The flying king is like a big trainer. It is designed for a max 90 size four stroke. Why would you do it?

Thats always the big question. At the smaller size (120 size plane) I think Glow still has it. The added weight and the loss of power would keep me from doing it. Unless.... Unless you were to put in a light weight gasser like the MVVS from morris hobbies. Then its only a matter of parting with $400.