ORIGINAL: speedracerntrixie
Before I can answer that question I have to ask a couple questions of you. Are you sure the CG is where you want it? Have you measured the airplane and know where your incidences and thrust angles are? Properly trimming and airplane starts with having it built strait and having the CG set where the airplane is flying close to neutral then the fun can begin.
I think the CG is pretty close. It is at the recommended location and the plane (World Models Chipmunk) flies inverted with slight down elevator pressure. It slows well for landing and is easy to flare to a 3-point landing. I take this to mean the CG is about right. Haven't measure the plane. I bought it used a long time ago and finally decided to try it out and decide if it is a keeper. It flies really well and it's a keeper.
Downthrust must be pretty close as when I throttle up, it just speeds up with little change in pitch. I just realized that all of this has been done with the gear down and should be done with the gear up (except the landing
).
I realize it is not a pattern plane, like my Focus Sport, but it flies surprisingly well and is a lot of fun.