Pilot's Operating Handbook
Section 6
Weight and balance
Edition 0 - March 05, 2019
Rev. 0
Page 6.4.2
Utilization of weight and balance graph
This procedure determines the airplane weight and balance characteristics for flight.
Select the units for the weight and balance determination, either m and kg, or lb and in,
and use the dedicated form - see figures 6.4.3 or 6.4.4, appropriate to the chosen
units.
1)
Record the basic empty weight
(1a),
moment
(1b)
and CG (MAC %)
(1c)
from
the last weight and balance report - see sample of weight and balance report,
figures 6.4.1 and 6.4.2.
2)
Record the expected loading
(2a)
and compute each associated moment
(2b)
.
3)
Compute zero fuel weight
(3a)
and moment
(3b)
as sum of all the above
weights
(1a)
+
(2a)
and moments
(1b)
+
(2b).
4)
Check value
(3a)
to be below maximum zero fuel weight.
5)
Compute zero fuel weight arm
(5)
and CG (MAC %)
(5c)
using given formulas.
6)
Record the loaded fuel
(6a)
and compute associated moment
(6b).
7)
Compute ramp weight
(7a)
and moment
(7b)
as sum of zero fuel weight
(3a)
+
loaded fuel
(6a)
and moments
(3b)
+
(6b).
8)
Check value
(7a)
to be below maximum ramp weight.
9)
Compute ramp weight arm
(9)
and CG (MAC %)
(9c)
using given formulas.
10)
Record the expected taxi fuel (negative value)
(10a)
and compute associated
moment
(10b).
11)
Compute takeoff weight
(11a)
and moment
(11b)
as sum of ramp weight
(7a)
+
taxi fuel
(10a)
and moments
(7b)
+
(10b)
.
12)
Check value
(11a)
to be below maximum takeoff weight.
13)
Compute takeoff weight arm
(13)
and CG (MAC %)
(13c)
using given formulas.
14)
Record the expected trip fuel (negative value)
(14a)
and compute associated
moment
(14b)
.
15)
Compute landing weight
(15a)
and moment
(15b)
as sum of takeoff weight
(11a)
+ trip fuel
(14a)
and moments
(11b)
+
(14b)
.
16)
Check value
(15a)
to be below maximum landing weight.
17)
Compute landing weight arm
(17)
and CG (MAC %)
(17c)
using given formulas.
18)
Plot zero fuel weight, takeoff weight and landing weight on weight and balance
diagram.
PIM - DO NOT USE FOR FLIGHT OPERATIONS
