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The original was posted on /r/technology by /u/mepper on 2026-05-17 14:51:41+00:00.
Japan team has 1st successful engine test for Mach 5 aircraft, eyeing 2-hr trips to US
Submitted 5 weeks ago by bot@lemmit.online [bot] to technology@lemmit.online
https://mainichi.jp/english/articles/20260511/p2a/00m/0sc/015000c