Warplanes of the USA: Douglas X-3 Stiletto

Douglas X-3 Stiletto

‍

(NACA Photo)

The Douglas X-3 Stiletto is a 1950s United States experimental jet aircraft with a slender fuselage and a long tapered nose, manufactured by the Douglas Aircraft Company. Its primary mission was to investigate the design features of an aircraft suitable for sustained supersonic speeds, which included the first use of titanium in major airframe components. Douglas designed the X-3 with the goal of a maximum speed of approximately 2,000 mph (3,200 km/h), but it was seriously underpowered for this purpose and could not even exceed Mach 1 in level flight. Although the research aircraft was a disappointment, Lockheed designers used data from the X-3 tests for the Lockheed F-104 Starfighter which used a similar trapezoidal wing design in a successful Mach 2 fighter. (Wikipedia)

(NACA Photo)

Douglas X-3 Stiletto (Serial No. 892).

(NACA Photo)

A group picture of Douglas Airplanes, taken for a photographic promotion in 1954, at what is now known as the Dryden Flight Research Center at Edwards Air Force Base, California. The photo includes the X-3 (in front-Air Force serial number 49-2892) then clockwise D-558-I, XF4D-1 (a Navy jet fighter prototype not flown by the NACA), and the first D-558-II (NACA tail number 143, Navy serial number 37973), which was flown only once by the NACA.

(NACA Photos)

Douglas X-3 Stiletto.

(NACA Photo)

U.S. experimental aircraft (X-Planes). In the center, the Douglas X-3 Stiletto; around it, clockwise from bottom left: Bell X-1A, Douglas D-558-1 Skystreak, Convair XF-92A, Bell X-5, Douglas D-558-2 Skyrocket, Northrop X-4 Bantam.