I'm one of the guys saying the Webra is fuel efficient. I have never measured it. I fly mixed turn-around aerobatics. 15 minutes of flying uses about 10 oz of fuel.

suman, I think what you need is a gasoline engine. Take a look at the MVVS 1.6 petrol. If you're really energetic, and can accommodate a poor power to weight ratio, try a Ryobi four stroke trimmer motor. I think you need spark ignition and the ability to run lean A/F ratio. A tuned pipe may help the two stroke if tuned for moderate rpm. That would be a big long pipe for the MVVS.

A model diesel is different than an "regular" diesel. The fuel is not injected into the cylinder an there is no control of ignition timing. It's more like planed pre-ignition. :stupid: