I had one with a TT 61 and it was an awesome combo (dumb thumbed it in after about 100 flights, dam I miss that plane). I highly doubt a 46 will have the jam to fly it will. When you get a decent engine for it toss out the hardware that came with the kit and buy some good quality dubro stuff, you'r gunna need it. I had a buddy with this same plane and a 75 for power. The elevator horn busted in flight and it resulted in the longest trail of balsa and parts I have ever seen.