Author Topic: SpaceX Falcon 9 : GovSat-1 (SES-16) : Jan 31. 2018 - Discussion  (Read 128702 times)

Offline hamerad

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I wonder what sort of plan SpaceX is hatching to recover the stage?...  ???

'We'll think about it once FH recovery is done' ?

Wait until after FH and tow two in for the price of one 😉

Offline Ben the Space Brit

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I wonder what sort of plan SpaceX is hatching to recover the stage?...  ???

Where are the Liberty Star and Freedom Star these days anyway?
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Offline matthewkantar

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Freedom star is in reserve with the USDOT, Liberty Star is now TV Kings Pointer with the USMMA.

Offline russianhalo117

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Freedom star is in reserve with the USDOT, Liberty Star is now TV Kings Pointer with the USMMA.
All shuttle specific hardware was removed after SRB recovery was dropped from SLS.

Offline Rangertech1

It will be a difficult task to tow that booster if they attempt it at all. Not as simple as attaching a cable. I doubt it has any cathodic protection either. Those are the sacrificial blocks of metal that corrode in lieu of the hull. In this case the hull is very thin aluminum. If it makes it back, it will look like moths have been chewing on it. Another first for SpaceX. First flown booster done in by electrolysis.
Solid Rocket boosters get a bum rap. " Fireworks," I beg your pardon Sir! Cheap thrust is still thrust.

Offline SLC

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Have there been any more pictures of Floaty McFloatface, apart from the original one from Elon?

Offline penguin44

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Could they use a cargo crane helicopter to fly it to shore?

Online pb2000

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Could they use a cargo crane helicopter to fly it to shore?
Nope, way too heavy.
Launches attended: Worldview-4 (Atlas V 401), Iridium NEXT Flight 1 (Falcon 9 FT), PAZ+Starlink (Falcon 9 FT)

Offline Pete

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Could they use a cargo crane helicopter to fly it to shore?
Nope, way too heavy.

If by "they" you mean SpaceX or the US, no.

If your "they" includes the russian military, sure. The Mi-26 can carry 20 tons easy, with a range of more than 800km.
Fishing something out of the water might be a bit more of a challenge, of course.
And one would presume that SpaceX, the US navy, and many others would have something to say about such an attempt, so...no.

Offline John Alan

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Could they use a cargo crane helicopter to fly it to shore?
Nope, way too heavy.

Agreed... not even close... if still in one piece...  I cited sources...
F9 Stage 1 dry [1] is over weight for even the mighty Mi-26 [4] to budge...  ;)
And the CH-47 [2] and CH-53 [3]?... no way...  :P

[1] https://en.wikipedia.org/wiki/Falcon_9_Full_Thrust#Vehicle_specifications
[2] https://en.wikipedia.org/wiki/Boeing_CH-47_Chinook#Specifications_(CH-47F)
[3] https://en.wikipedia.org/wiki/Sikorsky_CH-53E_Super_Stallion#Specifications_(CH-53E)
[4] https://en.wikipedia.org/wiki/Mil_Mi-26#Specifications_(Mi-26)
« Last Edit: 02/04/2018 08:11 AM by John Alan »

Offline Kaputnik

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It will be a difficult task to tow that booster if they attempt it at all. Not as simple as attaching a cable. I doubt it has any cathodic protection either. Those are the sacrificial blocks of metal that corrode in lieu of the hull. In this case the hull is very thin aluminum. If it makes it back, it will look like moths have been chewing on it. Another first for SpaceX. First flown booster done in by electrolysis.


Just to be pedantic, it's anodic protection that is required. And aluminium is actually reasonably tolerant of corrosion. It depends on the exact alloy used, but bare aluminium hulls can last for decades in seawater (I use such a vessel everyday at work).
Waiting for joy and raptor

Offline ziceva

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Could they use a cargo crane helicopter to fly it to shore?
Nope, way too heavy.

Agreed... not even close... if still in one piece...  I cited sources...
F9 Stage 1 dry [1] is over weight for even the mighty Mi-26 [4] to budge...  ;)
And the CH-47 [2] and CH-53 [3]?... no way...  :P

[Not that it is in any way realistic to use that (and probably straying offtopic) but ..] The world record for helicopters is 40000 kg (@ a height of more than 2km) ... too bad only prototypes were ever built ... and are by now probably rusted all up .. I am talking about the older cousin of the Mi-26 .. the Mil V-12 ...
« Last Edit: 02/05/2018 08:17 PM by ziceva »

Offline .Scott

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« Last Edit: 02/06/2018 12:07 PM by .Scott »

Online abaddon

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Has anyone else noticed that SpaceX still hasn't posted the launch webcast on their youtube page?

Maybe they're just busy right now... can't imagine what that might be... but it still seems a little odd.

Offline cscott

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And still sitting there.  So no role in FH, apparently.  I guess not terribly surprising there's no fairing recovery attempt this mission.
Elon tweeted out a graphic timeline for the FH flight which included fairing recovery, but it turns out it was an NSF-created graphic. I'm going to stick with "no fairing recovery on FH".

So Go Searcher is done, I guess. I wonder what's going on in the Bahamas?

Offline symbios

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It will be a difficult task to tow that booster if they attempt it at all. Not as simple as attaching a cable. I doubt it has any cathodic protection either. Those are the sacrificial blocks of metal that corrode in lieu of the hull. In this case the hull is very thin aluminum. If it makes it back, it will look like moths have been chewing on it. Another first for SpaceX. First flown booster done in by electrolysis.


Just to be pedantic, it's anodic protection that is required. And aluminium is actually reasonably tolerant of corrosion. It depends on the exact alloy used, but bare aluminium hulls can last for decades in seawater (I use such a vessel everyday at work).

Unless you have an electrical error in which case it can corrode over night... :)
I'm a fan, not a fanatic...

Offline russianhalo117

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Has anyone else noticed that SpaceX still hasn't posted the launch webcast on their youtube page?

Maybe they're just busy right now... can't imagine what that might be... but it still seems a little odd.
it is there, just unlisted as all livestreams are after they conclude. that is so copyrighted music can be removed before making it public again.

Online abaddon

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it is there, just unlisted as all livestreams are after they conclude. that is so copyrighted music can be removed before making it public again.
Right, usually they make it public within an hour or so of mission completion, so it's just a little weird.

Offline russianhalo117

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it is there, just unlisted as all livestreams are after they conclude. that is so copyrighted music can be removed before making it public again.
Right, usually they make it public within an hour or so of mission completion, so it's just a little weird.
It is still viewable in unlisted mode with the edits made but they forgot to relist after the edit.

« Last Edit: 02/06/2018 06:59 PM by russianhalo117 »

Offline OxCartMark

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So what's the news with the hauling backing of the splashdowned core?

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