Charlie,

I believe the yard stick method would result in an incorrect calculation. Because the incidence is calculated using the center of the leading edge and the center of the trailing edge and not the bottom edge of the airfoil.

When I built my "Pete 'n Poke" I checked the incidence with a meter and it was 1 degree positive. I also, removed the wing and with the stab level (0 degrees), placed a level on the top of both wing struts (front to back) and the struts were also level. The 1 degree incidence with the wing attached was a result of the center of the leading edge was 1 degree positive with respect to the bottom of the wing.

Therefore if my crude calculations are valid the "Poke's" incidence could be measured with a simple bubble level. This method is limited to the "Poke" and assumes my build was accurate as designed.

I would appreciate any comments on this unorthodox calculation.


DaveB