Project Multistage2015 - Development Thread

gattispilot · May 24, 2017

Now it works. Thanks

fred18 · May 31, 2017

jacquesmomo said:
Hello

About the "camera" option I noticed one thing (but it's not important)

With my Kourou-ELA2 crawler system, it seems that "ramp" and "camera" can not work together...

[...]

Hi jacquesmomo, I think I found the issue! the camera creation was (mistakenly) thought only for creation from zero, and there was an undefined status for the camera.

I corrected it and attached the modules to this post. Will you be so kind to give it a try?

1987VCRProductions said:
Hey fred18, I've not been following this thread as closely as I should, but when you mention docked vessels with Multistage2015, are you talking about maybe the possibility of adding docking ports to Multistage2015 vessels? Something like that would be cool for something like the manned Venus flyby that was planned for the Apollo Applications Program or for "wet workshop" space stations where the empty fuel tanks become a living area for the astronauts (as was also planned for the Venus flyby).

I am actually trying to test a "docked stages" version of multistage. It's only a test for the moment. Relevant to your idea for Venus Flyby etc. I think there are also other ways to do it, like using live payloads, or, maybe better, create the last stage as a payload and treat it like that.

1987VCRProductions said:
Also, if you do decide to add the ability to ignite the boosters in the guidance file without having to tap the [+] key, have the line be [time]=booster(x). I had forgotten that you can add multiple groups of boosters in an ini file.

The line "0=booster(1)" can ignite the first set of boosters on the ground at range zero and the line "115=booster(2)" can ignite the second set at T+115 seconds. If you want both sets of boosters to ignite at the same time, then you'd just leave the space between the parenthesis blank, i.e. 0=booster().

That's something interesting to investigate, I just want to be sure not to loose retrocompatibility with the old vinka addons: there is an option, inherited from Vinka, still active in MS2015, of BurnDelay for the boosters, directly in the .ini file, I need to be sure not to mess up with this possibility.

jacquesmomo · May 31, 2017

fred18 said:
Hi jacquesmomo, I think I found the issue! the camera creation was (mistakenly) thought only for creation from zero, and there was an undefined status for the camera.

I corrected it and attached the modules to this post. Will you be so kind to give it a try?
.

Thank you !!! :tiphat:

I just did a quick test (I'll make others again tonight) and... there is no more CTD !
But... if I make "F3" then focus "MS_Camera" .... I cannot see the rocket, only the blue sky ....:facepalm:

and it is the same for the others scn (without my crawler) : only the sky...

May be I made something wrong ?

fred18 · May 31, 2017

jacquesmomo said:
Thank you !!! :tiphat:

I just did a quick test (I'll make others again tonight) and... there is no more CTD !
But... if I make "F3" then focus "MS_Camera" .... I cannot see the rocket, only the blue sky ....:facepalm:

and it is the same for the others scn (without my crawler) : only the sky...

May be I made something wrong ?

No I think it's not up on you, it's about touchdown points in 2016 and this kind of stuff I'm working on right now to try to fix it. It's kind of messy.

If this works let's say "as I'm expecting", if you launch your rocket the camera should catch him up after some 20 seconds from lift off.

Anyway I'm working on it right now, hope to solve that soon

jacquesmomo · May 31, 2017

First, thank you for your work !!!

So you were right : after a while, I see the rocket. I had not waited long enough...

Here are the screens just when the rocket appears.
(Image 2 = same with zoom maxi)

Before that, the view is blue (sky ?) Except with D3D9 : at the beginning everything is black, then appears what I think is the Earth + the sky ....
(See the following 2 pictures):
- image 1 without D3D9
- image 2 same moment but with D3D9

The arrows show the direction of the displacement.

fred18 said:
No I think it's not up on you, it's about touchdown points in 2016 and this kind of stuff I'm working on right
now to try to fix it. It's kind of messy.

