FIELD: aviation.
SUBSTANCE: invention relates to rotorcraft safety systems. Rotorcraft landing system with engine stopped includes an overrunning clutch connecting the engine to the rotor shaft, device for spinning blades to standard rpm at stopped engine. Overrunning clutch is installed on the rotor shaft. System is equipped with an additional overrunning clutch installed on the tail rotor shaft, and an additional accumulator. Blade spinning device is made in the form of an electric motor-generator fixed on the rotor shaft or mounted on the fuselage and an electric motor mounted on the tail rotor shaft or on the tail of the helicopter. On-board electrical network generator is additionally connected through the relay to the electric motor-generator for its switching when the engine is running in the generator mode for charging the additional accumulator, and at stopped engine—into electric motor mode.
EFFECT: soft landing of rotorcraft in case of engine failure.
1 cl, 3 dwg
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