Aerola Alatus-M, G-CFDT
When reducing engine power after a powered takeoff the pilot experienced high levels of vibration followed by a loud bang, which was caused by the separation of the pylon mounted propeller from the motor glider. The pilot completed an uneventful glide approach and landing. The cause of the propeller loss was the failure of the aluminium propeller shaft. The shaft may have failed during one of two events where movement of the engine pylon structure was sufficient to allow the propeller to strike the engine bay doors whilst it was under power.
Aerola Alatus-M, G-CFDT 10-10.pdf (379.91 kb)