Bill,

Thanks for another reply.

o, k, I'm glad I was reading you right about specialized meaning the puropses for the 4c engines. It didn't even occur to me that you meant they needed specialized training to be able to use them. So we were on the same page there.

I am getting some information too, that the Eagle ll would need extra reinforcement of the fuse and motor mount with maybe even some neoprene sandwiched between the motor and the mount to help absorb vibration so the 4c won't break the plane over a period of time.

I'm not sure I'm up to that.

I'm thinking I might do well to either look for a plane designed for a 4c engine that could also serve as a trainer, or, just get one of the 2c engines as you recommended.

Oh well, back to the catalogs for more research.

Thanks for the insights Bill,

elad