This article has been written by NASA

STS-1

The first launch of the Space Shuttle occurred on April 12, l98l, when the orbiter Columbia, with two crew members, astronauts John W. Young, commander, and Robert L. Crippen, pilot, lifted off from Pad A, Launch Complex 39, at the Kennedy Space Center -- the first of 24 launches from Pad A. It was exactly 7 a.m. EST. A launch attempt, 2 days before, was scrubbed because of a timing problem in one of the Columbia's general purpose computers.

Not only was this the first launch of the Space Shuttle, but it marked the first time that solid fuel rockets were used for a U.S. manned launch. The STS-l orbiter, Columbia, also holds the record for the amount of time spent in the Orbiter Processing Facility (OPF) before launch -- 610 days, time needed for replacement of many of its heat shield tiles.

Primary mission objectives of the maiden flight were to check out the overall Shuttle system, accomplish a safe ascent into orbit and to return to Earth for a safe landing. All of these objectives were met successfully and the Shuttle's worthiness as a space vehicle was verified.

The only payload carried on the mission was a Development Flight Instrumentation (DFI) package which contained sensors and measuring devices to record orbiter performance and the stresses that occurred during launch, ascent, orbital flight, descent and landing.

The 36-orbit, 933,757-mile-long flight lasted 2 days, 6 hours, 20 minutes and 32 seconds. Landing took place on Runway 23 at Edwards AFB, Calif., on April 14, 1981, at 10:21 a.m. PST. Post-flight inspection of the Columbia revealed that an overpressure wave which occurred when the SRB ignited resulted in the loss of 16 heat shield tiles and damage to 148 others. In all other respects, however, Columbia came through the flight with flying colors, and it was to fly the next four Shuttle missions.

Columbia was returned to Kennedy Space Center from California on April 28 atop its 747 carrier aircraft.

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