Of the many futuristic military aircraft concepts created in the 1950s the North American Xb-70 still stands out as the most awe-inspiring.
A strategic bomber built to outrun any Soviet fighter jet, it could reach Mach 3 with a full nuclear payload--as fast as the legendary SR-71 Blackb.
With its huge, white partially-folding delta wing, its fuselage resembling a striking cobra, and its extraordinary performance, it was one of the foremost technological achievements of the 20th Century.
Of the many futuristic military aircraft concepts created in the 1950s the North American Xb-70 still stands out as the most awe-inspiring