The tail moment for reference purposes, is measured WAC to SAC. What I do is determine where the AC's are, and then tape measure. The tail moment to wing MAC ratio is closer to 3 on some modern pattern models. Most fall into the 2.5 area.
MattK
ORIGINAL: TORINO
talking about the tail moment, generally speaking of course, how long is the tail moment in comparisson with the wing chord? 1- 1/2 times , 2 times, .....
thanks