The Northrop P-61 Black Widow had a gun mounted that was designed by whom?
Northrop P-61 Black Widow The Northrop P-61 Black Widow, named for the American spider, was the first operational U.S. warplane designed as a night fighter, and the first aircraft designed to use radar. The P-61 had a crew of three: pilot, gunner, and radar operator. It was armed with four 20 mm (.79 in) Hispano M2 forward-firing cannons mounted in the lower fuselage, and four .50 in (12.7 mm) M2 Browning machine guns mounted in a remote-controlled dorsal gun turret.
SU-122-44 The SU-122-44 was a Soviet self-propelled gun (SPG) prototype. The classification "44" stands for the T-44 tank chassis, which this SPG utilized. It was designed in early 1944 with a 122 mm D-25-44S gun, with its fighting compartment situated at the front of the hull. The front had a sloped 90 mm armor plate, with an inclination of 27 degrees. The side armor plating was 75 mm thick, and the rear was 45 mm thick. The design was found to be too heavy and too large for its intended use. Its competitor, the SU-100-M-2, proved a superior design, and on 7 March 1945 all work on the SU-122-44 was terminated.