The General Electric J33 is a turbojet engine developed in the late 1940s. It was designed for use in military aircraft, particularly the McDonnell F2H Banshee. The J33 was notable for its compact design and relatively high thrust output, making it suitable for various jet applications. This engine features a single-spool design and operates on the principle of compressing air before igniting fuel to produce thrust. The J33 was one of the early engines that contributed to the advancement of jet propulsion technology, paving the way for more powerful and efficient engines in the following decades.