Drogue chute speed mode selector

Details Drogue chute speed mode selector Drogue chute speed mode selector

1990-05-03

1992-04-14

Barefoot, Galen

Aeronautics and astronautics

Aircraft structure

Fuselage and body construction

244141, 244152, 7386265, 73184, B64D 1764, B64D 25112

Patent

active

051040662

ABSTRACT:
An ejected pilot's seat is provided with a drogue chute anchored to the seat by means of a bridle. The bridle includes a strap having redundant load cells parallel connected in redundant fashion. The load cells measure tension in the strap. Data from the load cell is conducted through the bridle to a microprocessor contained within the seat. The microprocessor includes look-up tables for correlating tensile load in the strap to forward velocity of the ejected pilot. Upon acquisition of a preselected optimum velocity, the drogue chute is released and a main chute is deployed to increase the likelihood of a safe descent to the ground.

REFERENCES:
patent: 2795134 (1957-06-01), Weber et al.
patent: 2969212 (1961-01-01), Martin
patent: 3038407 (1962-06-01), Robertson et al.
patent: 3067973 (1962-12-01), Halsey et al.
patent: 3191892 (1965-06-01), Fuller et al.
patent: 4527758 (1985-07-01), Ayoub et al.
patent: 4709885 (1987-12-01), Martin

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