据说可以降低对防热层的要求，应该是可以减重吧
当年阿波罗返回舱都是直接硬抗的
【 在 huhu 的大作中提到: 】
: 打水漂再入有啥优势？
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FROM 58.101.144.*

这么说话就很不负责任了
正好这个问题我之前看过书
https://www.amazon.com/Apollo-13-Jim-Lovell/dp/0618619585

Apollo 13 by Jim Lovell, Jeffrey Kluger


Quote:
In order to reenter Earth's atmosphere safely, Apollo 13 had to approach at an inclination no shallower than 5.3 degrees, and no steeper than 7.7 degrees. Come in at 5.2 degrees or below, and the blunt-ended command module would skip off the top of the atmosphere and boing straight back into space, entering a permanent orbit around the sun. Come in at a 7.8 degree or above, and the spacecraft would be able to reenter all right, but at so steep an angle and with such a high g force that the crew would probably be crushed well before they ever hit the water.




【 在 xiaoju 的大作中提到: 】
: 这个是老知识点了，你仔细查吧
:
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FROM 58.101.144.*