Production. Airplane manufacture, general. Joe Cobb, former "Fat Boy" in the original "Our Gang" comedies, now helps build B-25 bombers at the Inglewood, California, plant of North American Aviation. This plant produces the battle-tested B-25 ("Billy Mitchell") bomber, used in General Doolittle's raid on Tokyo, and the P-51 ("Mustang") fighter plane, which was first brought into prominence by the British raid on Dieppe