jackup

a jackup drilling rig.

jackup

a jackup drilling rig.

Jackup

A deck with legs that can be jacked up or down. During operations, the legs rest on the sea bed. When the rig is moved, the legs are retracted, leaving the rig floating. A jackup has normally no propulsion machinery of
Found on http://www.insurexchange.com/glossary/maritime.htm

JACKUP

A deck with legs that can be jacked up or down. During operations, the legs rest on the seabed. When the rig is moved, the legs are retracted, leaving the rig floating. A jackup has Normally no propulsion machinery of its own.
Found on http://ports.co.za/maritime-terms.php
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