Turboprops are a type of aircraft propulsion system that combines a jet engine with a propeller. They are designed to provide efficient power for smaller regional and commuter airplanes. The engine generates thrust by spinning the propeller, which allows the aircraft to take off and land on shorter runways compared to pure jet engines. These engines are known for their fuel efficiency, especially at lower altitudes and speeds. Turboprops are commonly used in aircraft like the Bombardier Q400 and ATR 72, making them popular choices for regional airlines and cargo transport due to their ability to operate in diverse environments.