| 摘要 |
<p>A sea anchor designed to even-out fluctuations in vessel speed when running before a sea. When nose (11), which is attached by cable (37) to the vessel, experiences a pull greater than a predetermined magnitude, spring (23) is compressed (as shown), plates (33) pivot, and ports (32) are opened. This opening changes the sea anchor from its former streamlined shape to one of greater drag due to increase in the projected surface area and in the turbulence produced. Stability against spin is provided by longitudinal flow-through water passages (26) and vanes (41). The device may alternatively be used, when aligned vertically, as a buoy trailed behind a life raft. In this mode the nose is lowermost, vanes (41) serve as radar reflectors, the normally collapsed bladder (30) is inflated and a radio transmitter inside tube (18) transmits a distress signal. </p> |
