Off TopicAre you a QOTWer? Do you want to start a thread that isn't a direct answer to the current QOTW? Then this place, gentle poster, is your friend.
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rob, Sun 1 Apr 2001, 1:00)
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When wind turbines are designedThe blades are so long, they need to make sure they won't travel at supersonic speeds, or else bad shit happens.
(, Thu 9 Dec 2010, 21:49, 1 reply, 15 years ago)
HmmFor the very biggest turbines, maybe. If the blades were 40m long it would have to be spinning at 81rpm to break the speed of sound. A smaller turbine would have to spin far faster, but I'm really not sure that drag forces would let them get that fast except in a hurricane...
I should clarify - I'm not saying you're wrong, just that I think problems would start to occur way before the blades got to "speed of sound" levels.
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Hdjejjwsjdjjf LOOK, Thu 9 Dec 2010, 22:42,
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