Totals for moment, center of gravity, and gross weight
should then be checked against the aircraft's approved
operating limits.
PERCENT MAC
(%MAC)
This function computes the percent of mean aerodynamic
chord, or the percentage distance of the center of gravity
from the leading edge to the trailing edge of the wing.
Leading edge mean aerodynamic chord, the center of
gravity, and the mean aerodynamic chord. In this example,
leading edge mean aerodynamic chord (LEMAC) is 22.29,
the CG is 37.27, and the mean aerodynamic chord (MAC)
is 61.4.
Select
% M A C
from main menu
Press
ENTER
and the display will prompt for
L E M A C
Key in
2 2 . 2 9
and press
ENTER
36
The display will prompt for
C G
Key in
3 7 . 2 7
and press
ENTER
The display will prompt for
M A C
Key in
6 1 . 4
and press
ENTER
The display will read:
