Embraer EMB145, Operation Manual

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WEIGHT AND
BALANCE
AIRPLANE
OPERATIONS
MANUAL
1-06-40
Page
22
Code
03
REVISION 29
Forward Center of Gravity Limits:
AFM values Allow- Constrained values
Wt. CG arm Mom. ance Mom. arm CG
(lb) (%) (in) (lb.in) (lb.in) (lb.in) (in) (%)
Takeoff & Landing & In-flight limits:
27337
30.0 608.64 16638392 -10155 16648547 609.01 30.3
29542 12.0 588.34 17380740 -166944 17547684 593.99 17.0
34170 12.0 588.34 20103578 -166944 20270522 593.23 16.3
Takeoff & Landing limits:
38000
14.0 588.34 22356920 -152772 22509692 592.36 15.6 *
48501 18.4 595.56 28885256 -152772 29038028 598.71 21.2 *
In-flight limit:
38000
12.0 588.34 22356920 -166944 22523864 592.73 15.9
48501 16.2 595.56 28885256 -166944 29052200 599.00 21.5
* points disregarded because of the existence of more limiting points at
the same weight.
The table below shows the determination of the aft constrained limit for
the EMB-145LR.
For Takeoff & Landing & In-flight limits the allowance used was:
•
+192360.00 lb.in (aft flight allowance)
•
+142588.92 lb.in (aft seating allowance)
+334948.92 lb.in = total aft allowance
NOTE: The allowance at 27337 lb is zero because in this weight range
it is impossible to have passengers loaded, so the seating
allowance was disregarded and also the flight allowance.
Aft Center of Gravity Limits:
AFM values Allow- Constrained values
Wt. CG arm Mom. ance Mom. arm CG
(lb) (%) (in) (lb.in) (lb.in) (lb.in) (in) (%)
Takeoff & Landing & In-flight limits:
27337 30.0
608.64 16638392 0.0 16638392 608.64 30.0
29542 43.0 623.30 18413529 334948 18078581 611.96 32.9
37698 43.0 623.30 23497163 334948 23162215 614.41 35.1
42594 39.5 619.36 26381020 334948 26046072 611.50 32.5
48501 39.5 619.36 30039579 334948 29704631 612.45 33.4