摘要 |
FIELD: aviation. ^ SUBSTANCE: invention is related to the field of aviation, more precisely - to lifting screws of aircrafts. Lifting screw comprises axial vanes located on external side of split cup-like bush, inside of which centrifugal fan is installed, vanes of which rotate towards - opposite to direction of vanes rotation. ^ EFFECT: invention is aimed at improvement of aerodynamic characteristics of lifting screw with design simplicity. ^ 2 cl, 1 dwg |