RE: Extreme Flight Extra 300, 78
I've got the OS GT33 engine, ES30G CF pipe and a home made Hyde clone isolator mount (similar to MTK's) in mine. Mine is somewhat heavy at 13#. Awsome power. Tons of vertical. I'm now using the Biela 19-10 prop. I couldn't be happier. The OS tends to want to start backwards until you get the technique down. The engine has gobs of compression. The Mintor 38 did not want to swing this prop.