HI Guys,
Just bought a Katana, and I am putting an O.S 61fx motor in it, running on a 13x6 Prop. The engine weighs at 19.4oz. Does anyone have an engine that weighs about the same in their Katana 50? How does it fly? I know the landing needs to be a little hot, but that is something I am used to anyways.

Also where did you guys mount the battery to compensate for the heavier engine?
Cheers Guys. Here is a pic of My old Katana that crashed due to a faulty radio on the Maiden flight, and yes, I'm not kidding