ORIGINAL: Rune
Hi
I have a Spark that flies just great but have one problem.
the Cg is set around ~25-27% depending wich battery I put in , mixing is at minimum , some trothel to elevator some rudder to aileron and a smal mix from rudder to elevator.
In the trialgel in P13 I have some problems the first leg (that I think its normal) it need to be held so it not dive, the second its up to me to fliy it nice but the last leg it pitches upwards I tried yesterday to let go off the elvator to see if I put in some but still it climbed before and after the roll.
Is it my CG that are to much forward, I have moved the battery a bit forward and backward but no big re****.
The indience og stab is 0 as it should be the wing is about 0.5 positive and thrustline are set to get it to go straight in the uplines.
On my Dynamic I'm running 1 degree positive on the wings and a little positive on the stab. CG is at 27%. If you follow Bryan Hebert's triangulation method your model should do 45 up and downlines without any real input to maintain the line. In 45 downlines I do drive it down say 1/8th throttle.
Regards,
Jason.