ORIGINAL: tacx

I think the understanding of CG gets confused many times, for some newbies and even some experienced guys, because when we try to ask or answer questions regarding it, the explanation is difficult.

Every plane has a center of gravity (CG). It is the ''actual'' point at which the plane sets level. If you add weight to the front or the back the ''actual'' center of gravity for that plane changes. This is not to be confused with where the center of gravity ''should be''.

The ''should be'' or ''recommended'' CG is a particular spot that you want the plane to set level. This spot is determined in a couple of ways. The manufacturer or designers suggestion or, when that is not given, it is figured out using a formula to find that spot. You then have to add or adjust weight to get the ''actual'' center of gravity to match the ''should be'' center of gravity.