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Lockheed Martin unveils plans for quiet supersonic passenger airplane
- makerofspoons 7y agoNo mention about how they intend to address environmental concerns: https://www.reuters.com/article/us-airplane-supersonic-environment/reviving-supersonic-passenger-flights-to-harm-environment-study-idUSKBN1K70K9 https://www.reuters.com/article/us-airplane-supersonic-envir...