Science: Chunky but Sweet

At long last, this week the Air Force released pictures and a brief description of its F-100 "air superiority fighter," which has been the subject of well-informed gossip for more than a year. Named the Super-Sabre by its builder, North American Aviation Inc., it is described as "the U.S. Air Force's first operational jet fighter to exceed the speed of sound in level flight." This cautious wording is intended to head off protests from North American's competitors, especially Douglas Aircraft Co., whose F4D (built for the Navy, not the Air Force) is claimed to be supersonic too.

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