SD 260 problem

[whaturi]

Just got my first few trim flights on my 35% 260 with DA 100. I started with 0 degrees on all surfaces and the engine. I measured with a meter during the build. After flying it and adding washers, it is now just about right with over 3 degrees up thrust! What's the deal? I am trying to get this baby as straight as possible for competing, so it bothers me a bit. Is this just a function of the design\layout of the airframe??

[SleepyC]

Did you check the wing incidence on the main wings and the stabs?
I'd start there, and then start messing with the thrust.
I'm just saying this because I went through the same thing last summer with a BRAND X Yak.

After a fellow modeler and FG member with many more years of expierence told me to check, I couldn't believe it.

My stabs were both messed up.
the one was at +1.5 deg and the other was +2 deg.

The main wings were better 0 deg and + 1 deg.

After I fixed this the plane just needed the 3 deg of right thrust.
I'd say start with checking that!
Hope that helps!

[snap]

All of my planes require about 3degrees of right thrust,and 0-1degree of up or down
when I get close I start cutting washers from coke cans ,when you go to a contest or fly -in mesure from tip to wing on each side of the prop it will blow you away seenig how much right thrust is being used .Incidently My 35% SD260 HP version came with three degrees of right thrust built into the motor box.