CONTROL OVER HELICOPTER ROTOR JET DRIVE AND DEVICE TO THIS END Russian patent published in 2015 - IPC B64C27/18 

FIELD: aircraft engineering.

SUBSTANCE: claimed process consists in generation of compressed gas by power plant and compressor and its transfer to slot nozzles. The latter are arranged at the line of the blade cross-sections profile maximum relative depths at the angle α≤45° relative to the plate extending through the blade lengthwise axis and blade cross-section chord and downward perpendicular to said plane. Control over forces developing at the helicopter rotor leading and trailing blades is executed by the valves at changing the gas pressure in said slot nozzles. Jet drive control device comprises engine and compressor to produce high-pressure gas and system for its transfer in the blade cavity. The latter are arranged at the line of the blade cross-sections profile maximum relative depths at the angle α≤45° relative to the plate extending through the blade lengthwise axis and blade cross-section chord and downward perpendicular to said plane.

EFFECT: increased lift.

2 cl, 2 dwg