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SpaceX nails triple booster landing after satellite delivery

513 pointsby support_ribbonsabout 6 years ago

16 comments

DennisPabout 6 years ago
This really looks good for launch costs long-term.<p>The Heavy costs $90 million per reusable launch with a 64,000 kg payload, or $1400 per kilogram.[1]<p>Current versions of the Falcon 9 and Heavy can fly ten times with virtually no refurbishment between flights.[2] The only part they throw away is the $7.5 million upper stage.[3] Their expendable cost is $150M and they haven&#x27;t really started reusing yet, so if they actually reuse each rocket ten times, they have a lot of room to lower prices; ten launches would be $($150M - $7.5M) + ($7.5M * 10) = $21.75M per launch, or $334&#x2F;kg for the rocket itself. Launch cost won&#x27;t be quite that low because they also have labor, fuel, and so on, but it looks like they can get well under $1000&#x2F;kg just with the Falcon Heavy.<p>The larger and fully-reusable BFR should do even better.<p>[1] <a href="https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Falcon_Heavy" rel="nofollow">https:&#x2F;&#x2F;en.wikipedia.org&#x2F;wiki&#x2F;Falcon_Heavy</a><p>[2] <a href="https:&#x2F;&#x2F;www.space.com&#x2F;spacex-falcon-heavy-triple-rocket-landing-success.html" rel="nofollow">https:&#x2F;&#x2F;www.space.com&#x2F;spacex-falcon-heavy-triple-rocket-land...</a><p>[3] <a href="https:&#x2F;&#x2F;www.nextbigfuture.com&#x2F;2019&#x2F;04&#x2F;spacex-recovered-6-million-fairings-so-falcon-heavy-will-be-92-reusable.html#more-155979" rel="nofollow">https:&#x2F;&#x2F;www.nextbigfuture.com&#x2F;2019&#x2F;04&#x2F;spacex-recovered-6-mil...</a>
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bbojanabout 6 years ago
Not only that, but apparently they recovered both fairings: <a href="https:&#x2F;&#x2F;www.google.com&#x2F;url?sa=t&amp;source=web&amp;rct=j&amp;url=https:&#x2F;&#x2F;www.teslarati.com&#x2F;spacex-falcon-heavy-fairing-recovery-starlink&#x2F;amp&#x2F;&amp;ved=2ahUKEwjojrSJwsrhAhVkiOAKHdmCDVYQyM8BMAB6BAgFEAQ&amp;usg=AOvVaw1M3yDSNH7xzYKQG9Hcdd1Z&amp;ampcf=1" rel="nofollow">https:&#x2F;&#x2F;www.google.com&#x2F;url?sa=t&amp;source=web&amp;rct=j&amp;url=https:&#x2F;...</a><p>So 5 out of 5...
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martythemaniakabout 6 years ago
There&#x27;s a great media thread on reddit where people post their own photos and videos: <a href="https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;spacex&#x2F;comments&#x2F;bbhz9a&#x2F;rspacex_arabsat6a_media_thread_videos_images_gifs&#x2F;" rel="nofollow">https:&#x2F;&#x2F;www.reddit.com&#x2F;r&#x2F;spacex&#x2F;comments&#x2F;bbhz9a&#x2F;rspacex_arab...</a><p>Here&#x27;s a great video of the entire flight and landing of the side boosters in one shot, made with custom tracking software: <a href="https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=cEZZkEXAD6Q" rel="nofollow">https:&#x2F;&#x2F;www.youtube.com&#x2F;watch?v=cEZZkEXAD6Q</a>
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mhandleyabout 6 years ago
Nice video capturing the sonic booms from the booster landings here: <a href="https:&#x2F;&#x2F;twitter.com&#x2F;jefffwilliams&#x2F;status&#x2F;1116486329284595717" rel="nofollow">https:&#x2F;&#x2F;twitter.com&#x2F;jefffwilliams&#x2F;status&#x2F;1116486329284595717</a>
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raehikabout 6 years ago
Big fan of making technical spacecraft manoeuvres sound like cool skateboard tricks.
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joeblauabout 6 years ago
Every single time I watch a successful SpaceX launch I get chills and also get so excited. Congrats to everyone who has worked on this.
goshxabout 6 years ago
I was at Kennedy Space Center&#x27;s Apollo&#x2F;Saturn V viewing site for this launch and it was amazing. If you ever have the opportunity to be there for a Falcon Heavy launch, do yourself a favor and go. It&#x27;s quite an experience and totally worth the money.
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hoorayimhelpingabout 6 years ago
