Dragon Warbird’s continues its collection of experimental aircraft with a 1:144 scale model of the X-3 jet aircraft. Developed by Douglas Aircraft Company from 1949 onwards, the sleek X-3 Stiletto was designed for sustained supersonic speeds. The X-3 employed titanium and low-aspect ratio wings, and the first prototype was delivered in September 1952, with the first flight occurring the following month. Eventually a total of 51 X-3 flights took place. However, the pair of Westinghouse J34 turbojet engines was not powerful enough so it never actually reached Mach 1 in straight flight! The effort wasn’t wasted though, as data obtained from the X-3 was used to produce the F-104 Starfighter. The lone X-3 Stiletto is on display at the National Museum of the US Air Force at Wright-Patterson Air Force Base in Ohio.