Mach 1

The Little-Known Soviet Pilot Who Broke Mach 1

Among other things, the Cold War was replete with examples of the United States of America and the Union of Soviet Socialist Republics attempting to one-up each other in the arena of...

Bell X-1: The First Plane to Break the Sound Barrier and Hit Mach 1

Meet the X-1: When it comes to testing airplanes the “X” designation means experimental. The first X aircraft was built in 1945 by Bell in partnership with the U.S. Army...