ORIGINAL: Charlie P.
I can fly about 18 minutes of aerobatics and have some left with my 34cc gasoline engine and the 420cc tank. That's 14 ounces, or 0.75 ounces per minute of actual flight, with a model that weighs over 15 pounds, using a fuel that costs 1/4 as much as glow alcohol.
Gotta love gasoline birds.
yep Charlie, you got that right, and i'm looking into a gas bird these days.