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First prototype pictured during the initial hovering trails period,
when it was not wearing the D-9517 registration yet; that was
applied when the aircraft was crossing the airfield boundaries in
horizontal flight. First free hover was made by the american test
pilot George Bright on April 10; first horizontal flight on August
31 and first transition on September 20, 1963. The first of several
supersonic flight was made on July 29, 1964; the aircraft crashed
on September 4, 1964. |
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