The J79 Turbojet Engine is a military jet engine developed by General Electric in the 1950s. It is known for its high thrust and reliability, making it suitable for various aircraft, including the McDonnell Douglas F-4 Phantom II. The engine operates on the principle of sucking in air, compressing it, mixing it with fuel, and igniting the mixture to produce thrust. This turbojet engine features an axial-flow design, which allows for efficient airflow and performance at high speeds. With a thrust output of around 15,000 pounds, the J79 has been a key component in many military operations and has influenced the design of subsequent jet engines.