Some 11.5 minutes into the flight — the 12th overall for the XB-1 — at an altitude of around 35,000 feet (10,668 meters), the test plane exceeded Mach 1, the speed of sound, marking the first ...

During the test flight, it reached an altitude of 35,000ft before accelerating to Mach 1.1 (844mph) - 10% faster than the speed of sound.

Boom Supersonic’s XB-1 aircraft broke the sound barrier for the first time ever on Tuesday, ushering in a new era of supersonic flight. The jet exceeded Mach 1 after taking off from the Mojave ...

Boom, the American company building what promises to be the world’s fastest airliner, broke the sound barrier for its first time with a test flight in Mojave, California. The company’s XB-1 ...

NOT GOOD!!!” The tragic collision of an American Airlines regional jet and a Black Hawk helicopter near DC’s Reagan National Airport is an early test for both Trump and two of his newly minted ...

Traffic controllers had requested American Airlines Flight 5342 to land on a shorter runway just minutes before the aircraft was due to land, to which the pilots agreed, adjusting their approach.

Pagination 173 p. : ill., maps, ports., facsim. ; 29 cm.