At present, SpaceX has replaced the "potentially problematic" Raptor engine of the SN10 interstellar spacecraft in the shortest time. On February 24, SpaceX CEO Elon Musk tweeted that "the three of the SN10 interstellar spacecraft There may be a problem with one of the Raptor engines, so we need to replace it." 

Engine replacement is a routine procedure of the SpaceX interstellar spacecraft team. The company continues to make design changes and upgrades to the interstellar spacecraft. Among the five interstellar spacecraft prototypes, at least one engine needs to be replaced before being approved for launch.

On February 24, Beijing time, within 18 hours of static ignition of the "potentially problematic" engine of the SN10 interstellar spacecraft, SpaceX retrieved a spare Raptor engine from a nearby warehouse. Within about 12 hours, the engine that was believed to be potentially faulty was destroyed. Remove and then install the spare engine in this location. About another 12 hours later, SpaceX cleared the launch pad for the SN10 interstellar spacecraft and tried to perform a second static ignition, hoping that the rocket would have the launch conditions. 

At 7:00 on February 24th, Beijing time, the SN10 interstellar spacecraft conducted a static ignition test. The researchers concluded that one of the three engines of the SN10 Raptor had a "potential failure", and then chose to replace the engine for installation and start the SN10 for the second time. Static ignition test.

On February 26, Beijing time, the SN10 interstellar spacecraft completed a long-duration static ignition test of 3 engines within 48 hours. Unlike the static ignition test completed on February 24, the spacecraft was There was no immediate sign of suspension, and a large amount of decompression and exhaust began after the test was closed on February 24.

The static ignition test is a common pre-flight inspection method of SpaceX, which is to prepare for the flight test of the SN10 interstellar spacecraft prototype. At present, SpaceX has not officially released the specific launch time of SN10. SN10 will be launched on March 1 as early as March 1 before the static ignition data check shows no danger signs. (Camera) 

Source: NetEase Technology Report, translated by Google Translate