I forgot to add, the CG is usually (but not necessarily always) figured
to be the leading edge of the wing and all calculations are made from
the CG. It is where everything in front of the CG and everything
behind the CG balance. See the Weight and Balance calculations for the
2-33 (or any glider), which should be in the glider's flight manual.

Raul

wrote:
When the aircraft manf has not done the research or made any
recommendations - how is the location for a CG hook computed?

One example - the SGS 2-33 installations I have seen (not factory) seem
to be far ahead of the actual CG.

TNX

Michael