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Questions tagged [recovery]

Refers to retrieving spacecraft or related equipment instead of simply expending it. Use with the related equipment tag(s) (i.e. [rockets]).

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Chilling during restart of Spacex first stage engine [duplicate]

As I know that all the liquid rocket engines go through chilling process for different components (like pipes, engine, injector plate, etc.) before starting the ignition. At the time of launch the ...
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Does the downrange position of an ASDS vary, depending on payload mass?

SpaceX in its recovery attempts can either do a Return To Launch Site (RTLS) or land downrange on an ASDS landing barge. The Telesat 19V and 18V payloads were some of the heaviest payloads on the ...
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1answer
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Would having the Falcon fairing reconnect be possible/beneficial?

I understand that many of the problems with recovering the two pieces of the Falcon 9 fairing deal with the weird aerodynamic patterns of the descent. It is by no means an aerodynamically sound object ...
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Why is the first stage from the Falcon 9 SES-12 mission not recovered?

Youtube video here At 4:13 minutes into the Iridium-6/GRACE-FO NASA Launch, the commentator mentions: The first stage is not going to be recovered, so there won't be any views from the drone ship ...
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3answers
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Why won't they recover the Falcon 9 from CRS-14?

According to the upcoming livestream of SpaceX CRS-14 (resupply of ISS): SpaceX will not attempt to recover Falcon 9’s first stage after launch. Why not? Wasn't that the whole point of (among ...
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1answer
207 views

Falcon 9 fairings stability on reentry

On the descent of the fairings into the atmosphere how is stability provided? Why does it not start to rotate in a uncontrollable fall but reenter gently without apparently damage on the interior ...
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2answers
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Is SpaceX trying to catch two pieces of fairing with one boat?

During the Paz / Starlink demo mission (2/22/18), SpaceX attempted to catch the fairing before it splashed-down into the ocean. They failed to catch it by just a few hundred meters. My question is:...
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2answers
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What was the point of the re-entry and landing burn of the first stage of the GovSat-1 launch?

Supposedly SpaceX did not intend to recover the first stage of the GovSat-1 launch. If so, what was the point of doing a re-entry burn and a landing burn, if they were just planning on dumping the ...
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1answer
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Why are the new Titanium Grid fins not used on all Falcon 9 landings?

With the Block 4 version of the Falcon 9, one of the new features is the Titanium Grid fins, vs the previously used Aluminium fins. However, not all Block 4 flights have used the Ti vs Al fins. Is ...
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3answers
592 views

Why does one leg open slower than others on Falcon 9 landings?

I had noticed this before, but when landing, the legs do not open at exactly the same time or speed. For the CRS-13 mission, it was really obvious in this video around 50 seconds into the video. ...
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1answer
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Have there been individual satellites that have been deployed and recovered more than twice?

Have there been individual satellites that have been deployed into Earth orbit (or beyond) and recovered safely back to Earth's surface more than twice? Deployed means it's not a launch vehicle ...
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2answers
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What is a “re-radiation system”?

In SpaceX's Echostar XXIII Hosted Webcast after T+ 00:03:50 they mentioned the "re-radiation system" as a part of the payload fairing that increased it's value and ...
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2answers
753 views

Do 'size of a bus' sized F9 fairings ever float after impact? Are they navigation hazards?

This and this answer describe the Falcon 9 fairings as being quite large, with the payload volume being roughly "the size of a bus" or simply REALLY REALLY big. 13 meters by 4.6 meters and being ...
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3answers
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What makes 21st century fairings so valuable that they'd potentially be recovered and re-used?

I've read in @geoff's answer that SpaceX is doing some experimentation that may lead to fairing recovery capability. In fact I remember hearing Elon Musk mentioning a few years ago that it was being ...
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2answers
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Is there a way to recover any of the energy of reentry of a Mars lander?

Is there a way to recover any of the energy of reentry of a Mars lander? Tremendous energy is generated as a craft enters the atmosphere – admittedly over a fairly short time - and only one time. We ...
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Why is it such a big thing to recover the first stage in a reusable way? [duplicate]

When I got it right, the big problem to overcome for SpaceX was, to get the right technique to land the first stage properly. This requires the first stage also to have enough fuel, so it can burn ...
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1answer
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Why won't the SLS boosters be recovered?

The SLS will be using five segment boosters derived from the four segment ones used during the STS program. Almost all of the STS boosters were recovered and reused, however NASA doesn't plan to ...
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3answers
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How variable is the landing spot of a reusable Falcon 9 with a GTO payload

It is common knowledge know that SpaceX uses the landing barges when the requirements for the first stages are so high that a return-to-base is not achievable. This seems to occur both in case of GTO ...
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2answers
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Is the Falcon Heavy booster much simpler to land than the Falcon 9 first stage?

Given the fact that the Boosters of the Falcon Heavy will separate much earlier during ascent (and hence at much lower speeds), there should be a notable difference in the complexity (and thus chance ...
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2answers
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What are the version number and identification names for each Falcon 9-r boosters?

I would like to track the all the Falcon 9-r boosters that are landing or are attempting to land. I know that the third booster which landed successfully is the F9-0024-S1 but I don't know the ...
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1answer
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What is the burn time for the F9 boostback / reentry / landing burns?

I'm trying to figure out the timing of the 3 recovery burns and the total fuel reserve needed to perform them. [Answers Inlined] Boostback: [30] seconds of 3-engines at full-thrust. Reentry: [20] ...
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3answers
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Falcon 9 - fuel needed to hop back from a barge

There were multiple mentions of the future ideal first stage ASDS landings - if the mission won't have enough deltaV to do a RTLS, then just land on the barge, refuel and "hop" back to the launch site....
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1answer
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When/where did the cosmonauts fight wolves?

When/where did the cosmonauts fight wolves? or was it bears? With a gun? Could someone provide a more complete story? One of comments on the article TidalWave linked in the Soyuz joysticks question ...
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2answers
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What type of data did New Horizons send to Earth in order to diagnose the switch to Safe Mode issue?

Recently, the New Horizons spacecraft on its way to Pluto suffered a "hard-to-detect timing flaw in the spacecraft command sequence." Does that mean that it was a multi-threading error or something ...
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1answer
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How long does it take to recover the first stage of the Falcon 9?

When SpaceX recovers the Falcon 9 first stage at sea, roughly how much time passes between lift-off and soft touchdown on the barge?
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Why can the Falcon 9 be reused while the SLS cannot?

In reading about SLS, I learned that the reason they won't reuse their rocket is that the weight of the parachutes to enable recovery is too much of a sacrifice. How is the weight of the hardware and ...
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1answer
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What happens to the Soyuz boosters that land in the Kazakhstan desert?

The video below mentions that Soyuz boosters consistently land a certain distance away from the Baikonur Cosmodrome, in deserted areas. What happens to those boosters? I'd sure like to have an ...