I'm still trying to understand why you want an electrical duct on a bicycle, let alone why you would put a fan in it.
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11 years ago
Powerful EDFs
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11 years ago
The duct improves the efficiency of the fan, I suspect the whole assembly is required as the rider is not eating enough beans and needs some further wind assistance.
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11 years ago
But, since efficiency is lower with high velocity flow than low velocity flow, wouldn't it be better to have a nice little epicyclic gearbox and a _BIG_ propeller?
Mark Rand RTFM
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11 years ago
Well if it's efficiency that's important, why doesn't the fellow fit a couple of sprockets linked by a chain that he can turn with his feet? Can't get more fuel efficient than that.
Cliff Coggin.
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11 years ago
Its a TLA
Regards, Tony