"Garry O" wrote in message
u...
"John Doe" wrote in message
...
Dan wrote:
cavelamb wrote:
John Doe wrote:
Orval Fairbairn o_r_fairbairn earth_link.net wrote:
The model airplane guys have a very small (about 15" long, 5"
dia) turbojet that they use on scale jet R/C planes. It costs
about $3000 US.
How much for maintenance and fuel?
It burns a quart of fuel in a minute or minute and a half.
Is it louder than a gas powered weedeater? Just curious.
Deafening.
100,000 RPM with every harmonic ever invented.
I think they missed the lower sub harmonics, but who can hear
over that racket?
Dan, U.S. Air Force, retired
http://www.youtube.com/watch?v=FxT5H...eature=related
Some backpack fan powered paragliding. Looks like so
much fun, but dangerous.
--
Thanks to the replies.
I would imagine less dangerous than trying to in-line skate with one of
those things on :-)
There was a rocket powered roller skater back in the 70's
http://www.the-rocketman.com/capt-rollerball.html
Keith