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
  #31  
Old 04-09-2021, 07:02 PM
georgegassaway's Avatar
georgegassaway georgegassaway is offline
Contest, Sport, it's all good......
 
Join Date: Jul 2008
Location: West of Minneapolis, MN
Posts: 532
Default

BTW- the Atlas verniers WERE gimbaled for pitch/yaw/roll control. They had to be, because after the main engine shut down before final velocity, and the verniers kept firing to achieve the desired velocity, they had to control all three axes.

Also, the Atlas' outer two "booster" motors, did gimbal. So they provided the primary steering control for the Atlas until later in the launch when the two outer booster engines and the tail section they were mounted to dropped away (by that point the Altas had used up enough fuel that it could fly the rest of the way using just the non-gimbaled center engine's thrust). It is interesting that in old footage of Atlas launches, you could often see the Verniers gimbal many degrees for a moment during launch.

Here's a link about the Atlas Verniers, there's more info out there for however much one wants to google.

http://heroicrelics.org/info/lr-101/lr-101.html

BTW - as for the red "buckets", I didn't say it outright, but now I will. I'm pretty sure those were removed before flight. I am curious as to what purpose they do serve , though not enough to go on a deep dive to google or go on a group on say NasaSpaceFlight Forum to ask....the OP could just as easily do that.
__________________
Contest flying, Sport flying, it's all good.....
NAR# 18723 NAR.org
GeorgesRockets.com
Reply With Quote
  #32  
Old 04-10-2021, 10:34 AM
frognbuff frognbuff is offline
Aggressor Aerospace
 
Join Date: Oct 2012
Location: Colorado Springs, CO
Posts: 377
Default

George - nobody is saying a Vernier CAN'T gimbal - just that the ones on Soyuz and Long March do not, they are hinged.

We established the "remove before flight" status several posts ago. TBZEP pointed out the color (red = remove), and the handles are also a dead giveaway! JeffyJeep agreed too. Then TBZEP found the mounting right on the core nozzles. No way you fly with something mounted there!

As for what the heck they are - a desiccant is another possibility. If that were the case, however, you'd expect to see them in Kourou too.
Reply With Quote
  #33  
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: 2,534
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
  #34  
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: 2,534
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
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 04:01 PM.


Powered by: vBulletin Version 3.0.7
Copyright ©2000 - 2021, Jelsoft Enterprises Ltd.
Ye Olde Rocket Shoppe © 1998-2021