Evacuation slide with leading edge spoiler

Details Evacuation slide with leading edge spoiler Evacuation slide with leading edge spoiler

2005-04-12

2005-04-12

Barefoot, Galen (Department: 3644)

Aeronautics and astronautics

Aircraft structure

Passenger or cargo loading or discharging

C244S905000, C193S0250AC, C182S048000

Reexamination Certificate

active

06877696

ABSTRACT:
An inflatable evacuation slide is presented that includes an aerodynamic spoiler to kill the lift caused by air flowing laterally over the slide. The slide preferably comprises a fabric sliding surface stretched between two longitudinal main side members. The spoiler comprises a fabric panel, supported by a plurality of fabric gussets, that extends outward from each of the main side members. When the main side member of the slide is exposed to a lateral wind load, the spoiler creates a flow separation that kills the lift generated by the airflow. By killing the lift induced by the airflow over the top of the inflatable evacuation slide, zero or negative lift is generated by the airflow over the inflatable evacuation slide, which causes the slide to deploy downward firmly contacting the ground even in high wind conditions.

REFERENCES:
patent: 2399494 (1946-04-01), Manson
patent: 2453403 (1948-11-01), Bogardus
patent: 3108766 (1963-10-01), Beckman
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patent: 3554344 (1971-01-01), Summer et al.
patent: 3794275 (1974-02-01), Satter
patent: 5360186 (1994-11-01), Danielson et al.
patent: 20020117354 (2002-08-01), Baker et al.
patent: 1090837 (2000-10-01), None

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