Request Any SLS and Orion MPCV in development?

That's ISP in seconds, needs to be in m/s, so I *think* you times it by 9.8 m/s^2 (seconds cancel out, you're left with m/s) = 1381 m/s. I could be wrong, however.
 
Any one had issues with the stage 1 and stage 2 SLS?

On the crew version. I have more questions.
http://www.nasa.gov/pdf/664158main_sls_fs_master.pdf

On the ICPS any dimensions., specs. I just took my EUS and made 1 thruster. Reduced the diameter.

On the Orion. The capsule is about 5.03 meters id diameter. So does the (3 sided Shell completely enclosed the Orion capsule. And then the LAS tower fits on top?
Here you can see what I have but the cover sticks out. Not sure if that is right.
https://dl.dropboxusercontent.com/u/71242599/slsorion2.jpg
Interstage off.
https://dl.dropboxusercontent.com/u/71242599/slsorion3.jpg

On the second stage version there is plenty of room. You might could throw a lander in there.
https://dl.dropboxusercontent.com/u/71242599/oriontop.bmp

I think for the 2 cargo version Velcro works. But for the crew version. I think I may need to make a dll version. I am not sure if you could use the LAS with Velcro.
 
The interim cryogenic stage is just the Delta upper stage that's commonly used to send satellites into geosync orbit.

[ame="http://en.wikipedia.org/wiki/Delta_Cryogenic_Second_Stage"]Delta Cryogenic Second Stage - Wikipedia, the free encyclopedia[/ame]


And I found a nice artist rendering of the SLS crew launch on the page about EFT-1.

Art_of_SLS_launch.jpg
 
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The usage of the Velcro LAS has to have the same technique as in Velcro Saturns in similarity to the AMSO related scenarios.
 
Thanks. I found the specs here.
[ame="http://en.wikipedia.org/wiki/Space_Launch_System"]http://en.wikipedia.org/wiki/Space_Launch_System[/ame]

Have you tried the 1st or 2nd stage version?

Like I said I think to get a good working version. I may need to a dll. Anyone game?

I will look at the Velcro Saturn and see if I can duplicate it.
 
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Hey, I'm trying to find a place to download vinka's spacecraft3 because the link in the mods hanger are dead. I really need it to open up constellation orion cev. I just asked this in the add ons folder, since I didn't find a similar topic, but I had hoped that someone in this thread had a copy they could throw me.
 
Sorry for being mostly silent lately- haven't had time to post or even do anything Orbiter related.:(

Velcro's manual has more info, but you can have a LAS; though it's not a 'full' or working LAS. It just jettisons off a CVEL payload(the first payload defined) and ignites that payloads engine's. Acts kinda like a tractor-style LAS when it's jettisoned, but that's all it does.

Despite those limitations, I think Velcro's simple LAS is suitable at this point; Velcro-built rockets don't currently have a way to fail, and the effect of the LAS jettisoning during a good launch is decently replicated with the LAS command. Something more would be better, but I'm also interested in preventing the search for ' better' from bogging down the progress thus far.:2cents:


Anyway, for a Delta upper stage, there's one in the Velcro EELVs pack. Even if you make your own Delta upper stage mesh, it could provide a config to copy/modify.
 
Thanks. I am working on new meshes. So it looks like the LAS tower/cap fits just around the Orion Capsule and the 3 fairing cover the service modules

---------- Post added at 08:26 PM ---------- Previous post was at 12:35 PM ----------

New meshes but still haven't got the sequence right

https://dl.dropboxusercontent.com/u/71242599/slscrewlaunch2a.jpg
https://dl.dropboxusercontent.com/u/71242599/slscrewlaunch2b.jpg

Looking at the Saturn V scenario.
It has the core and interstage. But the interstage has thrusters.

PHP: 
s1cinter:Velcro/s1cinter
  STATUS Landed Earth
  BASE Cape Canaveral:6
  HEADING 0.00
  TGT_HEADING 095.0
  FUEL 1.000
  CONFIGURATION 0
  CAMERA 0 0 90.0
  SERIESBURN 0 S-II 0.0 0.0 -9.25  0.0 1.0 0.0 
END
S-1C:Velcro/S1C
  STATUS Landed Earth
  BASE Cape Canaveral:6
  HEADING 0.00
  TGT_HEADING 095.0
  FUEL 1.000
  CONFIGURATION 0
  CAMERA 0 0 90.0
  SERIESBURN 0 s1cinter 0.0 0.0 18.25 0.0 1.0 0.0
END

Code: 
; === Configuration file for vessel class Generic CVEL stage (Saturn-IC booster interstage) ===

Module = Velcro
Meshname = Velcro/Parts/s1cinter
Size = 24.0

Mass = 5000 ; empty mass [kg]
MaxFuel = 5000 ; max fuel mass [kg]
Isp = 2820        ; fuel specific impulse [m/s]
IspSL = 2430

MaxMainThrust = 3000000.0
MaxRetroThrust = 0
MaxHoverThrust = 0
MaxAttitudeThrust = 1.0
COG_OverGround = 4.0
CameraOffset = 0.0 0.0 18.06
CW = .2 .3 .7 .7
LiftFactor = 0.0
CrossSections = 120.0 120.0 65.0
RotResistance = 0.7 0.7 0.3
Touchdownpoints = 0 4.4 -24.1  4.4 0 -24.1  -4.4 0 -24.1

