Jack,

trimming using the wing incidence is a very powerful tool. Many of the guys flying the Giant Scale models don't trim their models this way but it can help things a bunch. Just like many of us do on our pattern models. The one thing that you can notice is that the pattern models have devices that can be built into the model to adjust the wing incidence. These devices are too small to be used on big model so most guys don't bother.

A good test to see if it will help...raise or lower both ailerons slightly. Like a Flapperon type thing...Both ailerons up or both down. If you drop both ailerons say 1/16-1/8th inch...then go fly it and see what happens. If the result helps the model performance then give the model more positive in the wing and put the ailerons back to neutral.

If you need less incidence the same thing works with raising the ailerons up...

Just a word of advice. I tend to fly my model much more nose heavy than most. They track better this way. When you have a good properly trimmed setup it is very common to have the a slight pull on the down lines. When you have good uplines but the model pulls on the downlines I add positive to the wing...Too much positive in the wing and the model will pitch to the belly in up lines..meaning too much down thrust type of thing. The reason you just added more down thrust in relation to the wing by moving the wing positive. I have also seen situations where up lines hands off are fine but if you touch the rudder it will pitch to the belly on the upline. When you are flying knife edge the mixing is already setup and perfect...yet on uplines with just a breath of rudder it pitches belly this is too much positive in the wing.

The angle the wing flies at really sets the fuse angle in the air. If the model looks like its flying along tail high then decrease wing incidence, Tail low like the model looks tail heavy when flying then increase positive in the wing.

All these things interact and there are lots of ways to trim the model to accomplish the goals. But Incidence adjustment is a very powerful tool to make the airplane fly better. The guys that fly pattern planes learned this and now 90% or more of the plug in wing models built today get gator wing adjusters. It makes the trim process so much easier.

A mix can help this but I would dial a little + int he wing first and see what happens. Like I said the aileron droop will tell you if it will help or not. Be aware positive in the wing means needs down elevator trim. SO be prepared to give a little 3-4-5 clicks of down trim....Trim the model for hands off level flight..Then do a long downline to see what happens.


Good Luck

Troy Newman
-Team JR, Central Hobbies, ZN Line, YS Performance, Cool Power Fuels
-AMA 163080
-NSRCA 2239