underwater obstacle

underwater obstacle

[¦ən·dər¦wȯd·ər ′äb·stə·kəl]
(navigation)
A natural or artificial obstacle which is located to seaward of the high-water line and wholly or partly submerged, and which acts as a barrier or obstruction to the passage of ships, landing ships, craft, vehicles, or torpedoes.
References in periodicals archive ?
Hours later, Musk shared video of the narrow, bullet-shaped tube being maneuvered through an underwater obstacle course with the assistance of two divers.
Once the beach was secured, the landing craft struck an underwater obstacle and the vehicles were lost in deep water.
HAGATNA, Guam (AP) -- Staring through the glass of a tunnel aquarium, teenage students coordinated the movement of homemade robots through an underwater obstacle course.
In MacIver's lab, a blind robot that resembles a large white lozenge signals a gantry above, which steers it slowly through an underwater obstacle course of closely packed pylons.
Sponsored by Babcock, students designed and built their own Remotely Operated Vehicle (ROV) - a device frequently used by naval architects in the construction and inspection of offshore structures - and then raced around a specially constructed underwater obstacle course.
The disaster has sparked intense public speculation and a series of conspiracy theories on the internet, including a suggestion that the warship hit an underwater obstacle and tore itself apart.
On 8 May 1941, the Chief of Engineers proposed that the board find a location for experiments in beach and underwater obstacle techniques.
Armed with your own submersible jet racer, you pilot your way round an underwater obstacle course.
The electronic device sets off an alarm when a boat comes within six miles of an underwater obstacle.
Leamington Spa, United Kingdom, August 03, 2012 --(PR.com)-- Sponsored by Babcock, students designed and built their own Remotely Operated Vehicle (ROV) - a device frequently used by naval architects in the construction and inspection of offshore structures - and then raced around a specially constructed underwater obstacle course.

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