マッハ3は無理だよね
With twin engines, projected Mach 3 performance,
and deeply integrated sensors and EW, GCAP aims for long-term adaptability into the 2040s and 2050s.
https://jump.5ch.net/?https://nationalsecurityjournal.org/gcap-tempest-6th-generation-fighter-has-message-for-the-u-s-air-force/