AI-9 (АИ-9) Gas turbine APU First Full Start up to its idle speed of 38000 rpm

Development & test of an АИ-9 Control system (Built using Arduino Uno) This is the first attempt to let the engine run up to idle speed (38000 RPM). It was a bit scary at the speed regulation is all controlled by pressure valves that have not been adjusted since acquiring the engine. There is still more work as it shuts down early due to a centrifuge fault. Once fixed it will run for longer.