HELICOPTER Russian patent published in 2019 - IPC B64C27/22 

FIELD: aviation.

SUBSTANCE: invention relates to aircraft engineering, particularly, to helicopters. Helicopter comprises fuselage with bottom, bearing screw on shaft connected via reduction gear with two gas turbine engines arranged in upper part of fuselage, having air intake, compressor, combustion chamber, turbine and nozzle. In the lower part of the fuselage there is a third gas turbine engine having an air intake, a compressor, a combustion chamber, a turbine and a nozzle, at that, the third gas turbine engine nozzle is rotatable in vertical plane to be installed in vertical position in emergency mode. Between the turbine and the nozzle of the third gas turbine engine, an afterburner is made. Fuselage bottom is provided with safety platform having vertical holes for arrangement of third gas turbine engine nozzle in emergency mode. Inner cavity of safety platform is filled with damping material in form of cellular structure or metal rubber.

EFFECT: possibility of safe landing during rotor destruction.

6 cl, 10 dwg