Flight Control Documentation

Sheet 1 Elevator Control System Schematic

Horizontal Stabilizer Incidence

I ran across an article in Issue #39 of the KR Newsletter from September 1978 that outlined the correct stabilizer incidence vs. airspeed.

Mark Langford's KR2S is flying with 1 deg wing root incidence, 2.25 deg washout, and -0.75 deg horizontal stabilizer incidence. He thinks that he will need slightly more nose down incidence for his horizontal stabilizer, perhaps -1.00 degree. This would correspond to a -2 degree delta from wing to horizontal stabilizer incidence. By the time I figured out this relationship, I had already built the horizontal stabilizer per plans at 0.00 degrees from the horizon. With my wing set at +1 degree incidence and my tail set at zero degrees this gives me a delta of 1.00 degrees. Looks like the horizontal stabilizer is one more thing that I will need to remove and reinstall. I will most likely go with -2.00 degrees splitting the difference between the theoretical value and Mark's experience.

Home