The korean conflict was less than six months old on the morning of November 30,1950, when a U.S. Air Force B-29 Superfortress, attacking an air base in North Korea, was lightly damaged by a fighter that overtook the bomber too fast for the attacker to be identified, much less for the Superfort's gunner to fix it in the sights of his gun's tracking system. Straight-wing Lockheed F-80 jets escorting the bomber made a token pursuit, but the accelerating fighter rapidly shrank to a dot, then disappeared.
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