I would fly it on the G45. I had this same ARF, and it's a very good IMAC plane. I had a G38 on mine. It was under powered, and a tad heavy at 16 1/2 lbs. I had fun with it... I sold it to my buddy, and he is still flying it today. He loves it. I would guess the engine is 15 years old, and the ARF is 8 or 9 years old.