OK Britbrat...that's it, let go outside and settle this [sm=punching.gif]

Just kidding , you are right, I did not take into account the draggy airframe. I think the 11X4 would be good but not knowing a whole lot about that engine, wouldn't that be to high of an rpm at full throttle, just asking. [sm=confused.gif]

Merry Christmas [sm=biggrin.gif]