Rough calculations:

My "bird" (sailplane) would require only 3.6HP to cruise at 65 knots (20 Lbs
thrust). That works out to about 240MPG. This is using s SFC of .42
Lbs/HP/Hr but ignoring propeller efficiency.

Bill D

"Big John" wrote in message
...
Jay

Kind of OT but interesting. Would this meet ur requirements? It'd sure
'fly low' on 20 HP.

If they can make a vehicle like this why can't they make an equivalent
bird (speed and HP)?

http://www.autoblog.com/2007/12/29/high-mileage-lorem

Big John