Hypersonic start-up Hermeus has completed ground testing of its Quarterhorse Mk 1 vehicle and is preparing to launch a flight test campaign for the subsonic jet. The Atlanta-based firm on 17 December ...
Hypersonic developer Hermeus has completed the first flight with its Quarterhorse Mk 1 test vehicle. The US start-up announced the much anticipated milestone on 27 May, noting the inaugural sortie ...
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