Just a word of advice... I've owned three of the build up kits of this airplane and I can tell you without a doubt, the vertical stab is NOT BIG ENOUGH to put a stupid massive engine on it. It’s a scale airplane; don’t even consider anything larger than a 1.20 FS. If you do it's a waste of money for the engine and the airplane. Here is a rule of thumb: With the exception of turbines, if your engine cost twice as much as your airplane, it's too big!