A helicopter engine is a crucial component that powers the rotorcraft, allowing it to lift off the ground and maneuver in the air. Most helicopter engines are either turbine engines or piston engines. Turbine engines are more common in larger helicopters due to their efficiency and power, while piston engines are typically found in smaller, lighter models. The engine generates thrust by converting fuel into mechanical energy, which turns the helicopter's rotors. This process enables the helicopter to hover, ascend, and descend. Proper maintenance of the engine is essential for safety and performance, ensuring reliable operation during flights.