Abstract: Standard aircraft engine accessories like generators, alternators, fuel pumps, vacuum pumps, or air pumps are dually mounted on compact, remotely operable clutch members flanged to standard engine mounting pads for direct engine drive. The clutch member includes complementary mounting pads for such engine mount and has a throughbore for rotatably supporting a pair of journaled shafts respectively carrying, driving and drive clutch plates and power operating means for longitudinally shifting one of the plates to engage the other. One shaft includes a connection for a spool-type safety coupling to drive a spline shaft extending beyond the engine mounting pad to engage an engine driven gear. The other shaft includes complementary connection for a spool-type safety coupling for driving the engine accessory.