Questions tagged [fairings]

Questions regarding the hardware, development, use and cost of rocket fairings and protective shells.

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1answer
112 views

What are the longest current rocket payload fairings, capable of carrying long space station sections?

Space News' China launches Tianhe space station core module into orbit China successfully launched a 22-metric-ton module April 28, beginning an intense period of missions for constructing the nation’...
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Are SpaceX Falcon rocket boosters significantly cheaper to operate than traditional expendable boosters?

The title pretty much sums it all up. I remember somebody once remarked about the space shuttle program that “the space shuttle was originally designed to be a space truck. But the shuttle is to ...
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Have any stages of rocket killed aquatic animals?

This question may seem off-topic but I am curious.Those rockets that aren't reusable let their stages fall and splash down on the ocean. Is there any news reported that they have killed some aquatic ...
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How hot the payload fairing of Falcon 9 can get?

When going up, what is the peak temperature of the Falcon 9 payload fairing? Is it heating uniformly or there is a significant temperature difference between various regions of the fairing?
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How long it takes for the Falcon 9 payload fairings to reach the sea?

The payload fairings of Falcon 9 are released at about 3:15 min How much time they need to fall and reach the sea? And what is their maximum speed while reentry?
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What are the protrusions on the outside of the Falcon 9 nose fairing?

Near the base of the Falcon 9 nose fairing is an array of square protrusions (marked in red) that you'd probably want to avoid unless they serve a very essential purpose. Does anyone know what that ...
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What happens to payload fairings of GEO launches?

Say you launch a satellite into GEO using Falcon9 The 1st stage returns The 2nd stage is moved into graveyard orbit. But what happens to the payload fairings?
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1answer
134 views

Does RUAG Space recover and reuse Ariane 5 and Atlas V payload fairings after splashdown?

RUAG Space is the company that manufactures payload fairings for the Ariane, Vega, Atlas V (500 series) and the upcoming Vulcan. Back when Spacex started trying to catch the fairing without it hitting ...
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Was ULA's mobile clean room on the ground floor or up near the top of the rocket? What were the logistics for getting Perseverance up there?

Spaceflight Now's ULA’s Atlas 5 is NASA’s go-to rocket for nuclear-powered space probes quotes Tory Bruno, president and CEO of United Launch Alliance: Bruno said the mobile clean room set up inside ...
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1answer
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What are the needle pins that go through the pneumatic pushers of the Falcon 9 fairing?

The Falcon 9 fairing uses four pneumatic pushers to impart a positive separation force between the fairing halves. The pushers all mount on half of the fairing and push against the other half. But ...
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Would the 6.5 ton capable Blue Moon lander fit in New Glenn?

As the 2 massive projects of the same company, are they designed to be compatible for NASA's CLPS program ? New Glenn's said to have a 7 m payload fairing diameter but as far as I know, Blue Moon's ...
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1answer
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Shape of satellite launch vehicle

I was watching videos on YouTube, and I came across a fact that satellite launch vehicle has shape like a nose or you can ogive shape and I search on Google related to that, and I found that it ...
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Calculating trajectories of payload fairings

How can I calculate the trajectory of a payload fairing assuming that I have several data points of height or speed of rocket? I'd like to know which topics are necessary to study this.
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How do ships catch fairings? Can fairings steer or do the ships do all the work?

A comment in The Pod Bay says it all: ...fourth Starlink payload launched. Booster landed on OCISLY. (Has now launched three times, LC-39A, SLC-40, SLC-4W once at each launch pad they own!) And they ...
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How come the SpaceX fairing doesn't get burned on return? [duplicate]

In the SpaceX January 29, 2020 Starlink mission, the fairing separation happened at the altitude of 104 km, speed 8636 km/h. SpaceX is trying to retrieve the fairing halves and reuse them. 104 km is ...
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How long does the SYLDA fairing stay in orbit after deploying?

For dual-manifest missions, Ariane 5 often uses the Système de Lancement Double or SYLDA system to encapsulate the lower of two stacked satellites. It can be seen in the following image encapsulating ...
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Why is the diameter of the boosters of some launch vehicles smaller than the diameter of their payload fairing?

Whilst watching yesterday's Starliner launch I've noticed how skinny that Centaur (3.1m) looks compared to the CST-100 (4.5m). Looking up the Atlas V I was amazed to find out that it has even larger (...
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What is the surface area of Falcon 9 payload fairing?

what is the external surface area of the payload fairing of the Falcon 9 ?
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What is the fate of SLA fairings jettisoned from lunar mission spacecrafts?

After TLI burn, just before Transposition, Docking and Extraction, the later design crafts jettisoned 4 pieces of the SLA fairing/shroud. These 4 pieces supposedly would follow similar path as the CSM/...
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1answer
107 views

Why use an air conditioning blanket instead of supplying air into the fairing?

This answer explains that some Atlas payloads were covered in an air coditioning blanket before launch. I can imagine that the payload has some thermal requirements, but a blanket looks lust plain ...
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Has one satellite's outgassing ever affected another satellite in the same fairing? Documented examples?

At about 01:31 in Scott Manley's new video RocketLab & Reusable Rockets - Plasma Knifes, Ballutes, Helicopters and... Elephants he says: This occurs during a ...
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What (the heck) is this purple donut in the video of the Falcon 9 fairing's atmospheric reentry?

This SpaceX tweet (found in CNET's SpaceX camera captures incredible view of rocket part returning to Earth) shows a video taken by a camera in one half of the fairing on the recent STP-2 mission and ...
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Reusable spacecraft: why still have fairings detach, instead of open/close?

