FIELD: AVIATION. SUBSTANCE: helicopter has fuselage 1, rotor 2, airfoils 19 and swivel module 4 fixed on post 6 by means of swivel bracket 5, which all may turn about vertical axes O2 end O1. EFFECT: extended functional capabilities. 1 cl, 5 dwg
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| TANK | 1992 |
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RU2027974C1 |
