AVISTAR ENGINE SIZE
I have a Hobbico Avistar 40 and I was wandering if I could use a ENYA 35 II even though it request that you use a 40 to 46 engine. I have a OS40, but I want to put the OS on a 3D plane (Carl Goldberg Matrix 40 extreme). I only have the 2 engines available right at this time. What do you guys think.