In 1945, the Ministry of Aircraft Production placed an order with Rolls-Royce for the Avon with an
axial-flow compressor and with Metrovick for a similar engine, the Sapphire.
For example, the flow of the narrative is often packed with details such as "the prototype Jumo 004 had an eight-stage
axial-flow compressor, eight annular combustion chambers, and a single exhaust turbine" or "the shaft speed of the Jumo 004 was estimated at 16,000 rpm, and the designed thrust rating was 900 kg (1,980 lbs.)."
This book provides a thorough description of an aerodynamic design and analysis system for
axial-flow compressors. It describes the basic fluid dynamic and thermodynamic principles, empirical models, and numerical methods used for the full range of procedures and analytical tools that an engineer needs for virtually any type of
axial-flow compressor aerodynamic design or analysis activity.
In the ASE120, the thrust-producing fan stage of the aero engine is replaced with three
axial-flow compressor stages, and the aero combustor is replaced with the DLE combustor.
For example, GE engineers are developing a high-efficiency 18-stage
axial-flow compressor for the 7EC that adds a zero stage to the 7EA compressor design, increasing mass flow from 664 pounds per second in the 7EA to 769 pounds per second in the 7EC and the pressure ratio from 12.4:1 to 14.2:1.