What is dry fighting weight?

Dry fighting weight (DFW) refers to the weight of an aircraft without any fuel, oil, or other operational fluids onboard. This weight includes the basic structure of the aircraft, engines, avionics, and any necessary equipment required for basic flight operations.

DFW is important as it affects the aircraft's performance, including its maneuverability, range, and payload capacity. It is also important in determining the maximum weight that an aircraft can carry.

Aircraft manufacturers provide DFW values in their specifications, and pilots must ensure that their aircraft's weight and balance are within the limits specified in the flight manual. Failure to comply with these limits can result in decreased safety margins and reduced performance.