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Nov30-09, 06:55 PM
Cyrus's Avatar
P: 4,777
Quote Quote by Mech_Engineer View Post
The point is that a helicopter like is being proposed needs at least 1hp (745W) to fly (I'm still convinced it would be more, but flying within the ground effect does help).
I just showed you a calculation concerning the power.

The problem is, every pound kills you, and "successful" designs like the Davinci III only had an available payload of 59kg (130lb) for the pilot. Even powerful professional athletes which are significatly heavier cannot sustain that kind of output for very long.
That's right exactly right, and the power goes with the weight^(3/2).