ORIGINAL: Loopman
Hey Guys,
I have a plane that had a ST2500 on it and I want to go to the gas equivalent of that engine. How do you determine what gas engine would replace a glow engine? The ST2500 was swinging a 20x6 JZ prop, I need to swing that same prop on a gasser and get the same thrust.
Thanks
Loopman
The average guy here is not going to be able to give an answer to your same prop question.
Why are you soooooo over proped on the ST2500????? my ST's ran 10500 on an APC 17 x 6 pumped on a Bisson muffler (~16 lbs thrust).
I currently still run a ST3250 on an Evolution 18 x 6 beechwood prop on a bisson muffler (~ 18 lbs thrust).
I can only imagine how low on the performance curve that 20 x 6 prop is on that engine.
OK nuf said, basic question how do you determine what engine to another:
1. Weight.
2. RPM on
same prop
3. Mounting considerations.
4. Cost.
Any of the common gas 26's will give better rpm on your JZ 20 x 6 than your current choice. (I might go with a beam mount like the MVVS or EVO).