Embraer EMB145 - Page 987

AIRPLANE
OPERATIONS
MANUAL
WEIGHT AND
BALANCE
REVISION 29
1-06-40
Page
21
Code
03
EMB-145LR Constrained CG Envelope
26000
28000
30000
32000
34000
36000
38000
40000
42000
44000
46000
48000
50000
52000
10 20 30 40 50 60 70 80 90
INDEX
WEIGHT (kg)
Figure 2
CONSTRAINED CENTER OF GRAVITY LIMITS
In order to determine the constrained CG envelope, the allowances
must be added to the certified CG envelope.
The table below shows the determination of the forward constrained
limit for the EMB-145LR.
For Takeoff & Landing & In-flight limits the allowance used was:
• -10155.15 lb.in (landing gear)
• -4017.00 lb.in (forward flight allowance)
• -152772.23 lb.in (forward seating allowance)
-166944.38 lb.in = total fwd allowance
NOTE: The allowance at 27337 lb is -10155.15 lb.in , because in this
range of weight it is impossible to have passengers loaded, so
the seating allowance was disregarded and also the flight
allowance.
For Takeoff & Landing limits the allowance used was:
• -152772.23 lb.in (forward seating allowance)