The US plans to replace a 53-year-old supersonic flight ban with new noise-based rules ...

For decades, supersonic flights over the continental United States have been banned by regulators due to the sonic booms produced by the aircraft. However, it sounds like that could soon be changing.

Merlin also has defence ambitions and is developing autonomous systems for a Lockheed Martin C-130J. US start-up Merlin, which has for several years been flying conventional aircraft modified for ...