Here&#x27;s the video cued up to the booster landings: <a href="https:&#x2F;&#x2F;youtu.be&#x2F;TXMGu2d8c8g?t=1643" rel="nofollow">https:&#x2F;&#x2F;youtu.be&#x2F;TXMGu2d8c8g?t=1643</a> with the main core landing a few minutes later.<p>If it&#x27;s not obvious, the main core landing was much harder this time around, because of how fast it was going due to the two boosters imparting a lot of extra speed on it before they separated. If you think about it, it&#x27;ll have somewhere between 1x and 3x the velocity of a normal Falcon 9 core
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narratorabout 6 years ago
Can we finally stop having sci-fi films in which the whole outcome of the movie is solely determined on some heroic manual flying of a spaceship while simultaneously using manually aimed weapons like it&#x27;s World War II?
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rjf72about 6 years ago
I find this, and SpaceX, so inspiring. It&#x27;s easy to feel that technology just moves itself forward. After all there are billions of people on Earth with people working on a countless array of different problems. And each day things seem to move forward, almost inexorably so. And so it&#x27;s easy to feel that the value of the individual is really relatively low.<p>Yet imagine a world where Elon did not exist and thus SpaceX did not. Much of what he&#x27;s done is stuff that we could have been working on decades ago. For some time we were. NASA as early as the 70s had already laid out plans for a Mars expedition including a tremendous space ship that would be assembled and fueled in orbit to take 5 man crew on a 600 day manned expedition to Mars, including landing of rovers similar to the moon.<p>Those plans got canned by Nixon, and space never really recovered. Not only did we not &quot;inexorably advance&quot; in space, we regressed. Today we&#x27;re struggling to do a manned flyby of the Moon - when we went to having barely put a man in orbit in 1962, to putting a man on the moon in 1969. The point of this is that technology does not advance by itself, let alone inexorably so. I think it&#x27;s extremely likely that had SpaceX not come to exist, it&#x27;s entirely possible that we would still be effectively where we were at near the turn of the century.<p>Progress of our species, in spite of there being billions of us, is still dependent upon the individual. And SpaceX&#x27;s plans have very much followed the old quote of Gandhi, &quot;First they ignore you, then they laugh at you, then they fight you, then you win.&quot; But of course we&#x27;ve not yet won. As remarkable as this achievement is, it&#x27;s but the starting line for where we need to be. And that line will not move forward unless we move it forward. But &quot;we&quot; does not mean waiting for somebody else to do so. As SpaceX and Musk have demonstrated, it&#x27;s ultimately up to the individual to get up and move that line forward -- for the betterment of all.
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maxericksonabout 6 years ago
Large existing discussion at <a href="https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19639965" rel="nofollow">https:&#x2F;&#x2F;news.ycombinator.com&#x2F;item?id=19639965</a>
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plutonormabout 6 years ago
I wonder how they do the booster landings?<p>Is it precise modelling and standard control algorithms, or something more exotic like neural networks?
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usermacabout 6 years ago
I wonder what emergency procedure is in place in case the landing is off-course. Does it blow itself up?
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ineedasernameabout 6 years ago
Can someone explain why reusable mode can&#x27;t lift as much?
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andy_pppabout 6 years ago
Am I going mad I only see two booster landing in the video?
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Timpyabout 6 years ago
The way the text appears with a downward-drawing red line really steals my attention. There are rockets on screen and I kept having my eyes avert to the fragmented text in the bottom left corner. I had to watch the video twice to keep my eyes on the rockets. I&#x27;m thinking of the UI&#x2F;UX implications, subtle and effective.
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