Aspects of Testing With a Counter-rotating Ultra Bypass Engine Simulator

The Boeing Commercial Airplane Company has become active in the design of new technology transports powered by counterrotating ultra bypass engines.

In order to investigate the powered characteristics of such aircraft, a propulsion simulator for wind tunnel installation testing is required. The design requirements, development, initial testing, and planned application of this propulsion simulator will be discussed. Applications will include powered aspects of stability and control, and aerodynamic considerations of propulsion integration.