Why do reusable rockets (e.g. SpaceX Falcon 9) still utilize detachable fairings? SpaceX keeps trying to find a way to recover the $6M fairings for obvious cost saving reasons, why not have them ...
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1answer
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Could a fairing vacuum protect the payload from acoustic loads?

This is a weirder question, but here it goes: During launch, a payload (let's say a satellite) undergoes intense shaking and acoustic loads. This is known from the launcher parameters and the ...
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Would it be practical to add side payloads on top of Falcon Heavy's side boosters?

Those side payloads / side fairings, would be strapped on central core second stage, on top of side boosters. The idea is to increase payload volume without (that much) changing drag during the lift ...
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How are interplanetary spacecraft protected from biological contamination while being integrated on their launchers?

After having been disinfected in some NASA lab for forward planetary protection reasons, how are spacecraft stored and brought to the launch pad and loaded into the fairings, in order to prevent them ...
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Is half of a SpaceX fairing a viable lifting body?

If it was powered, would a shape such as a half-fairing produce any lift, or could it be modified to both work as fairing, and lifting body?
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Payload fairing separation- Event based or time based?

Refer the answer for this question How strong and "hot" is the wind on the payload after the fairing is deployed at ~110km? It is clear that the fairings are separated when the free ...
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On large diameter Atlas V fairings, why is the Centaur inside the fairing?

When including an image in an answer to this question: Was New Horizons launched on a copper rocket? I noticed that for the larger diameter fairings (Atlas 501 and up) the Centaur upper stage is ...
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1answer
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Which one of these (if any) is the Moon? What are the rest?

I frequently see the Moon in SpaceX videos, "I suspect" the frequency is higher than random, but can't prove it (yet!) I found the SpaceX video Falling Back to Earth | HD Footage From Space (also ...
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1answer
552 views

How is payload fairing designed?

What are all the design criteria considered when designing a payload fairing (some are payload volume, drag) ?
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Falcon fairing half - between separation and parachutes deployment

How does Falcon fairing half behaves in atmosphere before parachutes deployment? What is its free fall attitude in atmosphere? Is the fairing's attitude stable (with some wobbling, but without ...
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1answer
231 views

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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1answer
387 views

Why doesn't SpaceX deploy some module to cover whole fairing like a rain coat just before sea landing? [duplicate]

In order to avoid fairing to get wet in water, why can't SpaceX just deploy something such that when fairings separate from the Falcon 9 then from inside some raincoat type waterproofing to just cover ...
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Why can't Falcon 9 fairings touch the water?

SpaceX is spending considerable effort to catch Falcon 9 fairings into a giant net on a ship. I am aware that salt water ruins almost everything in the long run, but the fairings are a composite ...
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1answer
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What makes it so hard to precisely land a fairing?

SpaceX currently tries to land their fairing halves on a boat with a net attached to it. So far they had no success but landed nearby, although quadrupling the net area. They first tried with this ...
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1answer
286 views

How is Mr Steven piloted when catching a fairing?

Mr Steven is the ocean-going vessel used by SpaceX in its attempts to catch re-entrant Falcon 9 fairings for possible reuse. How is this ship controlled during fairing catch attempts? Is she* manned ...
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Why aren't payloads their own fairings?

...or if they can, why so rarely? I mean: instead of placing a satellite of nondescript shape inside a fairing which is discarded somewhere above the atmosphere, build it in such a way that its ...
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How far apart do both SpaceX half fairings splash down?

Inspired by this question: How far apart from each other (both in space and time) do the two halves of a Falcon fairing land? I'd also be curious to know what's the error margin they have on this. ...
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1answer
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What are these tiles inside the Falcon 9 fairing?

The three photos in SpaceX's recent tweet about attempting to recover the GRACE-FO/Iridium-6 fairing halves included a close-up of the inside of the fairing: [] What do those black tiles with the ...
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How does SpaceX decide which half of the Falcon 9 fairing to catch?

Question: How does SpaceX decide which half of the Falcon 9 fairing to catch if they are only going to catch one half? Is one half more expensive and/or well instrumented than the other? Images from ...
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1answer
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How much does a current F9 fairing-half weigh?

Question: How much does a current F9 fairing-half weigh? Is this resting on something, or is it really floating this high in the water? Images from this SpaceX tweet: Falcon 9 fairing halves ...
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Why did this fairing separation happen at such a high altitude? (SpaceX Iridium-6/GRACE-FO)

I noticed in the video of the recent Iridium-6/GRACE-FO launch that the fairing separation happened at an altitude of about 143 kilometers. This is significantly higher than any altitude I can ...
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1answer
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Why is Falcon 9's fairing so big?

The Falcon 9 fairing costs millions of dollars. It is 5.2 meters wide while the rocket itself is only 3.7 meters wide. There is no aerodynamic reason that the fairing has to be so big, since Dragon ...
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1answer
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Are all payload fairings this floppy?

When I watched the launch of HYLAS-4 and Superbird-B3 on Ariane 5 ECA, for a moment it seemed that ESA is also experimenting with fairing recovery - with a fairing which flaps its wings and flies like ...
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1answer
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Why is Mr. Steven in California and not Florida

Mr. Steven is the ship that is used to catch fairings. There is one of these thus far, and it is based to assist Vandenberg, not Cape Canaveral. Why are they choosing to test the fairing catching in ...
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Pressure inside a launch fairing - falcon 9

This article indicates that a faclon 9 launch is being delayed due to an issue with the "payload fairing pressurization system". Are launch fairings pressurized to 1 atmosphere for the benefit of the ...
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1answer
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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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Were MicrosatA-B represetative of final design for Starlink?

The reason I ask is that when you need to launch 4400 satellites packing them tightly to get as many on a launch as possible is a huge component. The possible numbers were discussed int this question:...