From: Doug Jones (random@qnet.com)
Date: Sat Sep 18 1999 - 20:10:09 MDT
Spike Jones wrote:
>
> Robert J. Bradbury wrote:
>
> > I think we may have a real solution for the Jet Pack
> > vs. Air Car debate. Check out http://www.solotrek.com/
>
> Robert, this is a couple of local guys doing this. Looks
> like a possibility to me, or at least a lot closer to workable
> than the aircar concept. Besides, you get to fly around
> with a really cool airswagger posture. Race Bannon would
> look good in one.{8^D
>
> If they are able to control this thing, I could believe
> ranges of 50 to 80 km with speeds of up to about
> 100 km/hr.
>
> Whaddya think, Doug? spike
Well, that swagger stance would get uncomfortable in a hurry- I wrote to
solotrek a month ago, suggesting a set of footpegs inboard of the vehicle's
legs. The photos of the prototype showed a *huge* control authority- large
pitch motions of the fans, both collectively and differential, could induce
excessive rates. Think of a car with powersteering that goes lock to lock
in half a turn- or a bumper car for that matter- twitchy! The technogabble
about retinal scanners to lock out unauthorized users seems silly, a key
should work just fine.
Even with those fairly large fans, the power demand will be very high, and
weightlifting capacity limited. I think the greatest liability is the lack
of intuitive body english steering, the difference between skydiving and
piloting a plane.
Consider: mini helicopters with ~15 foot rotor disks are easier & cheaper
to build, safer (they can autorotate), and have less problems with rotor
wash (small area implies higher downwash velocity).
It would be a neat toy, though :)
-- Doug Jones, Rocket Plumber
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