GREAT!! thanks a mint guys, my brother does not really have the money for a new airframe, motor etc. We want to keep his nexstar for his kids to learn with or we would just transfer things.

He can afford the rx and servos or the engine.I will buy him this engine then I am going to build him a 4mm coro airframe, that will look remarkably like I followed the dimensions of the Tiger 60 kit or something,no no inspired by, not copied...

A buddy of ours has one of these corotigers that is an amazing flyer, he is going to help me with the build. he says at least the .75 engine is a must so I was hoping for the tower brand

Thanks again !!