The exhaust gases rush past a set of turbine blades, spinning them like a windmill. Since the turbine gains energy, the gases must lose the same amount of energy—and they do so by cooling down slightly and losing pressure. The turbine blades are connected to a long axle (represented by ...
As the turbine spins, it transfers energy to the compressor blades in front, completing the cycle. In airplanes with turboprops or helicopters with turboshaft engines, the turbines also transfer power to a propeller or helicopter rotor via a series of gears. Turbojets pack a lot of power but...