| 摘要 |
<p>The invention relates to supplementary device for floats of float aircraft that is comprised of four air-tight bladders (10), which can be pressurized with compressed air and which extend along the float and rest on lateral surfaces (11) of the float that is essentially comprised of a casing (1). The bladders (10) are made of an elastomeric material or of another type of flexible and slightly expandable material and are completely overlaid with an elastic and waterproof textile skin (9). In a pressurized state, the edges of the casing (1), i.e. the lateral edges (8) and keel edge (7), are smoothened. This enables the drag coefficient cw of the float to be considerably decreased as soon as the aircraft is in the air. For landing on water and the take-off of the aircraft, the compressed air is evacuated so that the edges (7, 8) can be rendered effective for providing directional stability (keel edge (7)) and for preventing the Coanda effect (lateral edges (8)).</p> |
