DRONE WITH HYBRID POWER PLANT (VERSIONS) Russian patent published in 2014 - IPC B64C27/28 

FIELD: aircraft engineering.

SUBSTANCE: proposed drone has airframe of composite coal-plastic, nose tail plane and twin-fin tail mounted at outer wings at spaced apart beams. It comprises supports of all-moving stabiliser arranged on outer sides of keel, hybrid power plant to transmit power to pivoting shafts of screws. Three-leg retractable undercarriage with front leg and the main lateral legs. Airframe can be configured to duplane and longitudinal-transversal 2+2 configuration of propellers. Note here that equal propellers feature multiblade design without swash plates. Power plant hybrid power plant is equipped with left and right cantilever engine nacelles. Said nacelles house motors while nose and tail nacelles support motor-generators. Piston engine is arranged in the nose engine nacelle. At airframe 2+1 configuration with two smaller nose and tail larger propellers, hybrid power plant comprises cantilever engine nacelles whereat turboprops are arranged in tandem with generator-motors.

EFFECT: weight, carrier and fuel capacity, better crosswise and course stability.

3 cl, 3 dwg