Just flew my new Sukhoi yesterday. Everything went well as far as maiden flights go. The next time out I want to start working on trimming the plane, but I found a conflict for CG adjustment based on the trimming charts I've looked at online.

Here are the tendencies I've noted during the first 6 flights:

- Full throttle, level flight - chopped throttle produced no change. (Up/down thrust is ok)

- Vertical up-lines require a very slight amount of right rudder. (I'll add a small amount of right thrust until I get that trimmed out)

- Vertical down-lines are perfect. (Decalage, wing incidence ok)

- Inverted flight requires quite a bit of down elevator. (* Trim chart specifies moving the CG BACK)

- Knife-Edge flight requires quite a bit of up elevator, and a slight bit of aileron. (* I can mix out the roll coupling, but the trim chart specifies moving the CG FORWARD to compensate for the tuck)


As you can see the adjustments for the last two items conflict. Does anyone have any suggestions on how I might eliminate both tendencies? According to the trim chart, I'd have to make one tendency worse in order to eliminate the other.

One final comment: I have the CG at the conservative starting point based on the manufacturer's suggestions. I'd like to move it back further to make the plane a bit more capable.