The P-trap swivelboom is the most commonly applied mechanism. Swivel motion allows easy sea fastening when not in use. It is standard deployed by vessel crew prior to the high risk areas. The swivelboom can be stored similar to storing a gangway and can be delivered in modules allowing some vessels to store the main components in the vessels storage lockers. The P-trap foundation is bolted to a baseplate, which is welded to deck. The P-trap swivelboom is transferable to another vessel with the same baseplate installed (length 6 – 10 m).