FIELD: vertical takeoff and landing flying vehicles. SUBSTANCE: helicopter includes fuselage with crew cabin, first circular rim articulated on fuselage and provided with circular slot where rolls are secured, second circular rim mounted in slot of first circular rim and mechanically linked with engines. Main rotor blades are secured on second circular rim. Third circular rim mechanically linked with blades is receiver by slot of second circular rim. Fourth circular rim connected with rim secured on main rotor blades by means of struts. EFFECT: increased cargo hoisting capacity of helicopter due to reduction of bending moment of main rotor blades. 4 cl, 2 dwg
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