How can an M1A2 run on three fuels: gasoline, diesel, and jet fuel?
To answer the HOW question: Gas turbines work differently to piston engines. Their fuel and ignitions systems are designed differently. Firstly, since turbines BURN fuel as opposed to detonating it (in the case of a piston engine), then you can run any combustible liquid through a turbine, from paraffin oils to methanol. Turbines are largely governed by RPM and exhaust gas temperature. They work best at a fixed RPM, rather than accelerating and declerating. For a specific power setting on the throttle, the system will feed in enough fuel to keep the turbine at a specific RPM. As the load on the engine increases, the system will increase the fuel flow to keep rpm level. The main increase is in torque. However, when this happens, the exhaust gas temperature (EGT) will rise. The injection system of a turbine works on the DENSITY of the fuel to tell it how much to meter out at a certain power setting and RPM. So to summarise, and to explain HOW they use different fuels, all they do is adju