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Pilot who became the first person to break the sound barrier when he exceeded 670 mph (Mach 1) in the Bell X-1 rocket research aircraft in 1947

Let's find possible answers to "Pilot who became the first person to break the sound barrier when he exceeded 670 mph (Mach 1) in the Bell X-1 rocket research aircraft in 1947" crossword clue. First of all, we will look for a few extra hints for this entry: Pilot who became the first person to break the sound barrier when he exceeded 670 mph (Mach 1) in the Bell X-1 rocket research aircraft in 1947. Finally, we will solve this crossword puzzle clue and get the correct word. We have 1 possible solution for this clue in our database.