ORIGINAL: Silver Flyer
I am confused by some post I have been reading, I hope some one can straighten me out. Several have stated that at the recommended 100MM from the leading edge their model was tail heavy. Then they state that moving the CG to 90 MM from the leading edge corrected the tail heavy problem. In my mind if its tail heavy at 100MM from the LE and you move the CG to 90MM from the LE it is going to be even more tail heavy. What am I missing here? Thanks
I'm going to suggest that the person you quote added weight to the nose. That moves the balance point (the CG) toward the nose (in this case, 10 mm closer to the nose.)
I see the plane balanced on a support at 100mm behind the leading edge, and a few ounces added to the nose. The nose tips down. In order to get the plane level, the support is moved ahead 10 mm (to the new balance point, 90 mm behind the leading edge.)
Does that help?
Best wishes,
Dave Olson