U.S. startup Astro Mechanica plans to take its hybrid-electric supersonic engine into high-altitude and high-speed ground testing this year as it moves toward flying the unique powerplant in 2027 in a ...

Pilots follow a specific procedure to achieve successful engine starts. In this video, key steps are outlined, including the First Officer announcing the engine start, selecting the Engine Start ...

GE and Lockheed ground tested a new air-breathing hypersonic jet engine capable of powering missiles to speeds well in excess ...