TOMARK, s.r.o.
Airplane Maintenance Manual
Chapter08 Leveling & Weighing
Issue: 11.AUG 2016
Page 79
You will get the total weight of the airplane as the sum of m
R
+m
L
+m
F
.
▶
Calculate the distance of the CG from the wing’s leading edge by
using the formula:
x
T
= ((m
R
+ m
L
) · L
M
– L
F
· m
F
)/m
T
.
▶
Calculate the front-most position as % MAC by using the formula:
x
T
[% MAC] = x
T
/ MAC · 100 %.
Weighing of the airplane for the establishment of the rear-most CG
position as % MAC:
▶
Put 2 × 7,5 kg weights into the luggage compartments
▶
Fill the tanks with the minimum allowed take off fuel quantity (for a
30-minute flight).
▶
Load both seats with the maximum allowed crew weight that will
cause the airplane to reach its MTOM of 600 kg).
The weighting procedure is the same as in the case of establishing of
the front-most CG position.
The calculation procedure is the same as in front-most CG position
with correction on the maximum permissible weight of 15 kg of
luggage. The correction value of momentum on the maximum
permissible weight of luggage in the luggage compartment is 21 kg.
▶
Complete the following weighing record.
