Summary and Key Points: The Douglas X-3 “Stiletto,” designed to research sustained supersonic speeds and achieve a maximum speed of 2,000 mph, ultimately fell short due to being severely underpowered.
-Despite its sleek and rocket-like design, the X-3 couldn't reach Mach-1 in level flight without diving.
-The program did, however, contribute valuable data on low-aspect-ratio wings, titanium construction, and inertia coupling, and it influenced the development of the Lockheed F-104...