Puller propeller
This is potentially an idiotic question, but I don't really know until I see the answers. The question arose on another, rather less sane forum. Have there been (large) vessel designs with a puller...
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"it be structurally problematic to have an azipod sticking out sideways from a ship's hull " Going alongside might be interesting not to mention RAS
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A tractor propeller, in the bows of a ship, would keep hitting things. Usually, when an airplane hits things, like uncharted rocks, damage to the props is the least of the problems. Sticking an azipod...
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The British did some model testing of ships with both bow and stern propellers in order to see if they could help in the case of the stern propeller being damaged. They found that they could do it but...
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TT wrote:This is potentially an idiotic question, but I don't really know until I see the answers. The question arose on another, rather less sane forum. Have there been (large) vessel designs with a...
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It is an idea counter to hydrodynamics. The tractor prop would cavitate and disrupt the smooth flow of water through which the hull must pass. This would cause many issues with control and efficiency....
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A hulbous bow works by generating a wave which interferes with the wave created by the bow; they increase frictional resistance.
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http://www.businessweek.com/articles/2014-08-21/juliet-marines-ghost-boat-will-be-hard-sell-to-u-dot-s-dot-navy?campaign_id=DN082214
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Caden2248 wrote:It is an idea counter to hydrodynamics. The tractor prop would cavitate and disrupt the smooth flow of water through which the hull must pass. ... A ship want o sail through stable,...
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SWATH boats effectively have no bow wave if their struts are slim enough.
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Considerably reduced bow wave, as it's largely proportional to the waterplane area, but it's there. The post above seemed to imply a method for sailing without forming a bow wave... Anyway, on the...
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