Yes, I know that the main problem (for me) with Orbiter 2016 are the touchdown points.
I had a lot of problem to make drive properly the crawler and the truck (spacecraft vessels)

fred18 said:
If this works let's say "as I'm expecting", if you launch your rocket the camera should catch him up after
some 20 seconds from lift off.

Yes !... after 150 seconds for me...

fred18 said:
Anyway I'm working on it right now, hope to solve that soon

don't worry about this.... :blackeye:

4throck · Jun 1, 2017

fred18 said:
I am actually trying to test a "docked stages" version of multistage. ...I think there are also other ways to do it, like using live payloads, or, maybe better, create the last stage as a payload and treat it like that..

I'd recommend a live payload with docked vessels, seems the simplest solution.

fred18 · Jun 1, 2017

ok, I think I've found the solution for the camera in 2016. Now it is (or it should be at least) landed upright and it follows the rocket as it climbs as it is intended to.

I'm using the knowledge gained with the new spacenetwork (which is in pause at the moment because I'm back here in multistage and time is limited) for creating landed upright vessels in Orbiter2016, and I think I should recode everything related with landed vessels (launchpad, crawler, hangar etc) with this new way, taking out some dirty tricks used in the code.

please check if the attached modules package works fine.

Note: the black areas from the ground is a D3D9 issue, not related to multistage2015. I already reported it to the D3D9 team when I discovered it again with the spacenetwork development.

Cheers

Fred

4throck · Jun 1, 2017

A way to use the live payload as a stage, for autopilot and fuel calculations would be nice!

For example, on the Atlas-Agena, the Agena works as an upper-stage and as payload.
I have it working like that , but the fuel remaining on the upper-stage is not transferred into the payload...

jacquesmomo · Jun 1, 2017

fred18 said:
ok, I think I've found the solution for the camera in 2016. Now it is (or it should be at least) landed upright and it follows the rocket as it climbs as it is intended to.

it works very well !!!! Thanks again for your awesome work !!!

fred18 said:
Note: the black areas from the ground is a D3D9 issue, not related to multistage2015. I already reported it to the D3D9 team when I discovered it again with the spacenetwork development.

Yes, I thought the same thing... not very important...

fred18 said:
I'm using the knowledge gained with the new spacenetwork (which is in pause at the moment because I'm back here in multistage and time is limited) for creating landed upright vessels in Orbiter2016, and I think I should recode everything related with landed vessels (launchpad, crawler, hangar etc) with this new way, taking out some dirty tricks used in the code.

:10sign:

gattispilot · Jun 6, 2017

Ok. I am makeing a Delta4hvy for ms2015. I get it to launch but then it explodes in space. and the first stage isn't firing.
guidance.

Code:

Multistage 2015 Automatically Generated Guidance File
Vehicle: delat4hvy
-10.000 =orbit(185.00,1850.00,-29.62,-1.00,75.70,0.00)
-5.000 =engine(0.00,110.00,5.00,0.00,0.00,0.00)
50.000 =engine(100.00,85.00,3.00,0.00,0.00,0.00)

ini

Code:

[MISC]
cog=22.500
GNC_Debug=0
Telemetry=0
Focus=0
Thrust_real_pos=0
Vertical_Angle=0.000

[TEXTURE_LIST]
TEX_1=Exhaust_atsme

[PARTICLESTREAM_1]
Name=vent
amin =0.150
amax =1.000
atmslowdown =3.000
growthrate =1.200
lifetime =4.500
lmax =0.500
lmin =0.000
srcrate =15.000
srcsize =0.400
v0 =1.000
ltype =EMISSIVE
atmsmap =ATM_FLAT
levelmap =LVL_PSQRT
tex =contrail
Srcspread=0.000

