Hi guys,

I'm buying a cmpro marathon linked bellow:

http://www.cmpairplane.com/aerobatic...on%2020cc.html

It shows the G20ei zenoah engine in the picture provided by manufacturer, i have contacted them and was told that it was the engine they did the test flying with and it performed well with that model and also prop hanged despite the weight of the model. I was thinking about the G26ei but i am not sure if it will fit in the place of the g20, does anyone know?

Furthermore, i don't know where to order one online from with the tuned pipe for it. Anyone know a website i can purchase everything from in europe? Even from US is fine.

I would also like to know what prop i should order if i were to use this with a tuned pipe to get the maximum static thrust and also without a tuned pipe as i cannot find any online manuals on the G20.

Any comments are welcome, i know the plane is a bit heavy but i like the looks and it fits in my car easily from the given dimentions.

Thank you.