the first x box came out on june 19, 1998.
the first x box came out on june 19, 1998.
when did the first x box come out?
june 19, 1998
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the first x-4 (serial number 46-676) was delivered to muroc air force base, california, in november 1948. it underwent taxi tests and made its first flight on december 15, 1948, with northrop test pilot charles tucker at the controls. winter rains flooded rogers dry lake soon after, preventing additional x-4 flights until april 1949. the first x-4 proved mechanically unreliable, and made only ten flights. walter c. williams, the head of the naca muroc flight test unit (now dryden flight research center) called the aircraft a "lemon". the second x-4 (serial number 46-677) was delivered during the halt of flights, and soon proved far more reliable. it made a total of 20 contractor flights. despite this, the contractor flight program dragged on until february 1950, before both aircraft were turned over to the air force and the naca. the first x-4 never flew again, used as spare parts for the second aircraft.
northrop x-4 bantam