Motor-driven foldable propeller for motorised glider - has propeller located at stern, and is retracted into glider body

摘要

The propeller is located at the stern (2) of the glider. The propeller blades (5) are born so as to be foldable opposite to the direction of flight. The folded propeller is retracted into the glider body (1) in a direction towards the bow, by a gear unit. A propeller shaft (8) fastened to the hub (6) is held telescopically in a hollow drive shaft (10) of the propeller motor. The shafts are positively connected to each other in direction of rotation. A shaft is located at the stern, which extends to the drive shaft, to accommodate the retracted folded propeller. USE/ADVANTAGE - Model aircraft. Improved propeller drive and forward movement.