Screw Vessel

Screw Vessel

 

a sea vessel driven by a screw propeller. Most of the ships in a modern powered fleet are screw vessels, including ordinary displacement vessels, submarines, and hydrofoils. Screw vessels may have one stern propeller (single-screw vessels) or several propellers (double-screw and triple-screw vessels); on some screw vessels (icebreakers and ferryboats) a propeller is also mounted in the bow section.

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The triple screw vessel is capable of 20 knots and can carry 50 passengers as well as 60,000 kg of cargo on the extensive aft deck.
(b & c): Selective catheterisation of the coeliac axis demonstrated an aberrant artery arising from the splenic artery crossing the midline to the right lower abdomen in the region of the acute haematoma terminating in abnormal cork screw vessels (blue arrows).
The introduction of stream-powered screw vessels, along with the reduction in size of the whaling fleet, led to increased success for the few remaining Scottish boats.