# What is the part of a ship that protrudes forward under the waterline?

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They are called "bulbous bows" and are designed to reduce the wake generated and therefore increase the efficiency with which large ship moves through the water. On warships, bow mounted sonar domes can also serve this purpose. I have never seen one on anything small. In the days of the Greek and Roman triremes, they had rams mounted that way in order to hole the hulls of enemy ships.

Posted on Sep 27, 2010

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Posted on Jan 02, 2017

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