SpaceX starship prototype sn9 explodes at 10 km landing

Use wechat scan QR code to share with friends and circle of friends_ blank" href=" https://news.163.com/news/search?keyword=SpaceX "> SpaceX < / a > launched its interstellar < a target =" from boccachka, Texas on Tuesday_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%88%B9 "> the prototype sn9 of the spaceship < / a > successfully delivered it to an altitude of about 10km as planned, but sn9 failed to put its posture right in time, resulting in the failure of the < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%9D%80%E9%99%86 "> explosion during landing < / a >. the launch of sn9 went well. With the altitude climb, the two engines shut down as planned. Finally, when it reached the maximum altitude about four and a half minutes after launch, the third engine was shut down and the Starship began to roll over. During the long dive back to earth, the nose and tail used fins to help adjust and maintain the direction. when sn9 approaches the ground, at least one engine restarts, and the rocket tries to adjust its posture according to the program, landing at the tail of the rocket hundreds of meters away from the launch pad. But it does not seem to have been able to turn vertically, and it is not clear whether a second engine is trying to ignite. In the end, the prototype crashed into the ground and exploded about six and a half minutes after taking off. ? Fortunately, although sn9 and SN8 failed to land, the operation was quite accurate, and another starship prototype Sn10 installed on a nearby launch pad was not significantly damaged by the explosion. SpaceX is likely to test the Sn10 in the next few days, and the exact time of the test flight is unclear. However, if the cause of sn9 landing failure is found and corrected in time, Sn10 may be ready for flight by the end of this month. this is the second landing explosion of SpaceX starship prototype during flight test. On December 9, 2020, SN8 conducted a test flight in Texas, USA. when it tried to land after six minutes of flight, it exploded due to impact and instantly turned into a big fireball. according to the current assumption, SpaceX's future spacecraft will be composed of two parts. The first part is a 230 foot (70 meter) high super heavy rocket booster, which can produce 16 million pounds (about 7257 tons) of thrust, more than twice as much as NASA's Saturn 5 lunar rocket. At present, the first level prototype has not been completed. the second stage, 160 feet (nearly 49 meters) high, also known as the starship, will use six methane oxygen Raptor engines and will be able to launch a 100 ton payload into low earth orbit. By contrast, SpaceX's Falcon heavy rocket can put about 30 tons of payload into orbit. Elon Musk, founder and chief executive of SpaceX, said the final starship would be powered by six Raptor engines and the super heavy rocket would have about 30 engines. There are at least three versions of SpaceX: the first one is used to deliver heavy payloads to earth orbit, moon or Mars, the second one is used to carry propellant to complete orbital refueling operations, and the third one can carry up to 100 passengers at a time. sn9 was originally scheduled to launch on January 28, but it was forced to delay at the last moment because it was not approved by FAA. Musk, President of SpaceX, has no choice but to reply that according to this rule, human beings will never get to Mars. according to Sky News on January 29, after the US Federal Aviation Administration (FAA) delayed the launch of the "star ship", musk tweeted that "unlike the orderly aviation management department, there are fundamental defects in the supervision structure of FAA's space Department. Their rules mean that if we use only a few government-owned launch sites, we can only launch a few times a year. Under these rules, man will never get to Mars. " At present, SpaceX's "starship" test has not been completely successful. At the end of May last year, the fuel of "star ship" Sn4 leaked and exploded; in April, another prototype spacecraft "star ship" sn3 exploded when pressurized with liquid nitrogen. Musk attributed these failures to human factors. However, in the high altitude suborbital flight test on December 9 last year, SN8 successfully lifted off, transported propellant, and completed the landing overturning operation through precise flap control, reaching the landing point. However, during the landing process, the low pressure of the tank led to high landing speed, "landing is very difficult but exciting." "We have all the data we need," Musk said to improve the starship, many prototypes need to be tested. In December last year, musk revealed on twitter that from SN1, every generation of prototypes will have a little bit of improvement, at least iterating to SN20, and finally realizing "starship" version 1.0. the "starship" system composed of 50 meter high "starship" and 70 meter high overweight rocket is the next generation of SpaceX fully reusable transportation system. After each launch, the overweight rocket can return to the ground. "Starship" itself has a strong thrust, can go to Mars and the moon on its own. The system will make it possible to transport satellites, crew and cargo to low earth orbit as well as to the moon and Mars. On February 1, musk said, "we will land on Mars in five and a half years. We can reduce the time required to go to Mars from six months to one month. " Related reading: SpaceX SN8 landed and exploded, but musk said it was successful. on December 10, 2020, SpaceX prototype SN8 successfully rose to an altitude of about 12 km from the ground in the test. But the fly in the ointment is that SN8 exploded when it tried to land due to impact. but Elon Musk, the company's chief executive, was satisfied with the overall flight test, saying: "a successful lift and transition, with precise flap control at the landing point!" It is reported that SN8 is the latest starship prototype of SpaceX. On Wednesday local time, it took off to an altitude of about 12 kilometers above the ground. Until the last moment of the test, everything went well. 飞船原型似乎完成了既定的几?
2023-03-22 10:04:27

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