WEIGHT AND BALANCE
145 140 135 LB
AIRPLANE
OPERATIONS
MANUAL
1-06-30
Page
4
Code
02
REVISION 31
INDEX INFLUENCE FOR ERJ-140 MODELS
Item Arm
(in)
Reference
Weight (lb)
Index
Influence
Cargo / Baggage 833.66 1 + 0.016 IU/lb
Forward Galley (*) 208.58 1 - 0.020 IU/lb
Aft Galley (*) 258.26 1 - 0.017 IU/lb
Wardrobe (*) 190.55 1 - 0.021 IU/lb
RH Aft Stowage Cmpt. 728.43 1 + 0.010 IU/lb
LH Aft Stowage Cmpt. 728.43 1 + 0.010 IU/lb
Cockpit Observer 165.35 190 - 4.20 IU
Pax Cabin A (**) 337.37 190 - 2.32 IU/Pax
Pax Cabin B (**) 491.88 190 - 0.63 IU/Pax
Pax Cabin C (**) 654.02 190 + 1.14 IU/Pax
(*) The galley and wardrobe arms are for the standard configuration.
Check the airplane actual configuration arms in the AOM Loading
Section.
(**) For the purposes of this table, the passenger cabin was divided in
three sections. On a standard configuration (44 seats) airplane,
section A refers to rows 1 to 6, section B refers to rows 7 to 11
and section C refers to rows 12 to 16.
Example: Computation of cargo index influence for the ERJ-140.
The ERJ-140 cargo compartment centroid is located 833.66
inches from the airplane datum.
The index influence per lb is:
()
IU/lb0.016
17400
550833.661
I =
−×
=
So, for each lb of cargo loaded in the cargo compartment,
the index increases by 0.016 index units.
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