[PARTICLESTREAM_2]
NAME=mach
SRCSIZE=7.000
SRCRATE=120.000
V0=12.000
SRCSPREAD=0.000
LIFETIME=0.250
GROWTHRATE=6.000
ATMSLOWDOWN=0.000
LTYPE=EMISSIVE
LEVELMAP=LVL_PSQRT
LMIN=0.000
LMAX=4.000
ATMSMAP=ATM_FLAT
AMIN=0.600
AMAX=1.000
TEX=contrail4

[FX_VENT]
pstream=vent
off_1=(4.200,0.000,35.000)
dir_1=(1.000,0.000,0.000)
time_fin_1=-15.000
off_2=(0.000,4.200,15.000)
dir_2=(0.000,1.000,0.000)
time_fin_2=-25.000

[FX_MACH]
pstream=mach
mach_min=0.900
mach_max=1.100
off_1=(0.000,0.000,70.000)
off_2=(6.777,0.000,20.000)
off_3=(-6.777,0.000,20.000)
dir=(0.000,0.000,-1.000)

[BOOSTER_1]
N=1
MeshName=DELTALEFTBOOSTER
Height=50.000
Diameter=5.1
EmptyMass=26400 
FuelMass=202000 
Thrust=3140000
angle=3.142
off=(5.1,0.000,4.7500)
BurnTime=328
eng_1=(0.000,0.000,-18.000)
eng_diameter=1
ENG_PSTREAM1=exhaust
Speed=(15.000,0.000,0.000)
Rot_speed=(0.000,-0.400,0.000)
Eng_tex=
Eng_pstream2=contrail

[BOOSTER_2]
N=1
MeshName=DELTARIGHTBOOSTER
Diameter=5.1
EmptyMass=26400 
FuelMass=202000 
Thrust=3140000
angle=3.142
off=(-5.1,0.000,4.75000)
BurnTime=328
eng_1=(0.000,0.000,-18.000)
eng_diameter=1
ENG_PSTREAM1=exhaust
Speed=(15.000,0.000,0.000)
Rot_speed=(0.000,-0.400,0.000)
Eng_tex=
Eng_pstream2=contrail

[STAGE_1]
Height=43.03
Diameter=5.1
EmptyMass=26400 
FuelMass=202000 
Thrust=3140000
BurnTime=367
off=(0.000,0.000,4.700)
MeshName=DELTA4CBC
eng_1=(0,0-17)
eng_diameter=1
PITCHTHRUST=56774532.400 
YAWTHRUST=56774532.400 
speed=(0.000,0.000,-18.000)
ENG_PSTREAM1=
battery=1.500
Reignitable=0
Eng_tex=
Eng_pstream2=
Eng_dir=(0.000,0.000,1.000)
Module=Stage
Rot_speed=(0.000,0.000,0.000)

[SEPARATION_12]
MeshName="DELTAinterface"
SEPARATION_DELAY=15.0
Diameter=5.1
Height=6.75
EmptyMass=1000 
off=(0.,0.,31.55)

[STAGE_2]
Height=43.03
Diameter=5.1
EmptyMass=3490 
FuelMass=27220 
Thrust=10898383.375
BurnTime=449.000
off=(0.000,0.000,34.4)
MeshName=SLS_2016/SLS_ICPS
eng_1=(0,0,-4.5)
eng_diameter=1
PITCHTHRUST=56774532.400 
YAWTHRUST=56774532.400 
speed=(0.000,0.000,-19.000)
ENG_PSTREAM1=
battery=1.500
Reignitable=0
Eng_tex=
Eng_pstream2=
Eng_dir=(0.000,0.000,1.000)
Module=Stage
Rot_speed=(0.000,0.000,0.000)

Code:

