RE: Hangar 9 1/4 Scale Piper Cub ARF???
Wnglift,
I put he FG-30B in mine and love it. Like the guys have said, 1/3-1/2 power for cruising looks about right. I thought about the 21, but really enjoy excess power, just in case. Additionally I wanted to be able to slap floats on it without a second thought.
I really hate the sound of the gas two strokes and didn't want my Cub experience diminished by an annoying sound. The 30 is so quiet and scale sounding that it draws compliments every time it heads to the field. The other nice thing about gas is that I have about three to four hours on the plane and still am using my first gallon of gas. I set my timer for 30 min, and still land with a 1/3 tank...those gas four strokes are silly efficient.
The one thing to note is that the latest Saito instructions clearly say the motor does not need to be choked, and while that may be true if you use a starter, I find that with a simple choke tool I can easily hand-start the plane. I can explain more if anyone is interested
Dave