The AL-31F is a turbojet engine designed and manufactured by Klimov, a Russian aerospace company. It is primarily used in military aircraft, notably the Sukhoi Su-27 fighter jet. The engine is known for its high thrust-to-weight ratio and reliability, making it suitable for various combat scenarios. This engine features a modular design, allowing for easier maintenance and repair. It is capable of producing afterburner thrust, which enhances the aircraft's speed and maneuverability. The AL-31F has been widely exported and serves as a foundation for several other engine variants used in different aircraft models.