000000.000: DELTA4: Guidance File present: Config\Multistage2015\Guidance\DELTA4HVY_GNC.txt
000000.000: DELTA4: Orbit Call Found! Targets: Apogee:1850000.0 Perigee:185000.0 Inclination:-29.6 Mode:-1.0 GT initial Pitch: 75.7 Abside:185000.0
000000.000: DELTA4: Config File: C:\Orbiter2016\Config\Multistage2015\DELTA4HVY1.ini
000000.000: DELTA4: Number of Interstages in the ini file: 1
000000.000: DELTA4: Number of stages in the ini file: 2
000000.000: DELTA4: Number of boosters group in the ini file: 2
000000.000: DELTA4: Number of Payloads in the ini file: 0
000000.000: DELTA4: Texture n.1 Loaded Exhaust_atsme
000000.000: DELTA4: booster n. 1 Tank Added: 202000.000 kg
000000.000: DELTA4: booster n. 2 Tank Added: 202000.000 kg
000000.000: DELTA4: Stage n. 2 Tank Added: 27220.000 kg
000000.000: DELTA4: Stage n. 1 Tank Added: 202000.000 kg
000000.000: DELTA4: Stage n.1 Engine Exhaust Stream Added:  to engine n.1
000000.000: DELTA4: Stage n.1 Engine Exhaust Stream Added:  to engine n.1
000000.000: DELTA4: Stage n. 1 Engines Exhaust Added--> number of engines: 1 , diameter: 1.000, position x: 0.000 y: 0.000 z: 0.000
000000.000: DELTA4: Booster Group n.1 Engine Exhaust Stream Added: exhaust to engine n.1
000000.000: DELTA4: Booster Group n.1 Engine Exhaust Stream Added: contrail to engine n.1
000000.000: DELTA4: Booster Engines Exhaust Added--> Booster Group: 1 number of engines: 1 , diameter: 1.000, position x: 5.092 y: 0.280 z: -17.950
000000.000: DELTA4: Booster Group n.2 Engine Exhaust Stream Added: exhaust to engine n.1
000000.000: DELTA4: Booster Group n.2 Engine Exhaust Stream Added: contrail to engine n.1
000000.000: DELTA4: Booster Engines Exhaust Added--> Booster Group: 2 number of engines: 1 , diameter: 1.000, position x: -5.092 y: -0.280 z: -17.950
000000.000: DELTA4: Stage n.1 Mesh Preloaded: DELTA4CBC
000000.000: DELTA4: Stage n.1 Mesh Added Mesh: DELTA4CBC @ x:0.000 y:0.000 z:0.000
000000.000: DELTA4: Stage n.2 Mesh Preloaded: SLS_2016/SLS_ICPS
000000.000: DELTA4: Stage n.2 Mesh Added Mesh: SLS_2016/SLS_ICPS @ x:0.000 y:0.000 z:29.700
000000.000: DELTA4: Interstage Mesh Preloaded for Stage 2
000000.000: DELTA4: Interstage Mesh Added: DELTAinterface @ x:0.000 y:0.000 z:26.850
000000.000: DELTA4: Booster Mesh Preloaded: DELTALEFTBOOSTER_1
000000.000: DELTA4: Booster Mesh Added Mesh: DELTALEFTBOOSTER_1 @ x:5.092 y:0.280 z:0.050
000000.000: DELTA4: Booster Mesh Preloaded: DELTARIGHTBOOSTER_1
000000.000: DELTA4: Booster Mesh Added Mesh: DELTARIGHTBOOSTER_1 @ x:-5.092 y:-0.280 z:0.050
000000.000: Load State Terminated
000000.000: Module EmptyModule.dll ....... [Build 161006, API 160828]
000000.000: Module MS_Camera.dll ......... [Build 161006, API 160828]
000000.000: MS_Camera: Target Vessel Loaded->DELTA4
000000.000: Finished initialising status
000000.000: Finished initialising camera
000000.000: Finished setting up render state
000000.000: Post Creation Started
000000.000: DELTA4: Gravity Turn Initial Pitch by user: 75.700 Calculated:89.000
000000.000: RESET PEG
000000.000: DELTA4 Complex Flight-> Stage 1 Engine 1 Amplitude 0.012 phase 0.471 frequency 72.000
000000.000: DELTA4 Complex Flight-> Stage 2 Engine 1 Amplitude 0.011 phase 1.536 frequency 46.000
000000.000: DELTA4 Complex Flight-> Booster 1 Engine 1 Amplitude 0.006 phase 3.124 frequency 50.000
000000.000: DELTA4 Complex Flight-> Booster 2 Engine 1 Amplitude 0.014 phase 1.518 frequency 81.000
000000.000: DELTA4: Planet Reference Pressure = 101325.0 Pa  Atmosphere Altitude Limit:2500.0 km
000000.000: Post Creation Terminated
000000.000: Finished initialising panels
000012.245: DELTA4 Booster n: 1 ignited @0.0
000012.245: DELTA4 Booster n: 2 ignited @0.0
000012.273: Detached from Launchpad
000012.273: LaunchPad Deleted from Scenery
000012.877: DELTA4 Stage n: 1 ignited @0.6
000136.651: About To Explode
000146.565: **** Closing simulation session

