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Share with friends and circle of friends with wechat scan QR code < / P > < p > < p > space exploration technology company < a target = "_ blank" href=" https://news.163.com/news/search?keyword=SpaceX "> SpaceX < / a > interstellar < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%88%B9 "> the prototype sn9 of the spaceship < / a > has been standing on the launch pad, and is expected to be tested at a height of about 12.5km in the first two weeks of the new year. < / P > < p > < / P > < p > compared with the previous SN8, the goal of sn9 is to achieve "soft < a target ="_ blank" href=" https://news.163.com/news/search?keyword=%E7%9D%80%E9%99%86 "> landing < / a >". In the near future, sn9 will first carry out pressure test, and then carry out static ignition test on the three engines installed. If all goes well, sn9 may be at least 12.5km above the ground in the first or second week of January_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%A1%8C "> flight < / a > test. < / P > < p > last week, sn9 has been integrated on the launch pad. Compared with SN8, sn9 will carry out simplified pre launch test procedures. < / P > < p > the first test will involve filling the spacecraft with nitrogen, usually in two steps. First, the spacecraft will be filled with gaseous nitrogen, and then it will be loaded with ultra cold liquid nitrogen for low temperature test. < / P > < p > the test is expected to be conducted at the beginning of next week, and preparations for the test have started on Monday morning. < / P > < p > if all the tests go according to plan, sn9 will prepare for the static ignition test of three Raptor engines. Compared with SN8, SN8 has several static ignition tests before launch. < / P > < p > after all tests are completed, SpaceX will determine the launch date and inform the local aviation and maritime traffic management. It will also depend on weather conditions and readiness. < / P > < p > according to the best test procedure, sn9 may be launched in the first two weeks of January. On the basis of SN8 test, the chance of sn9 landing is greatly increased. < / P > < p > at present, the pace of production in SpaceX bocacchica factory is very fast. The prototype of the Starship Sn10 has occupied the position of sn9 in Gaowan, and now the nose cone has been assembled. Sn11 will also complete the stacking operation of the hull in Zhongwan of the factory. On Sunday, the stern of sn11 was moved into place and will dock with the rest in the next few days. In addition, sn12 is being manufactured. And super heavy < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%81%AB%E7%AE%AD "> many bodies of rocket prototype bn1 have been produced and are ready for stacking. < / P > < p > according to Elon Musk, the bn1 jump test will be conducted in "a few months". To meet frequent testing, the company is now delivering a large number of Raptor engines. At the test center in McGregor, Texas, the Raptor engine's factory speed is impressive. (Chenchen) < / P > < p > < / P > < p > < p > < p > use wechat scan QR code < / P > < p > to share with friends and circle of friends

2023-03-22 10:04:25