| 摘要 |
FIELD: water sports equipment. ^ SUBSTANCE: unit load is made in the form of truncated semi-cone closed at the top and fully open at the bottom and has invariable volume. Unit load is equipped with leg attachment device. Curved side of semi-cone is made in the form of rigid grid. Narrow flexible strip is secured with its one edge to inner wall of grid so as to overlap each other when leg moves backward for serving as valve, and to open under the pressure of water when leg moves forward. ^ EFFECT: increased speed of movement in water. ^ 1 dwg |
