Fred wrote: > I was scooped by this 1996 patent (US 5,503,351) for using a > 10-15 HP lawnmower engine and radial diffuser plates at the tip > of the 4 ft diameter x 18 inch blade, 600 RPM,(~12,000 CFM) > radial fan (squirrel cage wheel?) to get torque cancelation and better > airflow over the ~ 12 foot diameter x 4 foot chord airfoil for about 1/2 > ton or more lift. > Note: A 7,000 CFM "Swamp Cooler" squirrel-cage blower is used on large homes, > that requires a 3/4 HP motor, but doesn't have the ~ 85 MPH tip speed at it's > > operating RPM.
I dunno, Fred, this might be a poor substitute for one of your gas filled pogo sticks. Got any of those left? M. _______________________________________________ Join Excite! - http://www.excite.com The most personalized portal on the Web!
