| 摘要 |
FIELD: transport. ^ SUBSTANCE: invention relates to aircraft engineering. Rotor blade 20 comprises aerodynamic profile with tip 21, base 201 with core 22 and top and bottom shells 30 enveloping core 22. Profile rear edge zone 23 with rear edge 40 is provided with recoverably bending drive 26 with its first edge secured in edge zone of base 20a facing rear edge 40, and its second edge extending unobstructed from base 20a and its edge zone toward rear edge 40. Second edge forms a part of blade rear edge zone 23 and blade moving trim tab 24 that, with drive 26 bent, can be deformed to allow arc-like deflection of blade trim tab. Proposed rotorcraft is characterised by use of said blade. ^ EFFECT: simple design and smooth deformation. ^ 32 cl, 17 dwg |
