EARLY TESTS OF THE LE-7A IMPROVED-FIRST
EARLY TESTS OF THE LE-7A IMPROVED-FIRST-stage engine for Japan's H-2A commercial launch vehicle resulted in a 14-mm.-long hairline crack in a turbopump cooling pipe. The crack occurred after a 50-sec. test firing at Japan's Tanegashima Space Center, appearing in a 9.5-mm.-dia. pipe made to carry...
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