Designed and built by Lockheed in 1943 and delivered just 143 days from the start of the design process, production models were flying, and two pre-production models did see very limited service in Italy just before the end of World War II. Designed with straight wings, the type saw extensive combat in Korea with the United States Air Force (USAF) as the F-80. America's first successful turbojet-powered combat aircraft, it helped usher in the "jet age" in the USAF, but was outclassed with the appearance of the swept-wing transonic MiG-15 and was quickly replaced in the air superiority role by the transonic F-86 Sabre. The F-94 Starfire, an all-weather interceptor on the same airframe, also saw Korean War service. The closely related T-33 Shooting Star trainer remained in service with the U.S. Air Force and Navy well into the 1980s, with the last NT-33 variant not retired until April 1997. Many T-33s still serve in a military role in foreign air arms or are in private hands, although the F-80 itself has long been retired from active service. The XP-80 had a conventional all-metal airframe, with a slim low wing and tricycle landing gear. Like most early jets designed during World War II—and before the Allies captured German research data that confirmed the speed advantages of swept-wings—the XP-80 had straight wings, similar to previous propeller-driven fighters. It was the first operational jet fighter to have its engine in the fuselage. A total of 1715 F-80's were produced. For more information on the development, design, operational history and many variants, click here. The specifications below are for the P80C/F80C variant.