6-3
Read the GP and GH values from the scales (GH represents the sum of the values
indicated by the scales under the main undercarriage wheels).
Calculate the total empty aircraft weight
kg
G
G
G
H
P
aircraft
empty
Calculate the empty aircraft centre of gravity distance from the datum plane (wing
leading edge)
mm
G
b
a
G
b
x
aircraft
empty
P
CG
Calculate the empty aircraft centre of gravity position in % MAC
MAC
MAC
c
x
x
CG
MAC
%
100
%
a
840 mm
b
690 mm
c
35 mm
MAC
1230 mm