: 4062507 (1977-12-01), Felder
patent: 4630788 (1986-12-01), Veaux et al.
Navy Technical Disclosure Buttetin, vol. 4, No. 11, Nov. 1979, pp. 11-15, Navy Techn. Cart. No. 7840, Navy Case No. 61558; F. L. Sheetz et al.: "VTOL Aircraft Hold-Down Device", p. 14, lines 5-26; FIGS. 1, 2.

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