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The X Planes
By Jay Miller


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This article appeared in the Second Quarter 2001 issue of Code One Magazine.

X-5
Mission: The X-5 was the first jet-propelled aircraft ever to fly with in-flight variable-swept-wing capability. It was designed to explore transonic speeds and to investigate the attributes of variable swept for low- and high-speed flight. It was equipped with a single Allison J35-A-17A turbojet engine.

Manufacturer: Bell Aircraft Corporation
Number Built: 2
Sponsor: USAF, NACA
Fastest Flight: 0.98 Mach (705 mph)
Highest Flight: 42,000 feet (approx.)
First Flight: 20 June 1951
Last Flight: 25 October 1955
Total Flights: 149
Length: 33 feet 4.5 inches
Wingspan: 20 feet 9 inches (swept);
33 feet 6 inches (unswept)
Height: 12 feet 0 inches
Gross Weight: 9,875 lb

View the X Planes

X-1 (First Generation) X-1 (Second Generation) X-1E
X-2 X-3 X-4 X-5 X-6 X-7 X-8 X-9 X-10 X-11 X-12 X-13 X-14
X-15 X-15A2 X-16 X-17 X-18 X-19 X-20 X-21 X-22 X-23 X-24A
X-24B X-25 X-26A X-26B X-27 X-28 X-29 X-30 X-31 X-32
X-33 X-34 X-35 X-36 X-37 X-38 X39
X-40 X-41 X-42 X-43 X-44 X-45

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