If you go back to the begining of this thread you'll find that a .46 either a LA or FX or in my case a TT.46 Pro is plenty of power. It will be easier to balance with the smaller motor as this bird is tail heavy..... Cowling is tight and with a .60 you will probably hog out a lot of cowl.... I don't think anyone is flying with cowl on anyway. due to lack of cooling air intake....If pictures don't come up with this reply, you can go to my gallery and there are a couple there...Cliff