Author Topic: Modelling Mars  (Read 97648 times)

Offline Nittany Tiger

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Re: Modelling Mars
« Reply #540 on: 03/11/2017 01:46 AM »
I stand corrected, and granted it's been a year since I've read the story, and I don't have a copy.  LH2 shielding was my first thought on as to why the accident wasn't considered plausible.  Furthermore, I know the accident created a propellant leak that would have vented the protective LH2 as time went on.

Honestly, this whole tragedy could have been avoided if the test was unmanned, but RL NASA sent pilots on the first space shuttle flight, and they do sometimes toss safety aside (which played roles in both RL space shuttle disasters), so it's not implausible for this to happen in the story.  Honestly, I never saw it as implausible except that I think NASA might have had more failsafes built into a test NERVA and fly it unmanned.

It's just hard to say.

Also, I meant to say "containment failure."  I missed that error.  What I was thinking about was an electronic failsafe that would turn the graphite moderators to a full position to try to shut down the core if temps exceeded a certain threshold (and a temp increase did precede the explosion IIRC).  Containment failure would be the NERVA shielding blowing and spreading radiation out.

I have a limited knowledge of NERVA and nuclear reactors, so I'm prone to make mistakes.

It would be interesting to model the radiation field of an exposed NERVA core.  IIRC, only part of the shielding was busted, and it busted out the side, so I wonder how the radiation would spread out.

« Last Edit: 03/11/2017 01:55 AM by Nittany Tiger »

Offline Archibald

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Re: Modelling Mars
« Reply #541 on: 03/11/2017 02:14 PM »
There actually was an unmanned test that (of course) went perfectly. :(

The 1/72 scale Ranger is pretty cool, 1/72 was my favorite scale ten years ago (before I stopped modeling)

I wish there could be a Big Gemini add-on either in Kerbal or Orbiter. If anybody can help :p

ETS and my own TL Explorers started exactly the same  premise (entirely coincidentally) but they are entirely different. Ranulf, how is your TL going ?
« Last Edit: 03/12/2017 09:40 AM by Archibald »

Offline brickmack

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Re: Modelling Mars
« Reply #542 on: 03/12/2017 02:03 AM »
There actually was an unmanned test that (of course) went perfectly. :(

The 1/72 scale Ranger is pretty cool, 1/72 was my favorite scale ten years ago (before I stopped modeling)

I wish there could be a Big Gemini add-on either in Kerbal or Orbiter. If anybody can help :p

ETS and my own TL Explorers started exactly the same  premise (coincidentally) but they are entirely different. Ranulf, how is your TL going ?

Big Gemini is included in FASA for KSP (along with several other Gemini-derivatives) and is compatible with Realism Overhaul too

Offline Archibald

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Re: Modelling Mars
« Reply #543 on: 03/12/2017 09:39 AM »
very cool. What is FASA ?

Offline brickmack

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Offline Nittany Tiger

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Re: Modelling Mars
« Reply #545 on: 03/14/2017 05:31 PM »
Yeah, FASA has Big Gemini, MOL, the Saturn C-8, the M-1, and the 156" UA SRBs for any Saturn MLV you want to make.  It doesn't have stretched S-I, S-II, or S-IVB stages, but you can install procedural parts and add the stretching yourself.

Frizzank isn't working on FASA anymore, but I think someone else is updating it for people who want to use it in Real Solar System + Realism Overhaul installs.  You can get a stock version from them as well.

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