| 摘要 |
<p>A remotely-operable vehicle (ROV) which is capable of crawling along and adhering to the structure to be inspected and cleaned, both into and through the splash zone up to at least sea state 5, i.e. that state of the open sea corresponding to at least a wind of force 5 on the Beaufort scale. According with the invention, the ROV has a frame (10) having means (18-21) for engaging the contact surface and at least one nozzle (25) mounted on the frame and directed away from the surface engaging means. The or each nozzle is provided with a supply of water under pressure via an umbilical hose from a source independent of the frame to issue from the or each nozzle to provide thrust which enables the vehicle to bear against the contact surface and progress therealong in sea or in air or through the air/sea interface of the zone. The vehicle can be steered by a pair of nozzles (25) which are differently vectorable fore and aft. </p> |
