The JSF (Joint Strike Fighter) advanced military gas turbine engine is a development engine for use in future military fighter jets.  EDF designed much of the test stand mount system for this engine.  The JSF engine is capable of vectoring thrust through the full range from vertical to horizontal.

The large structure on the ground below the engine is the Jet Plume Survey System designed by EDF. The system is used to survey the “shape” of the JSF engine vertical thrust plume to provide temperature and pressure profile data.  The main structure is mobile and can be positioned as needed.  In addition, the sensing probes are traversed through the exhaust plume during data collection.  This project had unique design challenges due to the system’s exposure to the extreme environment of high exhaust flow combined with temperatures up to 2000 deg F.  The air-cooled sensing probe rakes are made of materials that are relatively stable at high temperatures.  The combination of air-cooling and selective materials kept the thermal growth at acceptable levels.