to the F-104, the Lancer was another product from Lockheed's Skunk Works. Clarence L "Kelly" Johnson headed the department during this period, while Skunk Works designers carried out all aerodynamic studies and wind tunnel testing on the type. Airframe The CL-1200 would use the basic F-104 fuselage structure, increased in length to provide 46% extra internal fuel capacity. The fuselage extension consisted of a plug between the standard F-104 front and center fuselage sections. Unlike the F-104, the rear fuselage section was to be constructed using titanium alloy for the frames, longerons and skinning around the jet exhaust. The major revision of the design was a shoulder-mounted wing of 53% larger area which was also moved further aft. The new wing had a span of and still featured leading and trailing edge flaps but gained new leading edge extensions, while the 10° anhedral of the Starfighter was retained. The flap system was designed to be either manual or automatic in operation. The system configured them as required for load factor, airspeed and altitude. The new inner wing panels featured an additional trailing edge flap which doubled the area in comparison to the F-104. This would have improved short-field performance and reduced landing speed. The boundary layer control system of the F-104 was deemed unnecessary due to the increased flap area, and was omitted. The outer wing panels were virtually identical to those of the F-104. The tailplane was increased in area, split into two separate surfaces, and moved from atop the vertical fin to the lower rear fuselage to avoid the downwash effects from the high-set wing at high angles of attack which could have resulted in a deep stall condition. The repositioning of the tailplane was also a measure to eliminate the Starfighter's known pitch-up problems. For commonality the landing gear, hydraulic and electrical systems remained essentially identical to the F-104. The strengthened windshield from the F-104S was to be used to withstand the aerodynamic heating of flight at higher Mach numbers. A two-seat trainer version was planned, as was a reconnaissance and all-weather interceptor version. This would have been achieved by using the existing forward fuselage sections and avionics from the TF-104G, RF-104G and F-104S. Powerplant The initial variant of the Lancer was to be the CL-1200-1, powered by a single J79-GE-19 turbojet which was an uprated version of the engine used in the F-104. The second, more