Also ordered were 91 examples of the P-82F (Model NA-149), a night-fighter version with an APS-4 or APG-28 radar set installed in a large bulbous pod mounted underneath the central wing in such a way that it protruded beyond the forward edge of the propeller spinners. The starboard cockpit was modified to carry a radar operator's position. The armament consisted of six 0.50-inch machine guns mounted in the center wing just above the radar set. Serials were 46-405/495.
The first P-82F flew on March 11, 1948. Surprisingly, the additional weight and aerodynamic drag caused by the large radar pod had only a slight degrading effect on performance. Maximum speed of the P-82F dropped only five mph to 460 mph at 21,000 feet. Normal range was 2200 miles, with maximum range being 2400 miles. Service ceiling was 38,500 feet, and the initial climb rate was 3690 feet per minute. Weights were 16,309 pounds empty and 26,208 pounds maximum. Dimensions were wingspan 51 feet 3 inches, length 42 feet 2 inches, height 13 feet 10 inches, and wing area of 408 square feet.
Serials of P-82F:
46-405/495 North American P-82F Twin Mustang c/n 149-38291/38381 Redesignated F-82F in 1948.