Just for accuracy sake, and by no means critisizing, you cannot control the fuel/air mixture, making it lean or rich, on a gas turbine engine. The pilot can't control it and neither can the engine or the airacraft. The starter starts turning the compressor turbine (gas producer), which draws in air to the combustion chamber, initially. Once sufficient air reaches the combustion chamber fuel is introduced to the chamber and the mixture of fuel and air is ignited by igniters. Once the fire starts in the combustion chamber and the rpm reaches a set point, the starter is released and the igniters stop. The combustion is kept going by constant fuel being introduced to the fire. To increase power, the throttle is used it introduce more fuel to the chamber. This makes the power turbine turn faster, which in turn makes the opposing gas producer turbine go faster and pull in more air. There is simply no way to control the "mixture" of fuel and air, or for the engine to be "lean."G.A. Heath wrote: ↑Sun Aug 12, 2018 2:05 pm I was wrong when I typed that the aircraft used an internal combustion engine, but going lean can still do damage (it's just almost impossible for it to occur to a significant degree).
I think it's most interesting watching the aerobatic type maneuvers this guy did with no flying experience.
