Boundary layer control for air cushion landing systems

Details Boundary layer control for air cushion landing systems Boundary layer control for air cushion landing systems

1974-10-24

1976-11-09

Blix, Trygve M.

Aeronautics and astronautics

Landing gear

244 23R, 180128, B60V 308

Patent

active

039906582

ABSTRACT:
An air cushion landing system for aircraft, ground effect machines and the like utilizing boundary layer control around the outer sides of an inflated bag to improve its aerodynamic characteristics. This is achieved by air jets along the outside walls of the bag, the jets being normal or essentially tangential to the outside wall surface of the bag depending upon the aerodynamic effect desired. Preferably, the air jets are produced by simply permitting air, used to inflate the air cushion landing bag, to escape through orifices in the side walls of the bag.

REFERENCES:
patent: 3184185 (1965-05-01), Brocard
patent: 3205847 (1965-09-01), Smith
patent: 3363718 (1968-01-01), Hammett
patent: 3410241 (1968-11-01), Hardy et al.
patent: 3414077 (1968-12-01), Earl
patent: 3455266 (1969-02-01), Giles
patent: 3478836 (1969-11-01), Eckered et al.

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