Empty weight
The empty weight of plane is based on its weight without any payload.
Standards
Many different empty weight definitions exist. Here are some of the more common ones used.GAMA standardization
In 1975 the General Aviation Manufacturers Association standardized the definition of empty weight terms for Pilot Operating Handbooks as follows:Standard Empty Weight includes the following:
- Empty weight of the airplane
- Full Hydraulic Fluid
- Unusable Fuel
- Full Oil
Non-GAMA usage
Previously the following were commonly used to define empty weights:In this definition Empty Weight includes the following:
- Empty weight of the airplane
- Undrainable Oil
- Full Hydraulic Fluid