Escape mechanism for crew of aircraft

Aeronautics and astronautics – Safety lowering devices – Passenger compartment

Patent

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244117A, B64C 100

Patent

active

050588303

ABSTRACT:
A crew protection system designed to isolate an aircraft crew and provide a means for safely evacuating an aircraft, particularly hypersonic vehicles, in emergency situations. The crew compartment is designed within the forebody of the main vehicle. The forebody is designed so as to separate cleanly from the main vehicle as by generation of a circumferential structural break, in the event of a catastrophic failure or explosion of the main vehicle fuel tank. In the event of such an uncommanded failure of the main tank and propellant combustion, resulting in the above noted structural failure, the resultant pressure impulse thrusts the forebody containing the crew compartment clear from the remainder of the vehicle. The provision of a system of baffles in the forebody between the crew compartment and the fuel tank, and the shape of the forebody and the materials used in its construction mitigate the effects of the blast pressure impulse on the crew. The forebody is also designed to be stable during the transient period immediately following the blast and the subsequent free fall of the forebody, permitting the crew to safely evacuate the crew compartment and forebody at a preselected altitude.

REFERENCES:
patent: 2736523 (1956-02-01), Chaplin
patent: 2977080 (1961-03-01), Von Zborowski
patent: 3067973 (1962-12-01), Halsey et al.
patent: 3129667 (1964-04-01), Wen
patent: 3369782 (1968-02-01), Billig et al.
patent: 3703265 (1972-11-01), Troitino
patent: 3881671 (1975-05-01), Bouchnik
patent: 3979005 (1976-09-01), Robinson et al.
patent: 4580746 (1986-04-01), Peck

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