Japan team has 1st successful engine test for Mach 5 aircraft, eyeing 2-hr trips to US
SMRTR summary
Japan successfully tested a ramjet engine capable of powering a Mach 5 aircraft, potentially cutting Japan-to-US flight time to two hours, with practical deployment targeted for the 2040s.
SMRTR provides this summary for quick context. The original article belongs to Reddit.
Read the original article