I have a G26 on my Super Stearman with a Master Airscrew 18x6 prop and it's perfect. It's just a little loud with the stock muffler, but sounds way cool. It doesn't fly it real fast which makes it look very scale in the air but still has plenty of speed on the down lines, etc. The plane weighs about 16 lbs. but it's not a problem with this engine and prop. It floats in real nice and very scale on final approach and is really a lot of fun. I did go with the four aileron set up and have a 1650mAh NiMh. battery. You won't be disapointed with this set up!