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#1
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Buckets on Boosters
What are the buckets for on the outboard boosters?
https://www.nasa.gov/sites/default/...e8182e15_o.jpeg
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#2
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Seems to be something for when the rocket is horizontal on the transporter/railway car. They may get detached before the rocket flies. (hey, sorry for being obvious, but I just got here)
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Roy nar12605 |
#3
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The boosters are liquid.
I was wondering if it is some sort of low positive pressure purge system for the empty liquid fuel tanks on the boosters, but those ‘buckets’ do not seem large enough to handle the volume of pressurized air (nitrogen or helium, usually) to adequately do that. Plus, that hose out the bottom of each looks more like a ‘drain’ almost of some kind. So, not really sure what they are. Earl
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Earl L. Cagle, Jr. NAR# 29523 TRA# 962 SAM# 73 Owner/Producer Point 39 Productions Rocket-Brained Since 1970 |
#4
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F.O.D. collection possibly?
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Never trust an atom. They make up everything. 4 out of 3 people struggle with math. Chemically, alcohol IS a solution. NAR# 94042 SAM# 0078 |
#5
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The buckets contain coiled up “starters” (interestingly, the Russians frown on the use of the term “igniters”, too). These are inserted while horizontal, to make sure they are fully seated. Then the plastic plugs are installed. To this day, much arguing ensues regarding connecting in parallel, or serially.
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Lee Reep NAR 55948 Projects: Semroc Saturn 1B, Ken Foss Designs Mini Satellite Interceptor In the Paint Shop: Nothing! Too cold! Launch-Ready: Farside-X, Maxi Honest John, Super Scamp |
#6
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Great question! I have always wondered about those devices too!
What is your source, Lee? Or are you just having fun? To me, these are definitely a fluid reservoir of some sort, since the designers went out of their way to have all four buckets in the "tube UP" orientation during horizontal assembly and transport. A hydraulic accumulator would likely work in any orientation, so that probably isn't it. Russian designers like to use a hypergolic "starter fuel" - one that reacts with LOX - to ignite their LOX/Kerosene engines. If that were the case, then one would also expect a "bucket" on the core too, but I don't see one there. |
#7
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The central core stage doesn't have one, so I'm sure Lee is just yanking our chain. We know they use a single igniter on the core and use thermalite to air start the sparky strap-ons. Unlike our BATFE, they haven't outlawed thermalite and igniters yet.
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#8
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#9
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Well, "start" is their word for launch. And the launch pad, for that matter.
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Roy nar12605 |
#10
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Rollout of Soyuz at Vostochny Cosmodrome and - no buckets!
https://www.youtube.com/watch?v=VdUc7i_NUkw Like Kourou, the vehicle stays vertical on the pad at Vostochny longer than at Baikonur. (They roll a vertical shelter over the vehicle on the pad at Vostochny). I definitely think there is some sort of fluid which is added when horizontal at Baikonur, but is likely added while vertical at Kourou for Vostochny - so, no need for "catch buckets" during those rolls. |
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