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Old 08-31-2005 | 03:30 PM
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winglift
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From: Worthington, IN
Default RE: Testing and Correcting Trim

Okay, I printed out the trimming chart and flew the Freestyle. I attached two straight sticks to each have of the elevator and there is no difference in deflection. There were two tests that I concentrated on, the first was the CG and I used method 2 since the results of method 1 seemed inconclusive. It required a great deal of down elevator to hold level flight, but I know that the CG is set precisley to specs and that doesn't make sense to me. I also did the side thrust test which is similar to what you suggested that I do and found that the model veers to the left which indicated that I needed to increase the right thrust.

Now, here is the question. Although it is set up according to specs, why would the CG and Thrust be so far off? I did put the largest size engine, and perhaps more, in the airplane which is a YS .63S, but still balanced it to the prescribed CG. Not sure about the right thrust?