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| Ev Archive for March 1999 |
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| 1534 messages, last added Wed Aug 08 18:44:43 2001 |
[Date Index][Thread Index]
RE: Electrically Powered Helicopters
On Wed, 31 Mar 1999, Rodney Benn wrote:
> Hi, Actually I do not know, and not many people can tell me how much power the
> rotors of a hello' need when out of ground effect and not in the hover.
> Are there any good mechanical engineers out there who would like todo some qwik
> sums?
> ALso, does anyone know the formula for working out the thrust produced by a
> spinning helicoptor set of 2 rotor blades ? Spinning at 0-1000 rpm range.
Dover publishes at least two books on helicopter design which usually
sell for about $7 second-hand and probably less than $20 brand-new - I
suggest you get them.
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