RE: H9 Twist 40 engine and prop choice???
Hi Rap.
The Twist is a little on the heavy side to start with but OK..
EVERYONE in our club has 4 strokes on them and are VERY limited
on what the plane can do...
I put off building mine for 9 months because I THOUGHT the plane
had problems...
I went in a different direction and installed on OS46ax on the
VERY front of the mounts, installed the battery UNDER the tank
and added NO weight.. ( a little tail heavy but the way I like it )
It will do an inverted flat spin better than any plane I have ever seen..
I will hover and pull out slowly but ONLY with a Zinger 12x4 prop..
160 flights on the plane now and have had a blast with it as it
will out perform all the higher cost 4 strokes..
I like 4 strokes but I do get tired of people saying that you MUST
use 4 strokes to get good 3d flying...