The Douglas Aircraft Company was an early American aerospace and defense firm that was based in Southern California. The company was founded in 1921 by Donald Wills Douglas Sr. In its early days, one ...

The Douglas DC-8 wing had a sweep back of 30 degrees, but Douglas promised speeds of Mach 0.85, anyway. The DC-8 employed an airfoil design that caused a shock wave at its leading edge, but configured ...