Rotorcraft engines are a critical component of helicopters and other rotary-wing aircraft, providing the power necessary for vertical takeoff, hovering, and maneuverability. Rotorcraft engines are essential for the operation of helicopters and other rotary-wing aircraft, enabling them to achieve vertical flight, hover, and perform a wide range of maneuvers. These engines play a vital role in providing the thrust required for lift and control. Rotorcraft engines are essential for the operational success of rotary-wing aircraft, enabling vertical flight and a wide range of applications. Addressing challenges related to efficiency, emissions, and noise reduction will be pivotal in ensuring the continued effectiveness of rotorcraft engines.