1. 
   jackup
   a jackup drilling rig.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
2. 
   jackup
   a jackup drilling rig.
   Found op http://www.encyclo.co.uk/visitor-contributions.php
   
   
3. 
   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 op http://www.insurexchange.com/glossary/maritime.htm
   
   
4. 
   jackup
   1) A drilling rig
   Found op http://www.mijnwoordenboek.nl/EN/crossword-dictionary/jackup/1
   
   

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