Ye Olde Rocket Forum

Go Back   Ye Olde Rocket Forum > Weather-Cocked > FreeForAll
User Name
Password
Auctions Register FAQ Members List Calendar Today's Posts Search Mark Forums Read


Reply
 
Thread Tools Search this Thread Display Modes
  #1  
Old 04-07-2021, 03:54 PM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 11,610
Default Buckets on Boosters

What are the buckets for on the outboard boosters?
https://www.nasa.gov/sites/default/...e8182e15_o.jpeg
__________________
I love sanding.
Reply With Quote
  #2  
Old 04-11-2021, 01:57 AM
Royatl's Avatar
Royatl Royatl is offline
SPEV/Orion wrangler
 
Join Date: Mar 2005
Location: Atlanta, GA
Posts: 2,645
Default

Quote:
Originally Posted by tbzep
What are the buckets for on the outboard boosters?
https://www.nasa.gov/sites/default/...e8182e15_o.jpeg


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)
__________________
Roy
nar12605
Reply With Quote
  #3  
Old 04-07-2021, 04:30 PM
Earl's Avatar
Earl Earl is offline
Apollo Nut
 
Join Date: Dec 2006
Posts: 4,894
Default

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
__________________
Earl L. Cagle, Jr.
NAR# 29523
TRA# 962
SAM# 73
Owner/Producer
Point 39 Productions

Rocket-Brained Since 1970
Reply With Quote
  #4  
Old 04-07-2021, 05:19 PM
jeffyjeep's Avatar
jeffyjeep jeffyjeep is offline
Old Submariner
 
Join Date: Jan 2009
Location: Home of Wayne & Garth
Posts: 7,760
Default

F.O.D. collection possibly?
__________________
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
Reply With Quote
  #5  
Old 04-07-2021, 05:27 PM
LeeR's Avatar
LeeR LeeR is offline
Retired with Way Too Many Kits
 
Join Date: Jun 2007
Location: Colorado
Posts: 3,222
Default

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.
__________________
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
Reply With Quote
  #6  
Old 04-08-2021, 06:45 AM
frognbuff frognbuff is offline
Aggressor Aerospace
 
Join Date: Oct 2012
Location: Colorado Springs, CO
Posts: 590
Default

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.
Reply With Quote
  #7  
Old 04-08-2021, 08:09 AM
tbzep's Avatar
tbzep tbzep is offline
Dazed and Confused
 
Join Date: Mar 2005
Location: TN
Posts: 11,610
Default

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.
__________________
I love sanding.
Reply With Quote
  #8  
Old 04-08-2021, 10:02 AM
Rocketflyer's Avatar
Rocketflyer Rocketflyer is offline
Member in Good Standing!
 
Join Date: Sep 2006
Posts: 1,209
Default

Quote:
Originally Posted by LeeR
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.


__________________
Enjoy life, it has an expiration date.
Reply With Quote
  #9  
Old 04-11-2021, 01:59 AM
Royatl's Avatar
Royatl Royatl is offline
SPEV/Orion wrangler
 
Join Date: Mar 2005
Location: Atlanta, GA
Posts: 2,645
Default

Quote:
Originally Posted by LeeR
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.


Well, "start" is their word for launch. And the launch pad, for that matter.
__________________
Roy
nar12605
Reply With Quote
  #10  
Old 04-25-2021, 08:50 AM
frognbuff frognbuff is offline
Aggressor Aerospace
 
Join Date: Oct 2012
Location: Colorado Springs, CO
Posts: 590
Default

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.
Reply With Quote
Reply


Thread Tools Search this Thread
Search this Thread:

Advanced Search
Display Modes

Posting Rules
You may not post new threads
You may not post replies
You may not post attachments
You may not edit your posts

vB code is On
Smilies are On
[IMG] code is On
HTML code is Off
Forum Jump



All times are GMT -5. The time now is 07:48 AM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2024, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2024