What is a turbo prop helicopter?
Turboprop aircraft have one or more gas-turbine engines connected to a gearbox that turns the propeller(s), to move the aircraft on the ground and through the air. When it comes to safety, jets and turboprops are essentially equivalent. Both types of aircraft are powered by turbine engines, making them virtually identical in terms of safety. In general, turbine engines are mechanically simple, light, reliable, and easy to operate.
Why is it called a turboprop?
A turboprop is an engine that burns fuel to make hot combustion gas, which then flows through a turbine to power a propeller. It also uses part of that energy to power a compressor which forces air into the combustion chamber. A turbojet is like a turboprop without the prop. Turbojets have poor efficiency at low vehicle speeds, which limits their usefulness in vehicles other than aircraft. Turbojet engines have been used in isolated cases to power vehicles other than aircraft, typically for attempts on land speed records.