A friend is an engineer with Newport News Shipyard, and for several years he's been working on the George H.W. Bush (CVN 77), commissioned January 2009 and the last of the Nimitz class carriers.
(Didn't they used to wait a while longer before naming major combatants after politicians?)
He reports - and this is public information - that the four propeller shafts on the Bush are some 400 feet long and 30 inches in diameter of the toughest steel. At flank speed, which is classified information, the shafts twist one and a half times from the gearbox to the propeller.
Saturday, December 26, 2009
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