Spring Overriding Aircraft Clutch
AVCO LYCOMING DIV STRATFORD CT
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The purpose of this program was to investigate the performance of high-speed overriding spring clutch assemblies for use in a multiengine helicopter application. The design operating conditions were 3,570 inch-pounds torque transmitted at 26,500 rpm. Two clutch configurations were evaluated. An extensive test program was conducted as follows Full-speed dynamic clutch override test differential speed dynamic clutch override test dynamic engagement test static cyclic torque fatigue test and static overload test.
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