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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 > internal documents show that the company plans to launch interstellar < a target =" as early as July 1, 2021_ blank" href=" https://news.163.com/news/search?keyword=%E9%A3%9E%E8%88%B9 "> the first orbital launch attempt of the spacecraft is less than four months away. < / P > < p > of course, this is the internal goal set by SpaceX, and it is very likely that the launch will not be realized in July. To achieve the above goals, SpaceX needs to overcome many arduous challenges, including completing the super heavy < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%81%AB%E7%AE%AD "> initial test of rocket < / a > booster (which may include one or several test flights), verification of upgraded starship design (above sn15), completion of construction of orbital launch facilities, and delivery of about 24 Raptor engines that can operate in orbit. < / P > < p > in fact, it is quite difficult to complete any of the above major engineering feats, and it is normal to have several months' delay in completing all these tasks. In this case, it means that the starship is likely to enter orbit by the end of 2021, in line with the expectations repeatedly repeated by Elon Musk, CEO of SpaceX, and Gwynne shotwell, President of SpaceX, in the past few months. < / P > < p > even if SpaceX successfully enters orbit, SpaceX may continue to maintain the Starship development mode, just regard orbit test as another "sandbox" to test and improve the Starship prototype. Considering all the challenges that SpaceX has to solve to put a starship into orbit, the first attempt to launch a starship or a super heavy rocket into orbit is quite likely to end in failure. Among them, the super heavy rocket is likely to launch in the first hypersonic launch and < a target = "_ blank" href=" https://news.163.com/news/search?keyword=%E7%9D%80%E9%99%86 "> failed in landing < / a > attempt. < / P > < p > even if the Starship itself can reach the orbit intact, there are still numerous problems that may lead to its damage. For example, after completing 90 minutes of orbital flight, enter < a target = "at orbital speed_ blank" href=" https://news.163.com/news/search?keyword=%E5%A4%A7%E6%B0%94%E5%B1%82 "> the atmosphere < / a > can easily destroy starships. In addition, even if a starship may try to re-enter the atmosphere successfully in some way for the first time, the pressure of orbital space flight and re-entry may prevent the Raptor engine from playing a role in the so-called "power flip" and landing process. < / P > < p > that is to say, even if SpaceX focuses on the orbital flight of the starship, it is still a continuation of its ongoing test plan and iterative development process. Although the cost of spaceships that can fly in orbit may be much higher than that of their suborbital counterparts, the difference is not big. SpaceX will undoubtedly continue to challenge the limit and risk losing the prototype to find and repair errors and design defects as soon as possible. (small) < / P > < p >

2023-03-22 10:04:30