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The fiercest in history! The first ignition failure of American lunar rocket

via:驱动之家     time:2021/1/22 14:26:22     readed:64

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 in the series of tests. Unfortunately, it failed. The original plan was to ignite for 8.5 minutes,As a result, the engine automatically turned off after more than one minute.


Today, NASA announced the cause of the failure:The hydraulic system of rocket booster No.2 engine exceeded the preset parameter limits during the test, and the flight computer on the rocket core stage automatically ended the test according to the preset parameters.

NASA stressed that throughout the testing process,The temperature of SLS core engine is normal.

At present,NASA has not yet decided whether to conduct a second ignition test, and does not rule out sending the rocket directly to Kennedy Space Center for launch preparation.

NASA plans to return astronauts to the moon in 2024, including the first female astronaut, to build a permanent human habitat on and around the moon by 2030, but now it looks hopeless.


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.

The main body of this ignition 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.




Reprint please indicate the source: fast technology


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