UNMANNED COMBINED HELICOPTER Russian patent published in 2017 - IPC B64C39/02 B64C27/22 

FIELD: aviation.

SUBSTANCE: unmanned combined helicopter has two propellers in the rotary annulas ducts mounted on the sides of the bearing centerwings-compartment, in which the engines and the main reducer are located with the shafts laid inside the wing. The centerwing is made on a two-beam scheme with the propulsion bearing system and the concept of distributed traction of different-sized propellers (DTDP), arranged along the DTDP-X2+2 scheme, which includes, along with two smaller propellers in the rotary annulas ducts, different-sized propellers placed on pylon-sector, mounted on the centrowing wing above the mass center. The pylon is equipped with a reducer of crisscross propellers with an upper arrangement of V-shaped output shafts having an angle between their rotation axes equal to 30°.

EFFECT: simplification of longitudinal balancing with hovering and improvement of lateral-longitudinal controllability.

1 dwg,1 tbl