Lockheed Martin has mastered the craft of shaping quieter sonic booms. The defense giant's engineering advances prompted it to release concept designs for a new supersonic airliner. (Image: Lockheed Martin)
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Lockheed Martin has mastered the craft of shaping quieter sonic booms. The defense giant's engineering advances prompted it to release concept designs for a new supersonic airliner. (Image: Lockheed Martin)
