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Old 11-15-08, 04:30 PM   #1
Mr.Bimmler
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Join Date: Oct 2008
Location: Meinhead
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Deducting speed from sonar.

Hello,

Well, is it possible to deduct a ships sound from counting propellor revolutions of a ship? And how accurate are these estimates? I'd really like to know this, just to back up other ways of speed estimations.
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