TE
科技回声
首页24小时热榜最新最佳问答展示工作
GitHubTwitter
首页

科技回声

基于 Next.js 构建的科技新闻平台,提供全球科技新闻和讨论内容。

GitHubTwitter

首页

首页最新最佳问答展示工作

资源链接

HackerNews API原版 HackerNewsNext.js

© 2025 科技回声. 版权所有。

SpaceX successfully tests parachute for bringing astronauts back [video]

221 点作者 salmonet超过 9 年前

10 条评论

ChuckMcM超过 9 年前
The more interesting test for me was the hover tests (<a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=07Pm8ZY0XJI" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=07Pm8ZY0XJI</a>) I keep doing back of the envelope calculations to see if a Dragon2 has enough fuel capacity to land and return from the lunar surface. Granted there is limited ability to leave and re-enter the capsule but it would make for an interesting capability.<p>If I recall correctly the &quot;land on land&quot; scenario for dragon has it using parachutes most of the way down, then doing a drop and land at the end.
评论 #10989892 未加载
评论 #10990256 未加载
评论 #10989925 未加载
douche超过 9 年前
I will never be able to look at a video of a space flight again without thinking of how it would be achieved in Kerbal Space program.<p>Four Mk2R Radial Mount Parachutes, I think...
评论 #10989867 未加载
vecter超过 9 年前
I&#x27;d appreciate it if someone could explain to me how dangerous it is to use multiple parachutes instead of one. It sounds like it provides more reliability in case the one parachute fails, but it also seems there would be a risk of the parachutes becoming entangled. I personally have no understanding of the engineering or a sense of those risks.
krschultz超过 9 年前
This was pretty low risk considering that they have been landing the cargo Dragon capsule under parachute for a few years now. The crew Dragon capsule probably has slightly different weight &amp; balance characteristics but the system hasn&#x27;t changed that much.
评论 #10989712 未加载
sopooneo超过 9 年前
Why do the parachutes chords angle to the side in the air? It seems like after a little while in constant wind, it would end up hanging vertically, while falling at an angle.
评论 #10993396 未加载
评论 #10993351 未加载
lmm超过 9 年前
Needs [video] tag.
Tharkun超过 9 年前
Youtube link: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=4PG438XSarg" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=4PG438XSarg</a>
novlean11超过 9 年前
SpaceX with their reusable stuff is definitely changing the whole space industry. We might have an option to fly out there in our life time without being a millionaires.
评论 #10990808 未加载
rglover超过 9 年前
Slow, steady progress is a beautiful thing.
评论 #10994203 未加载
backtoyoujim超过 9 年前
who owns washington post and spacex?
评论 #10993876 未加载