Embraer EMB145 Operation Manual page 966

WEIGHT AND BALANCE
145 140 135 LB
OEW/OEI DETERMINATION
The OEW (Operational Empty Weight) is the BEW plus the weight of
the operational items (crew, catering, lavatory fluid, etc.). The OEI
(Operational Empty Index) is the index for the OEW.
In order to determine the OEW and OEI, it is necessary to add to the
BEW all the weight and moment variations referent to the operational
items. The BEW is obtained from the airplane weighting record.
Example: Computation of OEW/OEI for the EMB-145.
For a BEW equal 26572 lb and BEW moment equal 16546149.55 lb.in:
Item
BEW
Lavatory fluid
Pilot & Co-Pilot
Flight attendant (fwd)
CREWMEMBER ROLLER
BAG
PILOT FLIGHT BAG
FLIGHT ATTENDANT KIT
OEW (not
catering)
Airplane arm =
Airplane Index
(not including catering)
NOTE: - Catering weight was not considered above because its
weight is not constant. In our example we are considering
catering as a separate item (see Index Influences).
- Unusable fuel, hydraulic fluid, engine and APU oil are
considered included in the BEW.
- The values above are an example. Use the airplane actual
BEW for determining the OEW.
Page
12
1-06-30
AIRPLANE
OPERATIONS
MANUAL
including
16691855.1 7 27241.43
(
×
27241.43 612.74
=
17400
Code
02
Weight
(lb)
26572
44 813.38
15.43 810.24
380 142.91
170 188.97
30 196.85
20 155.51
10 196.85
27241.43
=
612.74
)
−
590
+
13
Arm Moment
(in) (lb.in)
- 16546149.55
35788.72
12502.00
54305.80
32124.90
5905.50
3110.20
1968.50
- 16691855.17
inches
=
49IU
REVISION 31