Originally Posted by Jeffryz

mrdhud, Thank you for finding that info. However, my concern is not being able to locate the specification CG point. The 4.5" from the LE top, is from the pica spec sheet. My question is how to support the plane so it pivots correctly. My setup is to suspend the plane top wing from L-brackets at the 4.5" mark and measure the angle of the thrust-line for level. This works fine for the planes with a mid-fuse mounted wing, But the Waco top wing is well above the weight centerline of the plane so it hangs like a plum bob instead of a teeter totter (sp). The 4.5" point is in front of the lower wing LE so I can't use it for the pivot point. So, what kind of fixture would let the plane pivit so the CG is accurately indicated?
JJ