CRYOGENIC ELECTRICAL CONVERTIPLANE Russian patent published in 2014 - IPC B64C27/28 B64C37/00 

FIELD: aircraft engineering.

SUBSTANCE: convertiplane of biplane aerodynamic configuration with different-size wings has larger second wing mounted above the first all-moving smaller wing. Convertiplane allows conversion of its six-rotor helicopter configuration with four front smaller rotors and two rear larger rotors into aircraft with six- or four-screw propulsion system, and visa versa. At storage battery capacity decrease, control in every hybrid engine nacelle disengages automatically by output clutch the rear rotor from rotary shaft by setting its blades to weathercock position to cut on the turboprop to actuate generator-motor for charging of storage battery in four-screw aircraft configuration. Increase in electric power generation can be ensured in every engine hybrid nacelle the generator-motor of which operates in windmill mode during cruising flight and is driven by rear pull screw rotational axis of the latter being deflected from vertical in direction of flight which predetermines windmilling at its skewed fanning.

EFFECT: increased range, fuel and weight efficiency.

2 cl, 2 dwg