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Old 11-29-2021, 11:51 AM   #10
whswhs
 
Join Date: Jun 2005
Location: Lawrence, KS
Default Re: vehicles on Mars: lifting capacity

Quote:
Originally Posted by Anthony View Post
The approximation is even more wrong than it is on Earth, as helicopter lift isn't linear in power to start with -- it scales with the 2/3 power of rotor power, the 1/3 power of rotor area, and the 1/3 power of atmospheric density.
It seems to me that I just scaled it with the 1/3 power of atmospheric density.

I was pretty sure the formulae in Vehicles were oversimplified; they seem to be approximation some sort of curve with, first, a simple proportionality, and second, a linear equation with a nonzero intercept. But I'm not knowledgeable enough about vehicular engineering to come up with more accurate formulae.
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I don't think we're in Oz any more.
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