Code:

BEGIN_SHIPS
DELTA4:Multistage2015
  STATUS Landed Earth
  POS -80.6208600 28.6271940
  HEADING 0.00
  ATTACHED 0:0,MS_LaunchPad_DELTA4
  AFCMODE 7
  PRPLEVEL 0:1.000000 1:1.000000 2:1.000000 3:1.000000
  NAVFREQ 0 0 0 0
  XPDR 0
  CONFIG_FILE Config\Multistage2015\DELTA4HVY1.ini
  GUIDANCE_FILE Config\Multistage2015\Guidance\DELTA4HVY_GNC.txt
  CONFIGURATION 0
  COMPLEX 
  CURRENT_BOOSTER 1
  CURRENT_STAGE 1
  CURRENT_INTERSTAGE 1
  MET -10.000
  BATTERY 5400.000000
  GROWING_PARTICLES 
  TELEMETRY_FILE Config\Multistage2015\Telemetry\SLS_57310.61_TLM.txt
  PEG_PITCH_LIMIT 35.000
  PEG_MC_INTERVAL 0.100
  RAMP 
END
MS_LaunchPad_DELTA4:EmptyModule
  STATUS Landed Earth
  POS -80.6208600 28.6271940
  HEADING 0.00
  AFCMODE 7
  NAVFREQ 0 0
END
MS_Camera:MS_Camera
  STATUS Landed Earth
  POS -80.5908600 28.6371940
  HEADING 0.00
  AFCMODE 7
  NAVFREQ 0 0
  TARGET DELTA4
END
END_SHIPS

fred18 · Jun 6, 2017

It explodes because you are flying with complex flight active, so probably the aoa gets too high. Try to refine your ascent or deactivate complex flight.

First stage ignites, but you don t see it because you missed a comma in eng_1, it should be 0,0,-17

gattispilot · Jun 6, 2017

Thanks. Now it climbs to around 6000M and nose down. Turned complex flight off.

I think I have the thrust and weight correct?

Code:

[STAGE_1]
Height=43.03
Diameter=5.1
EmptyMass=26400 
FuelMass=202000 
Thrust=3140000
BurnTime=367
off=(0.000,0.000,4.700)
MeshName=DELTA4CBC
eng_1=(0,0,-18)
eng_diameter=1
PITCHTHRUST=14193633.100 
YAWTHRUST=14193633.100 
speed=(0.000,0.000,-10.000)
ENG_PSTREAM1=
battery=1.500
Reignitable=1
Eng_tex=
Eng_pstream2=contrail
Eng_dir=(0.000,0.000,1.000)
Module=Stage
Rot_speed=(0.000,0.000,0.000)

based off these:
https://en.wikipedia.org/wiki/Delta_IV and:
http://www.spaceflight101.net/delta-iv-heavy.html

fred18 · Jun 6, 2017

from your log file:

Code:

000000.000: DELTA4: Gravity Turn Initial Pitch by user: 75.700 Calculated:89.000

The initial pitch calculated by the automatic system was 89 degrees, while in your guidance you set:

Code:

-10.000 =orbit(185.00,1850.00,-29.62,-1.00,[B]75.70[/B],0.00)

Which apparently is way too low.

