This simulates a small jet engine. you can emergency stop, tell when fuel is ignited, and also shows a front view of the turbine.
Press start engine. set the start up speed to the desired speed. then after a while you will notice the fuel will ingnite. (P.S.: that sound at the start is a compresser and a APU compressing air. it will go away at 1000 RPM.) max rpm: 8000