Aircraft actuation device has two counter-coaxial propellers, where freely rotating ring gear propels front propeller and rear propeller

摘要

The actuation device has two counter-coaxial propellers. The freely rotating ring gear (4) propels the front propeller (7) as well as the rear propeller (8). The ring gear is supported on a thin ring bearing (5) at the transmission housing (6). The front propeller driven by the planet carrier (3) is arranged such that it receives lesser load than the load driven by the ring gear. The driving motor is an electric motor.