Spike Jones wrote:
>
> Mike Lorrey wrote:
>
> > Actually, given that a) there is now nearly one automobile for every
> > American adult in the US (with an average powerplant of 100hp), and b) a
> > personal VTOL aircraft really only needs about 30 hp...
>
> Personal VTOL with a payload capacity of about 60 pounds
> perhaps. Even I can't get down that far.
How do you calculate that? The Hiller backpack helicopter, as I recall,
was a 35 shp design, and that was in the 1960's.
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