OFMM General Discussions Archive

[Columbia42]

Or possibly this monster: Jarvis Heavy Launch Vehicle

Is that totally fictional or does it have some basis in reality?

 

[Bloodworth]

Is that totally fictional or does it have some basis in reality?

Not sure. Acording to the description, it was something that was at least proposed. As it is it uses entirely preexisting technology so I don't see why not.



According to a google search, the project WAS being worked on but was canceled in 1988.

 

[Bj]

Proton = same

I just download Energy Project
[nomedia="http://www.orbithangar.com/searchid.php?ID=1036"]ENERGY project, release 4[/nomedia]



From the wiki, it is just barely able to lift it up (with full payload of fuel) We can cut back fuel if need be, but anything wrong with using this vessel?

We could also try using the XR5 for on-orbit assembly, or a Nova SSTO...

Hey now I thought we where going with realistic? XR5? :rofl:

I'll try putting it on top of an Ares V rocket and see how it does.

Well at least it fits width wise..

Actually I think it will fit totally, it just needs a offset adjustment.

So Energy project or Aries V?

 

[Izack]

I'd hardly say that fits...I assume the fairing will be removed entirely? The NERVA is a good shape for the top of the rocket anyway.
I'm hesitant to use Energia if it can be helped. It's an excellent launcher, but I don't think it will carry the NERVA well.

 

[Columbia42]

I lengthened the fairings on my Ares V and it fits perfectly. The cargo variant lifts it to orbit with fuel to spare. I vote we use Ares V. We can launch the drop tanks seperately and then rendezvous in orbit.

 

[Bj]

I'd hardly say that fits...I assume the fairing will be removed entirely? The NERVA is a good shape for the top of the rocket anyway.
I'm hesitant to use Energia if it can be helped. It's an excellent launcher, but I don't think it will carry the NERVA well.

By width it fit, it still had another object below it, so it was put 'above' the module.

I tried again without that module,

actually the fairing isn't to short, its too long. Actually the fairing can be dropped down some.

And Energia doesn't look all that bad...

 

[Bloodworth]

And Energia doesn't look all that bad...

Now THAT'S a ROCKET!!!:thumbup:

 

[Izack]

Now THAT'S a ROCKET!!!:thumbup:

I don't know. I don't really like it somehow. Too off-balance.
I'd say the Ares V looks like the best choice. Also, Constellation needs a little glory.

 

[Kveldulf]

I don't know. I don't really like it somehow. Too off-balance.

I agree. The Energia looks like it would fall over on the pad with a good breeze.

 

[Bj]

I don't know. I don't really like it somehow. Too off-balance.
I'd say the Ares V looks like the best choice. Also, Constellation needs a little glory.

Yeah Ares V it is. Can someone make the INI file so that the Nerva fits perfectly inside the Ares (if it is not already done). We can distribute the Ares ini later.

Working on project guideline now

 

[Izack]

Yeah Ares V it is. Can someone make the INI file so that the Nerva fits perfectly inside the Ares (if it is not already done). We can distribute the Ares ini later.

Working on project guideline now

Speaking of that, call me an idiot but I still don't know how to put the NERVA into a scenario and have it work properly.

 

[Bj]

Speaking of that, call me an idiot but I still don't know how to put the NERVA into a scenario and have it work properly.

You can just use a scenario as an example.

NERVA2:Spacecraft/Spacecraft3
  STATUS Orbiting Earth
  RPOS -6522669.83 -859543.31 -315855.36
  RVEL 460.326 -596.130 -7741.924
  AROT -175.56 -3.12 -172.74
  VROT 0.00 0.07 0.00
  PRPLEVEL 0:0.955
  DOCKINFO 1:0,DT1 2:0,DT2
  NAVFREQ 0 0
  RCS 1
  CTRL_SURFACE 1
  CONFIGURATION 1
  CURRENT_PAYLOAD 0
END
DT1:NERVA_Droptank
  STATUS Orbiting Earth
  RPOS -6522670.99 -859534.18 -315856.33
  RVEL 460.326 -596.130 -7741.924
  AROT 4.44 3.12 172.74
  VROT 0.00 -0.07 -0.00
  PRPLEVEL 0:1.000
  DOCKINFO 0:1,NERVA2
  NAVFREQ 0 0
END
DT2:NERVA_Droptank
  STATUS Orbiting Earth
  RPOS -6522668.65 -859552.47 -315854.78
  RVEL 460.326 -596.130 -7741.924
  AROT 4.44 3.12 -7.26
  VROT -0.00 0.07 -0.00
  PRPLEVEL 0:1.000
  DOCKINFO 0:2,NERVA2
  NAVFREQ 0 0
END

Here's the thing, Nerva was created with Spacecraft3, and AFAIK, SC3 doesn't let you 'spawn' vessels while playing. So, we have 2 options; remake Ares V with velcro rockets (because they support using SC3), or write custom .dll for Nerva... add it to the list.

 

[Izack]

...write custom .dll for Nerva...

I believe Artlav wrote a dll for it.

Thanks for the scenario section, by the way. I think I get a few things I didn't before now.

 

[dougkeenan]

Am I doing the math right - a Nerva 2 alone masses about 55mt?

 

[Bj]

I believe Artlav wrote a dll for it.

Thanks for the scenario section, by the way. I think I get a few things I didn't before now.

Oh right, how many pages ago was that?

Am I doing the math right - a Nerva 2 alone masses about 55mt?

I dont think so,

inside ini file;

[CONFIG]
MESHNAME="NERVA2"
SIZE=30
EMPTY_MASS=42000
FUEL_MASS=58466

58466 + 42000 = 100,466 kg = 110.74 short tons

Anyway, graphical of our flight;

 

[Pablo49]

Nice Graphic Bj.

Also, I know it's ahead of time, since we aren't at Phase C yet, but I did start work on the greenhouses, since I have time to kill and I highly doubt these would be cut. So far I have it similar to George's UCGO dome, but wider and shorter and with concentric racks for plants and such. A solid ring (2 or so feet tall) for the base and the rest is inflated. I might add a couple trusses that go across the dome.

 

[Urwumpe]

For the MSS - The maximum long-term spin-rate for producing artificial gravity without critical Coriolis force is 6 rpm, and since I assumed in the hab design that it gets such artificial gravity during Mars-Earth transfer (only short phases of micro-gravity), this means the minimum distance from rotation axis to Hab bottom is 12.6 meters. If we use a longer radius, the differences in artificial gravity become less, and we can use even smaller rotation rates.

Thus a long boom like structure would be optimal in the MSS design. If we want only 10% variance in artificial gravity between top and bottom of the hab, the length would have to be 126 meters...it scales linear.

http://iaaweb.org/iaa/Scientific Activity/Study Groups/SG Commission 2/sg22/sg22finalreportr.pdf

 

[DanScall]

What's the sort of "upper limit" than a NERVA can push to Mars, with enough fuel to get itself (but not the other modules) back home?

 

[Columbia42]

I've got an .ini file with a NERVA that fits perfectly in the Ares V ready. Since I had to change some meshes too it's really a whole addon. Should I upload it now or wait until we're farther along?

 

[Urwumpe]

I've got an .ini file with a NERVA that fits perfectly in the Ares V ready. Since I had to change some meshes too it's really a whole addon. Should I upload it now or wait until we're farther along?

.ini for the NERVA or a .ini for the launcher? the NERVA2 has a DLL already, which compensates CoG shifts.