Author Topic: The Shuttle Centaur  (Read 68482 times)

Online DaveS

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Re: The Shuttle Centaur
« Reply #100 on: 11/22/2014 12:25 AM »
I think it would be best to post them as normal attached/embedded files.
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Offline L5

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Re: The Shuttle Centaur
« Reply #101 on: 11/22/2014 03:18 AM »
OK, I will do that on the main thread. I have also located a few youtube videos on S/C.
Here is just one.


Also, I have a pic of the G' with TPS, but I can't find the original yet.
Here is a screenshot of it.
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Offline L5

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Re: The Shuttle Centaur
« Reply #102 on: 11/23/2014 03:01 AM »
Do you have any titles or NASA reference date to start the search with? Most of our Centaur data comes from the Centaur G Prime Technical Description and some documents from the NASA Technical Report Server (NTRS).

Also, any other photos showing the Centaur with the TPS applied would be great. The only S/C photos I have is of the one on exhibit at the US S&RC, but it along with the CISS it is mated to, has had alot of hardware including the TPS removed.

And do feel free to join and post anything in our Centaur thread.

Here is the main NASA Software catalog and a schedule for the SIF.
The software I reviewed and approved was very well annotated/remarked. My requirement was that I should not need to know a single line of code to review any software program if the remarks were simply complete and accurate.
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Online DaveS

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Re: The Shuttle Centaur
« Reply #103 on: 11/23/2014 09:46 AM »
Well, it isn' in it the NASA Software Catalog and besides, even if it was, it would most likely be US-only which is a hard NO-GO for us.

We'll just await the whatever documents you can provide and make our own from those.
"For Sardines, space is no problem!"
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"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Online DaveS

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Re: The Shuttle Centaur
« Reply #104 on: 11/24/2014 03:44 PM »
Another thing we're very interested in is any photos or schematics of the control panel(s) for the Centaur/CISS that would have been installed on the aft flightdeck of the orbiters. This is something that has eluded us for a long time.

I have attached a schematic of the IUS Power Control Panel as an example of what we're looking for.
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Online AnalogMan

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Re: The Shuttle Centaur
« Reply #105 on: 05/20/2015 06:29 PM »
Thought this recently published Technical Paper - "RL10 Engine Ability to Transition from Atlas to Shuttle/Centaur Program" - might be of interest for this thread.

http://ntrs.nasa.gov/archive/nasa/casi.ntrs.nasa.gov/20150008246.pdf

Abstract
[] This paper describes the transition of the Atlas/Centaur RL10 engine to the Shuttle/Centaur configurations; shows the unique versatility and capability of the engine; and highlights the importance of ground testing. Propulsion testing outcomes emphasize the value added benefits of testing heritage hardware and the significant impact to existing and future programs.

It was originally prepared for the 50th Joint Propulsion Conference in Cleveland, Ohio, July 2830, 2014

(Copy also attached)

Online DaveS

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Re: The Shuttle Centaur
« Reply #106 on: 04/01/2016 12:21 AM »
collectspace.com article on the Centaur G Prime/Centaur Integrated Support System exhibit move from the US Space & Rocket Center to NASA Glenn for its 75th anniversary: http://www.collectspace.com/news/news-033016a-centaur-g-prime-move.html
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline zubenelgenubi

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Re: The Shuttle Centaur
« Reply #107 on: 04/28/2016 12:41 AM »
collectspace.com article on the Centaur G Prime/Centaur Integrated Support System exhibit move from the US Space & Rocket Center to NASA Glenn for its 75th anniversary: http://www.collectspace.com/news/news-033016a-centaur-g-prime-move.html
Robert's informative article mentions:
Quote
One of the Centaur-G Prime stages built for the shuttle is believed to have been modified for the launch of NASA's Cassini probe to Saturn atop a Titan IVB rocket in 1997.

The Space and Rocket Center had labeled the Centaur-G now being moved as a mockup, though there is some data that points to it being the other stage originally built for the program. Glenn Research Center's records identify it being a high-fidelity ground test article.

I have some follow-up questions.

Are there any pictures of the Centaur's arrival at NASA Glenn?

Do we know how many Centaur G and Centaur G Prime upper stages were built? Or partially assembled?

I'm counting:
1 ground-test article
1 Centaur G' for Galileo
1 Centaur G' for Ulysses
more?

Were any Centaur G stages manufactured?

What about the preparations for Shuttle/Centaur launches from Vandenberg--was there any hardware already on-site?

Is it likely that the other Centaur Gs and G Primes were modified and used in Titan IV/Centaur launches?
Is it possible that they were scrapped?

As always, I'm grateful for any answers that the forum members are able to provide!
« Last Edit: 04/28/2016 12:42 AM by zubenelgenubi »
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Offline Jim

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Re: The Shuttle Centaur
« Reply #108 on: 04/28/2016 02:12 AM »

1.  Were any Centaur G stages manufactured?

2.  What about the preparations for Shuttle/Centaur launches from Vandenberg--was there any hardware already on-site?

3.  Is it likely that the other Centaur Gs and G Primes were modified and used in Titan IV/Centaur launches?



1.  One tank I believe

2.  Was only a study.  Never got close to the hardware stage.

3.  G's were not going to fly on Titan.  Only G primes.

Online DaveS

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Re: The Shuttle Centaur
« Reply #109 on: 07/15/2017 01:42 PM »
Is there any lists that show the changes made to the Centaur G Prime to enable it to fly as an upper stage option on the Titan IV? Was there any changes to the tank pressurization system that was one of the reasons that the Centaur G/G Prime got the axe as an shuttle upper stage?
"For Sardines, space is no problem!"
-1996 Astronaut class slogan

"We're rolling in the wrong direction but for the right reasons"
-USA engineer about the rollback of Discovery prior to the STS-114 Return To Flight mission

Offline Jim

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Re: The Shuttle Centaur
« Reply #110 on: 07/15/2017 02:28 PM »
Is there any lists that show the changes made to the Centaur G Prime to enable it to fly as an upper stage option on the Titan IV? Was there any changes to the tank pressurization system that was one of the reasons that the Centaur G/G Prime got the axe as an shuttle upper stage?

Just avionics transmitters to be compatible with the Ranges and AFSCN.  There was no need to change the pressurization system since it was fine for ELV's.  There wasn't any need to carry a CISS pressurization system because of the short duration before first engine burn

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