AIRPLANE
OPERATIONS
MANUAL
WEIGHT AND
BALANCE
SEPTEMBER 20, 1999
1-06-10
Page
1
Code
01
STANDARD TERMS AND DEFINITIONS
EQUIPPED EMPTY WEIGHT (EEW) OR MANUFACTURER EMPTY
WEIGHT (MEW)
It is the weight of structure, power plant, instruments, interior
furnishings, systems, optional, portable, and emergency equipment
and other items of equipment that are an integral part of the airplane
configuration. It is essentially a dry weight, including only those fluids
contained in closed systems such as oxygen, fire extinguisher agent,
landing gear shock absorber fluid, etc...
BASIC EMPTY WEIGHT (BEW)
It is the MEW plus the weight of the following items:
− APU oil
− Engine oil
− Hydraulic fluid
− Unusable fuel
OPERATIONAL EMPTY WEIGHT (OEW) OR DRY OPERATING
WEIGHT (DOW)
It is the BEW plus the weight of the operational items.
Operational items are those necessary for airplane operation and not
included in the BEW.
The operational items are:
− Crew and crew baggage
− Navigation kit (manuals, charts, etc.)
− Catering (beverages and foods) and removable service
equipment for galley (such as standard units, etc.)
− Lavatory rinse water
− Lavatory chemical fluid
ACTUAL ZERO FUEL WEIGHT (AZFW)
This is the OEW plus actual payload.
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