Marboré Jet Engine
In a jet engine, the exhaust gases are still expanding after the turbine (the turbine is set to produce the same amount of power that the compressor consumes), and the final expansion is allowed to take place in the jet nozzle providing thrust (in this case, about 3130 N). If the jet nozzle is replaced by a free power turbine, then power of about 800 kW can be achieved (using an aeroderivate gas turbine as an auxiliary power unit).
The Marboré jet engine was used in the Air Force Fouga Magister training aircraft until 1988. The University received a donation of four engines, one of which is used as a model, a second one in the laboratory test station, and the other two for spare parts.