5 Aircraft Used In The North American X-15 Hypersonic Program
Two of these aircraft are bombers, while the remaining three set the glorious records associated with the X-15.
Hosted on MSN23h
B-52 Stratofortress Was 'Built to Punch America's Enemies in the Face'
The B-52 Stratofortress, designed in 1948 and in service since 1952, is America’s longest-serving bomber, renowned for ...