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| | | |-+  Saturn/NERVA Stages - Discussion Thread
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Author Topic: Saturn/NERVA Stages - Discussion Thread  (Read 12673 times)
Graham2001
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« Reply #15 on: March 30, 2009, 08:41:38 AM »

We seem to have been beaten to the punch by Anemazoso. He's done a version of the 210,000lb thrust level stage Baxter created for 'Voyage'.

Also found a few more possibly useful studies which I'm linking to below.

1. Nuclear rocket engine nozzle study final report (4mb)

2. NERVA engine explosive destruct system subtask 1.6 (9mb)

3. NERVA engine explosive destruct system, subtask 1.6.5 postoperation destruct (2mb)

4. Controls analysis of nuclear rocket engine at power range operating conditions (2.5mb)
« Last Edit: March 30, 2009, 09:04:29 AM by Graham2001 » Logged
Graham2001
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« Reply #16 on: May 05, 2009, 07:58:00 AM »

I've added to the wiki a document dealing with the NERVA stage that NASA was looking at for their Integrated Manned Program. The fuel tanks, but not the engine were going to be placed into orbit by the INT-21 from the looks of things. The engine was going to be taken into orbit by a space shuttle and docked to the fuel tanks in orbit.

However the cover picture (see attached) shows what looks like a CSM atop the NERVA stage.

See: Nuclear Shuttle System Definition Study. Phase III, volume 2 Concept and feasibility analysis. Part B Baseline system definition, Final report (169 pages, 35mb)


* RNS.png (42.91 KB, 1006x638 - viewed 588 times.)
« Last Edit: May 05, 2009, 09:44:16 AM by Graham2001 » Logged
Graham2001
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« Reply #17 on: May 08, 2009, 07:36:42 AM »

Found another document dealing with the early Saturn/Nerva planning. Seems to be part of a preliminary design study. Hopefully I'll be able to locate the rest of it soon.

Graham

See Saturn D preliminary design study. Volume 3: Appendices A through E(73mb)

Edit: I'm starting a thread to discuss just how to impliment a NERVA stage in NASSP. This thread will be used when/if additional documention becomes available.
« Last Edit: May 09, 2009, 05:28:51 AM by Graham2001 » Logged
Graham2001
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« Reply #18 on: May 14, 2009, 09:19:05 AM »

Something new has turned up on the NTRS. The first volume of a NERVA study dating from 1961, which is the same time frame as the stage I'm currently working on.

Development of the NERVA nuclear rocket engine and associated tasks. Volume 1: Technical discussion and program plan(311 pages 66.6 Evil or Very Mad mb)
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Graham2001
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« Reply #19 on: May 30, 2010, 10:41:04 AM »

I discovered two documents tonight that I somehow missed, they date from 1963 and deal with the NERVA rockets that were being developed at that time.

1. Nuclear Lunar Logistic Study (75pg 7mb)

2. Nuclear lunar logistics system study (99pg 32mb)
« Last Edit: July 02, 2010, 06:57:05 PM by Graham2001 » Logged

My lord, I aim a mile beyond the Moon.
Wm Shakespeare, 'Titus Andronicus'
movieman
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« Reply #20 on: October 03, 2010, 03:13:51 AM »

BTW, I was at the Nevada Test Site recently; I was hoping that I might see where NERVA was tested, but I don't even know whether there's anything left now.

Did get to Sedan Crater, which is one of the places the Apollo astronauts visited for geology training... with all the nuclear test craters around there I can see why NASA thought it was a good place to prepare for moon landings!
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Graham2001
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« Reply #21 on: May 28, 2012, 09:06:28 AM »

I'm currently downloading a whole series of documents related to the Phoebus-2 test reactor which was the largest one the US tested. Looks like most of it's related to the thrust chamber/nozzle design, but there's one 709mb file I've not looked at yet.
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My lord, I aim a mile beyond the Moon.
Wm Shakespeare, 'Titus Andronicus'
Graham2001
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« Reply #22 on: June 01, 2012, 08:27:23 PM »

I've finished looking through the various Aerojet documents relating to the Phoebus-2 version of NERVA. Almost all of them were concerned with nozzle development, but one looking into the possibility of clustering Phoebus-2 engines turned out to be the key.

From it I was able to get the planned performance figures:

Thrust: 240,000 lbs
ISP: 800 sec

There was also an unscaled diagram giving details of the stage that it was to be fitted to.

Advanced Engine Analysis (Large Diameter NERVA Clustering)


* HeavyNERVA.png (97.46 KB, 1014x648 - viewed 404 times.)
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My lord, I aim a mile beyond the Moon.
Wm Shakespeare, 'Titus Andronicus'
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