RE: Electrically Powered Helicopters

[Dave Wargo <wargo@cs.ucsd.edu>]

This bring up and interesting subject.

How about a hover craft?

As I understand it a flying machine in ground effect uses a lot less power
then a machine in flight.

Just a thought.

Dave

At 8:49 PM +0200 3/31/99, 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.
>
>ie. when going forward at say 50MPH ?
>
>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.
>
>ROdney Benn


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