The Lockheed CL-1200 Lancer was a late 1960s company-funded proposal for a fighter aircraft based on the Lockheed F-104 Starfighter. The CL-1200 was conceived and marketed mainly for and to non-US military services, as an export product. As such it would have competed with combat-proven designs like the Dassault Mirage III, McDonnell Douglas F-4 Phantom II, Mikoyan-Gurevich MiG-21, and Northrop F-5E Tiger II. The CL-1200 competed unsuccessfully against proposed fourth generation designs, under the US government's Lightweight Fighter program, which would eventually result in the General Dynamics F-16 and Northrop F-17 Cobra (precursor of the McDonnell Douglas F/A-18). Lockheed sought to capitalize on its F-104 production experience, and commonality of parts and systems. It could minimize expenses by reusing tooling, jigs and existing facilities. Lockheed was also experienced in consortium production and further hoped to continue this arrangement with the CL-1200. It was projected that CL-1200 deliveries could begin in 1972. Borrowing heavily from the F-104 design the new type featured a new high-mounted, increased span wing and low-mounted, enlarged tailplanes. Both features were to improve flight handling characteristics and short-field performance. The CL1200-1 would use an uprated version of the F-104 engine, the General Electric J79 with a later variant known as the CL1200-2 to be powered by a Pratt and Whitney TF-30 turbofan. The CL-1200-1 was entered in the International Fighter Aircraft competition. Since the Northrop F-5 was named the winner in November 1970, the primary market for the Lancer was lost, and the project was terminated with no aircraft completed. The X-27 was an experimental designation assigned by the USAF to a proposed high-performance research aircraft derived from the CL-1200 Lancer project. The X-27 was to have tested advanced technology high-performance engines and equipment. Again, the X-27 project did not proceed beyond the mock-up stage. The CL-1200-2 (sometimes referred to as the CL-1600) was a proposed development of the X-27 for entry into the Lightweight Fighter Competition in 1972. The CL-1200-2 was not proceeded with when General Dynamics and Northrop designs were given contracts for the YF-16 and YF-17. The design was similar to the X-27 but had round intakes with shock cones and a different fin. A further variant proposed for the United States Navy was designated the CL-1400 or CL-1400N. It was based on the forward fuselage, intake and wing of the CL-1200-2 with the rear fuselage of the X-27. Design Intended as a successor