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Tests of the Bell Aerospace LA-4 ACLS Fitted with Suction Braking and Predictions for Other Aircraft

Report Number: AFFDL TR 75-135
Author: Earl, T. D.
Author: Satterlee, C. E.
Author: Stauffer, C. L.
Corporate Author: Bell Aerospace Company
Laboratory: Air Force Flight Dynamics Laboratory
Date of Publication: 1975-11
Pages: 53
Contract: F33615-75-C-3038
AD Number: ADA023850

A test program was conducted by Textron's Bell Aerospace Company, using their air cushion landing system (ACLS) equipped Lake LA-4 aircraft to investigate the potential of a suction braking ACLS subsystem. The new braking subsystem was tried on dry and wet runway and rough grass. Deceleration up to 0.5g was recorded with the suction flow available. The potential of a developed system applied to a cushion planform designed to utilize suction braking exceeds this range, and the report predicts effective potential application to the C-130, Jindivik, and XC-8A.

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