Method of determining a comparison of an aircraft's performance capabilities with performance requirements

摘要

A method for providing an indication of the capability of an aircraft to dissipate altitude (20) and speed (12) in comparison with descent and deceleration requirements necessary to establish stabilized flight conditions prior to landing on a runway. By referencing a shortest flyable path to a target point (10) and subsequently to the runway, the present invention provides a method to evaluate energy state, independent of any predetermined flight path. Tangible scaling (16) of output values provides an indication of the effects of subsequent maneuvering and deployment of aircraft devices in usable terms that can be directly applied without further interpretation or conversion.