The Goldberg Protege .60 ARF is on sale right now at Tower Hobbies for $129.99. You could fly it with an O.S. .65 LA or Thunder Tiger GP-61 and enjoy easy smooth flying like your LT-40 if you want to fly it that way, or crank up the throttle and enjoy some spirited aerobatics.



The Protege is a nice look high wing aerobatic trainer that will fly very well with any of the inexpensive .60-size 2-strokes on the market. It would be just as easy to fly as your Sig LT-40, but perhaps more aerobatic, and will give you a different "flavor" of trainer flying.

Good luck and good shopping!