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Earth first! First ignition failure of us lunar rocket: one engine scrapped

via:驱动之家     time:2021/1/17 20:38:17     readed:87

On January 17, local time, NASA conducted the first hot spot fire test of SLS (space launch system) rocket, which is also the last step of the series of tests. Unfortunately, the test failed, casting a shadow on the US manned lunar landing program.

The SLS rocket is far more powerful than Saturn 5 in the Apollo moon landing program. It is about 98 meters high and equipped with four rs-25 engines. It can hold 537000 gallons of liquid helium (about 2030 cubic meters) and 196000 gallons of liquid oxygen (about 740 cubic meters). It can fill 63 oil tankers. It can generate up to 2 million pounds (about 910 tons) of thrust and deliver 24 tons of load to the moon.

NASA plans to return to the moon in 2024 and land a female astronaut on the moon for the first time, using the SLS rocketAnd Orion, the Artemis mission.

地球第一!美国登月火箭首次点火失败:一台发动机报废

地球第一!美国登月火箭首次点火失败:一台发动机报废

地球第一!美国登月火箭首次点火失败:一台发动机报废

The ignition test was conducted at the Stannis space center near St. Louis Bay, Mississippi, USA. The main body of the test is the 212 foot (about 64.6 m) high SLS rocket core stage, which is full of liquid oxygen and liquid hydrogen fuel. It is planned to generate 1.6 million pounds (about 725 tons) of thrust. The four engines are planned to ignite continuously for 8.5 minutes, which is basically consistent with the official launch simulation.

As a result, the ignition only lasted more than one minute, and it was terminated ahead of time.

地球第一!美国登月火箭首次点火失败:一台发动机报废

地球第一!美国登月火箭首次点火失败:一台发动机报废

地球第一!美国登月火箭首次点火失败:一台发动机报废

地球第一!美国登月火箭首次点火失败:一台发动机报废

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