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A comment on No Longer a Dream: Silicon Valley Takes on the Flying Car. Parent comment
Easy to understand summary of helicopter ground effect, with pictures:
http://www.copters.com/aero/ground_effect.html
I note that the rotary wing ground effect works to a height of about the rotor diameter, so it's not clear to me that this is a useful effect with these small rotors.
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Easy to understand summary of helicopter ground effect, with pictures:
http://www.copters.com/aero/ground_effect.html
I note that the rotary wing ground effect works to a height of about the rotor diameter, so it's not clear to me that this is a useful effect with these small rotors.