MiG 15

In 1939, Anushavan Ivanovich ("Artyom") Mikoyan and Mikhail Iosifovich Gurevich teamed up to enter a design competition for a new Russian monoplane fighter. They won the competition and their outstanding MiG-1 design was put into production by the TsKB (Central Constructor Bureau) and the Mikoyan-Gurevich Design Bureau was formally recognized by the Soviet government in early 1941.
On November 30, 1950, at 0720 hours (local) during a raid on the North Korean Air Base at Namsi, an American B-29 Superfortress was hit by cannon fire from an aircraft that flashed by so fast, the gunners had no chance to return fire. Luckily the damage was confined to the outer port wing of the Superfortress and it immediately turned back toward its base. F-80C "Shooting Stars" which were escorting the B-29's tried to engage the interloper but were left in the dust as the stranger turned northeast toward the Yalu River. The Americans had not even had time to identify the nationality of the craft, and though a couple of F-80 pilots got a fleeting glance at the silhouette, intelligence officers at the debriefing were unable to identify the craft except to say it was jet powered. F-80 pilots estimated the craft was approximately 85 mph (136.8 kph) faster than the Shooting Star. Damage to the B-29 indicated the craft carried at least one 37mm cannon and probably another, smaller cannon. This was the debut of the "MiG-15" and USAF brass viewed the development with what was described as "organized panic", from Korea all the way to the Pentagon.