M Cunningham’s scientific contributions

This paper describes the development of an engine exhaust IR suppressor for the Bell 205 helicopter. The design methodology of combined computer analysis and scale model testing was applied to produce a final aerothermal shape that met performance requirements. Prototypes were later built and tested in an engine test cell, and in flight on a Bell 205. Results from these prototype tests are discussed in the companion paper "Part II -Engine & Flight Testing", submitted to the 11 th CASI Propulsion Symposium.