Armfield made a small turbine engine, Axial Flow Gas Turbine, according to documentation.

-It is a study engine for teaching engineering to maintenance technicians and aeronautical engineer students. It is mounted on a structure, including a fuel tank, battery, computer, instruments to measure thrust, rpm, temperatures, pressures, and airflow.

"Armfield CM-4"

-In this case of the CM-4, we note that the compressor is centrifugal.

-The CM-4 gives 65 kW (90 hp), with an equivalent thrust of 300-400 N. It uses Jet A fuel, kerosene but may also use some equivalent.

-It has an exhaust temperature of 800° C (1472° F), and a mass flow of 0.7 kg/s. The centrifugal compressor and the axial turbine rotating at 70,000 rpm.

"CM-14 Test turbine"

-Derived from the CM-4 are the CM-14 and now the CM-14-10.

--The CM-14 delivers 200N typical thrust. It can use the following fuels: Paraffin, Jet A-1 and  JP-4/Kerosene.

-It has an exhaust temperature of 800° C (1472° F), and a mass flow of 0.9 kg/s. Centrifugal compressor and axial turbine rotating at 105,000 rpm.

-The Armfield engines are called Olympus and are considered aircraft engines. The CM-14 is Olympus HP.

-Although by the appearance it seems to use an axial compressor and although it is mentioned in some documentation, it remains a centrifugal compressor.

-The most interesting is its use for teaching and in the case of CM-14-10 is prepared for mounting it on the floor, and it could be placed in a soundproof building, cabin, etc.

-The unit includes a computer usb connection with a long cable to the place where the parameters can be displayed.

-In this control room are the gas and valve controls, etc.

"Example of a presentation screen"