Try to put 89.3 there or something like that.

PS: this is the reason why I always make my addons log a lot of information, it's much easier to understand what's going on!

gattispilot · Jun 6, 2017

Thanks. Got into orbit but 2nd stage never ignited?

Code:

000000.000: Finished initialising status
000000.000: Finished initialising camera
000000.000: Finished setting up render state
000000.000: Post Creation Started
000000.000: DELTA4: Gravity Turn Initial Pitch by user: 89.300 Calculated:89.000
000000.000: RESET PEG
000000.000: DELTA4 Complex Flight-> Stage 1 Engine 1 Amplitude 0.007 phase 2.007 frequency 81.000
000000.000: DELTA4 Complex Flight-> Stage 2 Engine 1 Amplitude 0.012 phase 2.025 frequency 53.000
000000.000: DELTA4 Complex Flight-> Booster 1 Engine 1 Amplitude 0.003 phase 0.419 frequency 74.000
000000.000: DELTA4 Complex Flight-> Booster 2 Engine 1 Amplitude 0.008 phase 2.094 frequency 49.000
000000.000: DELTA4: Planet Reference Pressure = 101325.0 Pa  Atmosphere Altitude Limit:2500.0 km
000000.000: Post Creation Terminated
000000.000: Finished initialising panels
000011.006: DELTA4 Booster n: 1 ignited @0.0
000011.006: DELTA4 Booster n: 2 ignited @0.0
000011.028: Detached from Launchpad
000011.028: LaunchPad Deleted from Scenery
000011.649: DELTA4 Stage n: 1 ignited @0.6
000147.284: RESET PEG
000173.175: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_1 @202.386
000173.175: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_2 @202.386
000173.175: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_3 @202.386
000174.450: DELTA4: Les jettisoned name: SLS_2016\TALONLES @215.131
000198.146: DELTA4: Booster n.1 jettisoned name: DELTALEFTBOOSTER_1 @327.970
000198.255: DELTA4: Booster n.2 jettisoned name: DELTARIGHTBOOSTER_1 @328.080
000236.614: RESET PEG
000236.748: RESET PEG
000236.848: RESET PEG
000236.979: RESET PEG
000237.082: RESET PEG
000237.214: RESET PEG
000237.313: RESET PEG
000237.444: RESET PEG
000237.571: RESET PEG
000237.698: RESET PEG
000237.799: RESET PEG
000237.930: RESET PEG
000238.057: RESET PEG
000238.183: RESET PEG
000238.313: RESET PEG
000238.416: RESET PEG
000238.547: RESET PEG
000238.675: RESET PEG
000238.799: DELTA4: Stage n.1 jettisoned name: DELTA4CBC @368.624
000238.799: DELTA4: Stage n.2 Engine Exhaust Stream Added:  to engine n.1
000238.799: DELTA4: Stage n.2 Engine Exhaust Stream Added:  to engine n.1
000238.799: DELTA4: Stage n. 2 Engines Exhaust Added--> number of engines: 1 , diameter: 1.000, position x: 0.000 y: 0.000 z: -4.500
000253.814: DELTA4: Interstage of stage 2 jettisoned name: DELTAinterface @383.639
000305.575: **** Closing simulation session

fred18 · Jun 6, 2017

well if you made it to orbit maybe it was not needed?

gattispilot · Jun 6, 2017

Well was odd At 200 I was at 0 pitch. The Interstage came off and the 2nd stage came off carrying the payload. But I started to pitch down.

