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A-10/OA-10 Thunderbolt
II
On 6 March 1967 the
US Air Force released a request for information
to 21 companies. Their objective was to create
a design study for a low cost attack aircraft
designated A-X, or "Attack Experimental".
In May 1970, the USAF issued a modified, yet
much more detailed request for proposals (RFP).
Six companies submitted contestants to the
USAF, with Northrop and Fairchild-Republic
selected to build prototypes: the YA-9A and
YA-10A, respectively.
First flight of the
A-10 was in May 1972. After trials and a flyoff
against the A-9, the Air Force selected Fairchild-Republic's
A-10 as the winner on 10 January 1973. The
first production A-10 flew in October 1975,
and deliveries to the Air Force commenced
in March 1976. The first squadron to use the
A-10 went operational in October 1977. 715
aircraft were produced, ending in 1984.
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