The aircraft empty weight includes the manufacturers empty weight, which is sometimes referred to as the green weight, and the fixed equipment weight.
The fixed equipment weight includes such items as:
avionics equipment
air-conditioning equipment
special radar equipment
auxiliary power unit (APU)
furnishings and interiors
other equipment needed to operate the aircraft during its intended mission
The aircraft empty weight can be related to the aircraft take-off weight in the following equation:
where:
|
is the Class I aircraft take-off weight. |
|
is the Class I mission fuel weight. |
|
is the mission payload weight. |
|
is the mission expended payload weight. |
|
is the Class I mission trapped fuel and oil weight. |
|
is the mission refueled fuel weight. |