MULTIROTOR HYBRID ELECTRICAL CONVERTIPLANE Russian patent published in 2015 - IPC B64C27/28 B64C37/00 B64C39/08 

FIELD: aircraft engineering.

SUBSTANCE: this convertiplane has fuselage with high gull-shape wing with turn wing panels supporting hybrid nacelles of tree-screw modules to be operated at different angles of their vertical inclination in vertical plane. Said modules feature different-size pull screws. Larger screws are arranged in appropriate nacelle at front position of power plant and are brought forward beyond wing leading edge and beyond smaller screw rotation plane. It features crosswise arrangement of one, two or three pairs of three-screw modules mounted on rotary part of wing panels or two or three wings fitted on said wing panels. It is configured to have distributed thrust of different-size screws including two smaller screws arranged around larger screw behind its inner and outer quadrants to allow conversion from hybrid electric helicopter to electric aircraft. Screw diameter in every three-screw module is defined by D=d× $$\sqrt[3]{3}$$ , m (where D and d are diameters of larger and smaller screws) to develop controlled thrusts at vertical takeoff, landing and hovering for crosswise and lengthwise controllability.

EFFECT: higher operating and fuel efficiency.

3 cl, 2 dwg