FIELD: aviation. SUBSTANCE: helicopter includes fuselage made in form of wing whose span is lesser than chord of its profile; wing is ellipsoid in cross section and is provided with stall fence located in vertical plane. Vertical tail consists of control surface - direction stabilizer which is rotatable through angle of control and about construction line in vertical transverse plane. Wing consists of two half-wings articulated in center section (fuselage); they may change angle of attack of up to 90 deg. EFFECT: enhanced reliability. 2 dwg
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