; === Attachment specs ===
BEGIN_ATTACHMENT
C  0.0 0.0 18.06      0 0 1  0 1 0  VELCRO1
C  5.25 0.0 0.0      0 0 1  -1 0 0  VELCRO2
P  0.0 0.0 18.06      0 0 1  0 1 0  VELCRO3
P  5.25 0.0 0.0      0 0 1  -1 0 0  VELCRO4
END_ATTACHMENT

; === Engine reference points ===
ExhaustType = SRM
MEngineRef1 = 5.5 0 18.12
MEngineRef2 = -5.5 0 18.12
MEngineRef3 = 0 5.5 18.12
MEngineRef4 = 0 -5.5 18.12
MEngineRef5 = 3.89 3.89 18.12
MEngineRef6 = -3.89 3.89 18.12
MEngineRef7 = 3.89 -3.89 18.12
MEngineRef8 = -3.89 -3.89 18.12


---------- Post added 10-08-14 at 05:49 AM ---------- Previous post was 10-07-14 at 08:26 PM ----------

This scenario follows the Saturn V pattern. But I get a CTD with nothing in the log. I have the SLSinter.cfg in vessels/Velcro folder. And the mesh is there in the meshs and meshs/velcro.

Code: 
SLSICPS:Velcro\slsICPS
  STATUS Landed Earth
  POS -80.6745292 28.5191812
  HEADING 0.00
  ATTACHED 2:0,SLSinter
  AFCMODE 7
  PRPLEVEL 0:1.000000
  NAVFREQ 0 0
  CONFIGURATION 0
  PRIMEBOOSTER 1
  CENTERTHRUST 0
  IGNITENEXT 0
  PADBIAS 1.000000
  CAMERA 0.000000 0.000000 75.000000
  TGT_HEADING 0.000000
END
SLSinter:Velcro\SLSinter
  STATUS Landed Earth
  POS -80.6745292 28.5191812
  HEADING 0.00
  ATTACHED 2:0,slsCORE
  AFCMODE 7
  PRPLEVEL 0:1.000000
  NAVFREQ 0 0
  CONFIGURATION 0
  PRIMEBOOSTER 1
  CENTERTHRUST 0
  PADBIAS 1.000000
  CAMERA 0.000000 0.000000 90.000000
  TGT_HEADING 95.000000
  SERIESBURN 0 SLSICPS 0.0000 0.0000 -48.6 0.0000 0.0000 -1.0000 0.0000 1.0000 0.0000
END
slsCORE:Velcro\SLSCore2
  STATUS Landed Earth
  POS -80.6745292 28.5191812
  HEADING 0.00
  ATTACHED 2:0,slstower
  AFCMODE 7
  PRPLEVEL 0:1.000000 1:1.000000 2:1.000000
  NAVFREQ 0 0
  CONFIGURATION 0
  PRIMEBOOSTER 1
  CENTERTHRUST 0
  PADBIAS 1.000000
  CAMERA 0.000000 0.000000 90.000000
  SLA 1 0.50 0.00 -1.00
  TGT_HEADING 95.000000
  SERIESBURN 0 SLSinter 0.0000 0.0000 0.8000 0.0000 0.0000 -1.0000 0.0000 1.0000 0.0000
END
 
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I am not sure on the sequence of the flight. So the rocket launches the booster fall off. that works. When the core fuel is deleted: Should the interstage part fly off or rocket off? Then the ICPS fires off.

When does the LAS eject?
 
From my understanding the SRB's will burn for 124 seconds, then the core stage will continue to burn for about another 8 or 9 minutes then the upper stage will separate and ignite its engine. The fairings and the launch escape tower jettison after the upper stage fires.

The constellation video kind of shows this sequence.

https://www.youtube.com/watch?v=bd-a__zQlJU
 
On on that video the interstage has thrusters. So not sure why my scenario isn't working.
In the scenario the interstage and 2nd stage are set as series burns.
 
The thrusters on the skirt or on the sides of the upper stage? There's probably some variance between this and how SLS will work because this is an Ares system, it wouldn't be going nearly as fast as SLS at the point of staging so the skirt rockets I think are necessary to ensure clearance between it, the SRB and the upper stage engine.

What shoots off the sides of the stage itself is most likely pre-burner exhaust.
 
On the interstage since it is a vessel and has a cfg. I can add thrusters. But I think the direction of the thrusters should be -z so it pushes away from the 2nd stage, right?
 
You want clearance, so yes. It's also a safety measure. If I recall correctly one of the Saturn V launches was done without first stage retro rockets, the stages didn't separate as quickly as they'd have liked, the first stage still had enough velocity to possibly hit the second stage before it lit. Now it seems standard that they use rocket assisted separation.
 
RonDVouz said:
From my understanding the SRB's will burn for 124 seconds, then the core stage will continue to burn for about another 8 or 9 minutes then the upper stage will separate and ignite its engine. The fairings and the launch escape tower jettison after the upper stage fires.

The constellation video kind of shows this sequence.

https://www.youtube.com/watch?v=bd-a__zQlJU
Click to expand...

There's actually an NSF article that gives some detail on Orion/SLS ascent.

For manned SLS flights, the ogive panels AND the launch escape tower will actually are jettisoned after booster seperation but before the iCPS separates and fires.
 
Thanks. Interesting in one photo it shows the interstage still connected to the core.
 
Isn't the interstage supposed to stay attached...?

Only on the cargo configuration (Block 2) do I see it actually separating from the core.
 
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