The Convair B58 Hustler was the world’s first operational Mach 2 bomber.  Designed to fly high and fast to quickly penetrate the soviet union and deliver its nuclear payload, The B58 served for nearly a decade from March of 1960 until January of 1970.  Everything about the B58 was designed for speed: its narrow fuselage with the three crew members sitting in tandem, a delta wing, and surprisingly the lack of a bomb bay.