Back محرك عمود دوران توربيني Arabic Turboexe AST Turboşaft Azerbaijani Turboeix Catalan Turbohřídelový motor Czech Wellenturbine German Turboeje Spanish توربوشفت Persian Turbiinimoottori Finnish Turbomoteur French
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| Aircraft propulsion |
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Shaft engines: driving propellers, rotors, ducted fans or propfans |
| Reaction engines |
A turboshaft engine is a form of gas turbine that is optimized to produce shaft horsepower rather than jet thrust. In concept, turboshaft engines are very similar to turbojets, with additional turbine expansion to extract heat energy from the exhaust and convert it into output shaft power. They are even more similar to turboprops, with only minor differences, and a single engine is often sold in both forms.
Turboshaft engines are commonly used in applications that require a sustained high power output, high reliability, small size, and light weight. These include helicopters, auxiliary power units, boats and ships, tanks, hovercraft, and stationary equipment.