Vibration suppressing trunk fingers for air cushion devices

Details Vibration suppressing trunk fingers for air cushion devices Vibration suppressing trunk fingers for air cushion devices

1978-09-01

1983-05-17

Frankfort, Charles E.

Aeronautics and astronautics

Landing gear

114 67A, 180124, 180127, B60V 308, B60V 116, B64C 2532

Patent

active

043836640

ABSTRACT:
In an aircraft air cushion takeoff and landing system with a flexible trunk section in the form of a large expandable tube, having multiple air exhaust holes in the bottom thereof, encircling the bottom of the fuselage, a group of flexible finger-like protrusions beneath the forward section of the trunk. The downwardly extending finger-like protrusions make intermittent contact with the ground surface to suppress vertical vibrations in the trunk when the aircraft is hovering at ground level with the trunk inflated.

REFERENCES:
patent: 3258080 (1966-06-01), Williams et al.
patent: 3379271 (1968-04-01), Hopkins et al.
patent: 3400779 (1968-09-01), Grace
patent: 3512603 (1970-05-01), Crewe et al.
patent: 3524517 (1970-08-01), La Fleur
patent: 3756343 (1973-09-01), Joyce
patent: 3894609 (1975-07-01), Wulf
patent: 3921753 (1975-11-01), Pont
patent: 4019698 (1977-04-01), Earl

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