Turbo-prop engines are used in many modern
propeller driven
aircraft where
efficiency, increased
range and reduced
noise,
vibration and
harshness (
NVH) are required.
They comprise a gas turbine which is used to drive a conventional propeller by means of a power take off and a reduction gear box.
Additional power and efficiency is achieved by directing the latent thrust of the gas turbine engine rearwards, such that it augments the thrust provided by the propeller.