A turboshaft engine is a type of gas turbine engine designed primarily to produce shaft power rather than thrust. It converts the energy from burning fuel into mechanical energy, which can be used to drive helicopters, ships, and industrial machinery. The engine works by compressing air, mixing it with fuel, and igniting the mixture, resulting in high-speed exhaust gases that spin a turbine. In helicopters, the turboshaft engine powers the rotor system, allowing for vertical takeoff and landing. This engine type is efficient and lightweight, making it ideal for applications where power-to-weight ratio is crucial.