ORIGINAL: sc204
ORIGINAL: Jeff Boyd 2
My CG is at 140mm from LE at root. I only fly Pattern with mine, so I prefer the 'locked in' feel at this CG.
WOW . . You have something wrong there ! ! . . My elevator is trimmed dead neutral . . as are the ailerons. This little ship trimmed out absolutely perfectly IMO.
I would doubt that there is anything wrong with the manufactured settings on your plane. All parts are lazer cut (i.e. computer controlled from the ONE program) . . and I believe they are jig built also.
From memory, I think my wings had +.75deg positive incidence on the wing (stab at zero) . .
Set your fuse up with the stab at zero, and tell us what your wing incidence is . . you may need to file the holes in the fuse for the carbon pins to get it somewhere near .5 to 1deg positive incidence (LE up). . . then fit new ply doubler with corresponding hole to the inside of the fuse. I would be SHOCKED if you need to do this though . . weird !
Cheers, JB
If my stab is 1.4 degrees positive from the wing then the wing will be 1.4 degrees neagative with the stab at 0. The wing is pretty close to level with the top of the fuse (canopy area) About .1 degree different. I suspect that is likely correct.
Stuart
Hahahaha . . Yeah . . that was my "cute" way of suggesting to double check it.
The wing to stab relationship needs to be = stab ZERO / wing PLUS .5 to .75 degree .. if you have a MINUS reading on the wing, that is wrong ! . . and will explain the amount of up trimmed in (looks like about 15 clicks ! )
Unless you want to cut the stab out and re-set it, just adjust the wing incidence by filing the locating pin holes and refit small doublers. You'll need to get your wing/stab relationship correct . . then adjust your thrust after flight checking. This may result in the plane flying in a (very) slight tail high attitude, but that's no problem. It 'presents' better in the air than tail low
Did your stab fit in tight . . needing sanding ???
Just trying to help . .
Cheers, JB