载重平衡标准术语和定义 (STANDARD TERMS AND DEFINITIONS of WEIGHT AND BALANCE )

STANDARD TERMS AND DEFINITIONS
EQUIPPED EMPTY WEIGHT (EEW) ORMANUFACTURER EMPTY WEIGHT (MEW)
It is the weight of structure, power plant,instruments, interior furnishings, systems, optional, portable, and emergencyequipment and other items of equipment that are an integral part of theairplane configuration. It is essentially a dry weight, including only thosefluids 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)
It is the BEW plus the weight of the operationalitems.Operational items are those necessary for airplaneoperation and not included in the BEW.The operational items are: