WIKIARCHIVES.SPACE

Flames shot from the nozzles of the Space Shuttle's three engines during the successful 20-second static firing, which capped a formal rehearsal for the maiden flight of Columbia, scheduled for early April. The milestone event took place at 8:45 a.m. on Feb. 20, 1981. The three main engines reached 100 percent power - over 1 million pounds of thrust - during the test. Holddown bolts secured the vehicle to its mobile launcher platform.