ORIGINAL: buzzingb
I was reading a post on here a few days ago about the OS65LA being as powerful as the FX or ball bearing engines. I wonder if that is true. I kind of doubt it. If you have actual rpm test data lets hear it. The bushing engine it ran once was the Thunder Tiger 42 it didn't have that good of power but ran very well. It wouldn't pull a profile plane verticle very far and you could forget hovering.
You are missing sth.
The OS 65 LA is more powerful than the OS 61 FX.
Unless you'll use a prop with 12'' dia and 7'' pitch.
Otherwise is MORE powerful.