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Delta K Upper Stage 'RACS' System by Kartoffelkuchen on 26 Dec, 2014 17:51
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Hello guys, this is my first post here, and I hope you can help me.
So, I am trying to replicate the Delta II rocket, for a game called Kerbal Space Program, some of you might heard of this game already. So, I'm hanging on now on the Delta K upper stage. I used the Delta II Payload Planners Guide from the ULA Homepage as main reference, and it says there, that the Delta K has a 'RACS' System, which helps the stage to keep pointing in the right direction during unpowered flight. I've looked at some images now, but I can't figure out where the thrusters for this system are. Is there any specialist out here who knows anything about this? This would be so, so helpful!
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#1 by edkyle99 on 26 Dec, 2014 19:37
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Here's one drawing that may help.
This is from the following paper.
http://commons.erau.edu/cgi/viewcontent.cgi?article=2554&context=space-congress-proceedings
Note that this is the ITIP powered Delta 3920 second stage, which predated the AJ10 powered Delta 2 second stage but which shared many features.
The large version of the following image may show that RACS module section. RACS was/is a cold gas thruster system, so it has small "thrusters".
http://mediaarchive.ksc.nasa.gov/detail.cfm?mediaid=17986
- Ed Kyle
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#2 by Kartoffelkuchen on 26 Dec, 2014 19:46
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Hey, that's what I was looking for!
Thanks, this will help a lot I think. If you find anything else, feel free to post it! ^^
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#3 by Silmfeanor on 26 Dec, 2014 19:53
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You might want to search the images regarding the to-be-launched SMAP mission - on a Delta 2.
http://forum.nasaspaceflight.com/index.php?topic=34835.0
Lots of High-def pictures, of the upper stage aswell.
I think these 2 might be of particular interest to you:
http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=601275;image
http://forum.nasaspaceflight.com/index.php?action=dlattach;topic=34835.0;attach=601269;image
Thanks, this will help a lot I think. If you find anything else, feel free to post it! ^^