Method and apparatus enabling a horizontal landing of a flying b

Details Method and apparatus enabling a horizontal landing of a flying b Method and apparatus enabling a horizontal landing of a flying b

1981-07-06

1983-10-11

Barefoot, Galen L.

Aeronautics and astronautics

Retarding and restraining devices

Friction brakes

244DIG1, 244139, B64D 1780

Patent

active

044087373

ABSTRACT:
A flying body such as an aircraft or a re-entry vehicle is enabled to land substantially horizontally with the aid of one or several glider parachutes also referred to as paragliders, which are stored in an upper body zone and ejected during the landing. The lift capacity of the paraglider is so dimensioned that it replaces the lift loss of the wings due to the low landing speed, whereby the weight of the flying body is kept in equilibrium to the sum of the wing lift and of the paraglider lift. The paraglider resistance or drag is compensated by the engine thrust and an ascending or descending flight is accomplished by modulating the engine thrust.

REFERENCES:
patent: 3089667 (1963-05-01), Gosslau et al.
patent: 3135482 (1964-06-01), Girard
patent: 3275271 (1966-09-01), Forehand
patent: 3756546 (1973-09-01), Carson, Jr. et al.
patent: 3796398 (1974-05-01), Eilertson
patent: 3980259 (1976-09-01), Greenhalgh et al.
Johnson, "Low-Subsonic Flight Chara. of a Model of a Supersonic-Airplane fig. w/ a Parawing as a Landing Aid" NASA TN D-2031 1963.
Bugg et al., "Low-Speed Tests of an All Flexible Parawing for Landing a Lifting Body Spacecraft, NASA TN D-4010, 1967.
Nicolaides, "Parafoil Powered Flight Performance", Tech Rep. AFFDL-72-73, 1973.
"Aerodynamic Characteristics of the Parafoil Glider and other Gliding Parachutes", RTD-TDR-63-4022, 1964.

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