ORIGINAL: Ed Cregger
ORIGINAL: exeter_acres
yes....
but sadly.....many people Wrongly use gas to describe airplanes or helicopters that run on glow fuel ( a mix of alcohol, nitro, and oil)
a better term is calling them "glow" models...
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Technically, glow fuel and gasoline/petrol fueled engines are gas engines. My memory isn't in great enough shape to give you the technical reasons why any longer, unfortunately.
When I was young, Cox, Wen-Mac, OK Cub and others used the term gas powered on their RTF model boxes. I saw someone complain about this in a model magazine and read the explaination of precisely why they are technically and legally considered to be powered by gas. Sure wish I could dredge it up for you. Maybe someone else remembers the "why" of this fact.
Ed Cregger
I think if you get down to the thechie talk level, what we call GLOW ENGINE is a semi-diesel ignition engine as apposed to a gas engine with spark ignition..