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List of experimental aircraft

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This is an old revision of this page, as edited by Oscarg (talk | contribs) at 14:22, 31 January 2007 (XF Series). The present address (URL) is a permanent link to this revision, which may differ significantly from the current revision.

This is a list of experimental aircraft. Most aircraft are marked as experimental when they are first designed, so this list will focus on notable vehicles that never went into production and experimental variations of vehicles that were produced.

For US designs this list will focus primarily on those aircraft that carried the "X" series designation or carried the "X" series designation as a prefix to a prototype, preproduction, or test aircraft.

US "X" designations

Purely-experimental designs

XA series

prototype or experimental attack aircraft

XB series

Prototype or experimental bomber aircraft

XC Series

XF Series

This series covers post-World War II fighter development when the newly independent USAF changed the "P" pursuit designation to "F" for fighter.

XP Series

This series covers fighter development up to the end of World War II. In 1947 the newly independent USAF changed the "P" pursuit designation to "F" for fighter.

US non X designations

United Kingdom

Includes research aircraft, private company projects and prototypes produced in competition for Air Ministry contracts.

Others