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On March 13th, news emerged that the previous day, March 12th, witnessed a significant achievement: the 110-ton pintle-injected liquid oxygen and kerosene engine, Liqing II, developed by China Space Century Technology, had successfully completed a prolonged-duration test. This milestone event stands as a pivotal moment in the development journey of this reusable rocket engine, thoroughly validating its reliability for extended operational periods.
Throughout the testing phase, the Liqing II engine underwent multiple ignitions. Notably, its longest single operational stretch spanned 200 seconds, with a cumulative total of 420 seconds, effectively covering the anticipated flight duration of the rocket's first stage. As of now, the aggregate test duration for this engine has surpassed the 1000-second mark.
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