VTOL AIRCRAFT WITH HYBRID POWER PLANT Russian patent published in 2015 - IPC B64C39/00 B64C15/12 

FIELD: aircraft engineering.

SUBSTANCE: proposed VTOL aircraft is a triplane with reverse Y-like tail assembly composed with tail circular channel accommodating hybrid engine nacelle with rear location of power plant and large push propeller, three smaller push propellers spinning in opposite direction and arranged around said circular channel in appropriate nacelles with rearward arrangement of the motor. Engine nacelles are mounted at all-moving vertical keel and stabiliser supports that feature negative angle of crosswise V=22.5 degrees. For short takeoff said supports are set to mid position of 15 degrees with simultaneous automatic flap deflection through maximum angles and can synchronously and automatically deflect in phase with smaller propellers through -15 to -35 degrees. Power plant incorporates external and hybrid engine nacelles with appropriate propellers.

EFFECT: better crosswise and course stability as well as pitch and bank controllability.

2 cl, 2 dwg