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Old 09-28-2013 | 12:54 PM
  #13  
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tomgoodman
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Joined: Feb 2006
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From: 767A (Ret)
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Originally Posted by Spin
Can someone explain why those boats can go so fast. With winds of 18 knots they could reach speeds of more than 40 knots. It's really amazing.
Here you go:

How Do These Boats Sail Faster Than the Wind? | Science | KQED Public Media for Northern CA
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