Empty-Weight Center of Gravity Formulas
A chart like the one in Figure 3-4 helps visualize the
weights, arms, and moments when solving an EWCG
problem, but it is quicker to determine the EWCG by
using formulas and an electronic calculator. The use of
a calculator for solving these problems is described in
chapter 8.
There are four possible conditions and their formulas that
relate the location of CG to the datum. Notice that the
formula for each condition first determines the moment
of the nose