Maybe I don't need it?

fred18 · Jun 6, 2017

can you post a screenshot at cutoff? either way it seems you don't need it but I can't tell...

gattispilot · Jun 6, 2017

Sure. This is right after sep

Code:

000000.000: Post Creation Terminated
000000.000: Finished initialising panels
000011.431: DELTA4 Booster n: 1 ignited @0.0
000011.431: DELTA4 Booster n: 2 ignited @0.0
000011.458: Detached from Launchpad
000011.458: LaunchPad Deleted from Scenery
000012.054: DELTA4 Stage n: 1 ignited @0.6
000072.120: RESET PEG
000104.968: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_1 @202.642
000104.968: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_2 @202.642
000104.968: DELTA4: Fairing jettisoned: name SLS_2016\SLSTALONFAIR_3 @202.642
000106.294: DELTA4: Les jettisoned name: SLS_2016\TALONLES @215.896
000207.626: DELTA4: Booster n.1 jettisoned name: DELTALEFTBOOSTER_1 @327.094
000208.538: DELTA4: Booster n.2 jettisoned name: DELTARIGHTBOOSTER_1 @328.006
000246.816: RESET PEG
000246.950: RESET PEG
000247.052: RESET PEG
000247.151: RESET PEG
000247.288: RESET PEG
000247.421: RESET PEG
000247.551: RESET PEG
000247.683: RESET PEG
000247.784: RESET PEG
000247.916: RESET PEG
000248.048: RESET PEG
000248.179: RESET PEG
000248.306: RESET PEG
000248.434: RESET PEG
000248.558: RESET PEG
000248.705: RESET PEG
000248.821: RESET PEG
000248.930: RESET PEG
000249.064: RESET PEG
000249.166: DELTA4: Stage n.1 jettisoned name: DELTA4CBC @368.634
000249.166: DELTA4: Stage n.2 Engine Exhaust Stream Added:  to engine n.1
000249.166: DELTA4: Stage n.2 Engine Exhaust Stream Added:  to engine n.1
000249.166: DELTA4: Stage n. 2 Engines Exhaust Added--> number of engines: 1 , diameter: 1.000, position x: 0.000 y: 0.000 z: -4.500
000264.174: DELTA4: Interstage of stage 2 jettisoned name: DELTAinterface @383.642
000336.624: **** Closing simulation session

fred18 · Jun 7, 2017

Seems like guidance is not converging. It could be because in the second stage thrust you put:

Code:

Thrust=10898383.375

which seems a crazy value for this and maybe it's messing up guidance calculations, it should be (from the websites you passed me) 110000

gattispilot · Jun 7, 2017

I did this:

Code:

[STAGE_2]
Height=43.03
Diameter=5.1
EmptyMass=3490 
FuelMass=27220 
Thrust=110000
BurnTime=449.000
off=(0.000,0.000,34.4)
MeshName=SLS_2016/SLS_ICPS
eng_1=(0,0,-4.5)
eng_diameter=1
PITCHTHRUST=56774532.400 
YAWTHRUST=56774532.400 
speed=(0.000,0.000,-19.000)
ENG_PSTREAM1=
battery=1.500
Reignitable=1
Eng_tex=
Eng_pstream2=
Eng_dir=(0.000,0.000,1.000)
Module=Stage
Rot_speed=(0.000,0.000,0.000)

GNC:

Code:

Multistage 2015 Automatically Generated Guidance File
Vehicle: delta4hvy
-10.000 =orbit(200.00,200.00,-29.59,1.00,89.3,0.00)
-5.000 =engine(0.00,110.00,5.00,0.00,0.00,0.00)
45.000 =fairing(75.00,0.00,0.00,0.00,0.00,0.00)
50.000 =les(85.00,0.00,0.00,0.00,0.00,0.00)
50.000 =engine(100.00,85.00,3.00,0.00,0.00,0.00)
80.000 =engine(85.00,101.00,3.00,0.00,0.00,0.00)

Project Multistage2015 - Development Thread

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