RCU Forums - View Single Post - Pilot Yak54 30cc help with getting it trimmed correctlly
Old 02-27-2014, 11:29 AM
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speedracerntrixie
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Originally Posted by ggate
Make sure im hearing you correctlly. 0 degree stab and +5 degrees incidence on wing. I hope this is correct-be hard to change if not.
Engine thrust i can adjust.
Yes this is correct, this is done for two reasons. First the wing needs to be at a slight + to generate lift. I set the wing at + so I'm not flying the whole airplane at +. Yes it acts opposite when inverted but most guys are used to forward stick while inverted. The second is that it allows slightly forward CG without up trim. This will help tracking in horizontal flight ( forward CG ) and vertical tracking ( zero elevator trim ). Right thrust is to compensate for torque or P factor or whatever they happen to be calling it this week. The only need to adjust engine up and down thrust is to correct for the airplane pulling or tucking on an up line. With this type of airplane never adjust engine thrust to fix a horizontal flight issue.