Boom Supersonic independently designed and built the XB-1, the first civil supersonic jet in America. The XB-1's first ...

The scaled-down prototype, nicknamed the "Baby Boom", broke the sound barrier for the first time during a test flight over the Mojave Desert in California in late January. The small jet, officially ...

An American civil aircraft broke the sound barrier for the first time in California's Mojave Desert Late last week ... break the sound barrier since the Concorde was retired from service in ...

As Concorde could only fly supersonic over water ... when its XB-1 prototype hit Mach 1.12 while flying over the Mojave Desert. The firm said it placed microphones on the ground along the flight ...

The XB-1 aircraft accelerated to Mach 1.05 at about 35,000 feet during a test flight Tuesday in the same Mojave Desert airspace ... has been on hiatus since the Concorde jet was grounded more ...