A turbofan engine, on the other hand, is designed to move huge amounts of air to propel an aircraft forward. At lower subsonic speeds, it does this quite well. Faster than that, aerodynamic drag ...

NASA’s X-59, a quiet supersonic jet, completed its first subsonic flight on October 30, 2025, marking a significant stride in the agency’s pursuit of quieter supersonic travel over land. The test ...

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 ...

(Reuters) - Reviving supersonic passenger flights will harm the environment as the jets will not likely be able to comply with existing fuel efficiency, pollution and noise standards for subsonic ...

SAN DIEGO, April 04, 2023 (GLOBE NEWSWIRE) -- Kratos Defense & Security Solutions, Inc. (NASDAQ: KTOS), a Technology Company in the Defense, National Security and Global Markets and an ...