FIELD: aeronautical engineering; vertical take-off and landing vehicles. SUBSTANCE: helicopter includes fuselage 2 with crew cabin 1, engines 15, main rotor whose blades are secured on hub 12 revolving on shaft 13 articulated on rack 14 running through helicopter center of gravity, circular rim 7 articulated on fuselage 2 and gearing unit thrown into engagement with rim 7; gearing units are secured on blades of main rotor. Circular rim 7 is secured on fuselage by means of hinges 5 and 6 of longitudinal and transversal suspension 3 for control of flight by turning rim 7 around hinges of transversal suspension 3. Helicopter includes also second circular rim 10 connected with blades by means of struts 8 and mechanically linked with engine shafts. EFFECT: enhanced reliability. 3 cl, 1 dwg
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