Method for the landing of air and spacecrafts

Details Method for the landing of air and spacecrafts Method for the landing of air and spacecrafts

1981-04-07

1984-05-01

Barefoot, Galen L.

Aeronautics and astronautics

Retarding and restraining devices

Friction brakes

244113, 244139, B64D 1780

Patent

active

044456530

ABSTRACT:
An aircraft or spacecraft is landed with the aid of a paraglider type parachute and with a braking booster rocket which emits its jet in the landing direction. The glide number of the paraglider is selected to provide the craft for the landing with an extremely "inefficient" glide number so that the ratio of drag to lift is about 1. Thus, the total drag of the combination paraglider and craft corresponds about to the maximum forward thrust of the craft, whereby a pinpoint landing may be accomplished.

REFERENCES:
patent: 2422744 (1947-06-01), O'Neil
patent: 3089667 (1963-05-01), Gosslau et al.
patent: 3339866 (1967-09-01), Paluka et al.
patent: 3719256 (1973-03-01), Clark
patent: 3931944 (1976-01-01), Capewell et al.
Johnson, "Low-Subsonic Flight Chara. of a Model of a Supersonic-Airplane fig., with a Parawing as a Landing Aid," NASA TN D-2031, 1963.
"Aerodynamic Chara. of the Parafoil Glider and Other Gliding Parachutes", RTD-TDR-63-4022, 1964.

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