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25th May 2013, 22:38

#15 (permalink)

switch_on_lofty

Join Date: Mar 2006

Location: SW

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Because bridge windows are flat and don't travel at 120kts+ through the air. Also it doesn't really matter to a ship if a wiper system weighs 500g or 15kg, whereas obviously weight, low drag and space are more of an issue to helicopter designers.

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