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Water Screws (page 2)

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Xah Lee, 2003-05

boat propeller

Propeller for a small boat. (Source) The scars on the blade are Cavitation damage.

water screw

MS Europa (Build in 1938).

water screw

Submarine from World War 1.

Above photos are are taken in the Villa Hügel, Essen, Germany, ~2004, contributed by Volker Peters.

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