| 摘要 |
A high-lift device (3) of a flight vehicle includes: a flap main body (11) provided at a trailing edge portion of a main wing (2) of the flight vehicle so as to be extracted from and be retracted in the trailing edge portion and extending in a wing span direction of the main wing (2); and a vortex suppressing portion (100, 200, 300, 400, 500, or 600) provided at a tip end portion of the flap main body (11) in a wing span direction of the flap main body (11) and configured to suppress a vortex rolling up from a lower surface of a tip end portion (11a) of the flap main body (11) to an upper surface of the tip end portion (11a). |
