Definition of Requirements for 5000 Horsepower Class Demonstrator Engine

The formulation of a demonstration engine program is a long drawn out process requiring numerous analyses and continued coordination between the developer and user as well as coordination with the other services. Existing and newly defined aircraft are used in the analysis to determine aircraft performance (payload, range, mission fuel consumption) using both existing and advanced technology engines. Many refinements are made to the advanced technology engine requirements as a result of the analyses and the coordination with other agencies. The final engine never looks like the initial concept; however, it more nearly represents an engine that can meet the requirements for all its intended applications.