Vessel New Glenn addon inspired by BrianJ's Falcon 9

[barrygolden]

It did have a blue flame after launch

 

[gattispilot]

New meshes and textures. It does lift off but I think the guidance file might be wrong. She takes off but then heads back to Earth.

And added an video You see she launches. It needs long exhaust. but climbs and and levels out and dives down

 

[BrianJ]

Good work
I'll give it a spin asap!
Cheers,
Brian

 

[gattispilot]

Trying to get a new exhaust, I had a typo so the blue exhaust didn't show. But it can't make it to orbit?

I wonder if too heavy? I have it at a orbit of 200x 200

 

[BrianJ]

Hi,
that pic of exhaust looks better
I'm just working on a guidance file for it. Using an explicit pitch profile to override MS2015 autopilot until staging (MS2015 autopilot doesn't "know" staging happens early). Matches up pretty well with launch video. No problem with small payload but getting 45000kg to LEO is proving difficult. The upper stage just doesn't have enough power unless you offload a bunch of fuel. I'll put up what I got later.
Cheers,
Brian

 

[gattispilot]

This is what I have for the blue exhaust:
[MISC]
cog=22.5
GNC_Debug=0
Telemetry=0
Focus=1
Thrust_real_pos=0
Vertical_Angle=0.000

[TEXTURE_LIST]
TEX_1=Exhaust_atsme
TEX_2=NEWGLENN\Exhaust_blue
TEX_3=NEWGLENN\Exhaust_blue


[FX_LAUNCH]
N=2
Height=10.000
Angle=90.000
Distance=0.000
CutoffAltitude=800.000
Pstream1=launchfx
Pstream2=launchfx2

[FX_VENT]
pstream=vent
off_1=(4.200,-1.000,30.000)
dir_1=(1.000,5.000,0.000)
time_fin_1=-5.000
off_2=(1.000,-4.200,15.000)
dir_2=(5.000,1.000,0.000)
time_fin_2=-5.000

[FX_MACH]
pstream=mach
mach_min=0.900
mach_max=1.300
off_1=(-1.000,0.000,18.000)
off_2=(1.000,0.000,18.000)
off_3=(-5.000,0.000,5.000)
dir=(0.000,0.000,-1.000)
Off_4=(5.000,0.000,5.000)
Off_5=(0.000,0.000,30.000)

[PARTICLESTREAM_1]
Name=SRB_exhaust
SRCSIZE=3
SRCRATE=12
V0=50
SRCSPREAD=0.05
LIFETIME=15.5
GROWTHRATE=3
ATMSLOWDOWN=0.3
LTYPE=DIFFUSE
LEVELMAP=LVL_PSQRT
LMIN=0
LMAX=1
ATMSMAP=ATM_PLOG
AMIN=1e-6
AMAX=1
Tex=SLS_2016\SLS_SRB_contrail
GROWFACTOR_RATE=6
GROWFACTOR_SIZE=0.2

[STAGE_1]
Height=53.6
Diameter=7
EmptyMass=100000
FuelMass=1180000
Thrust=18991000
BurnTime=211
off=(0.000,0.000,4.700)
Linear_isp=3394
MeshName=NEWGLENN\NEWGLENN1STAGE
eng_1=(0,0,-28.1)
eng_2=(2.300,0,-28.1)
eng_3=(-2.300,0,-28.1)
eng_4=(1.2,2,-28.1)
eng_5=(-1.2,2,-28.1)
eng_6=(-1.20,2,-28.1)
eng_7=(1.2,2,-28.1)
eng_diameter=2.400
PITCHTHRUST=14193633.100
YAWTHRUST=14193633.100
speed=(0.000,0.000,-2.000)
ENG_PSTREAM1=SRB_exhaust
battery=1.500
Reignitable=1
Eng_tex=NEWGLENN\Exhaust_blue
Eng_pstream2=Glenncontrail
Eng_dir=(0.000,0.000,1.000)
Module=Stage
Rot_speed=(0.000,0.000,0.000)

 

[BrianJ]

Hi,
yipes! My old PC can't handle that much exhaust fx at launch, so I've left the old settings, leave it to you to update them if required.

I attach a "brianj_newglenn_test.zip" below with my current .ini and guidance .txt files, and a couple of scenarios for launching a 1200kg payload or 45000kg payload. (requires the NEWGLENNTEST1.zip posted above)

The .ini and guidance files are in Config/Vessels/NewGlennTest/ folder.
Scenarios in Scenarios/NewGlennTest/ folder.

The only difference between the .ini files is the payload mass.
The guidance files only differ by the final constant pitch angle of the booster at MECO.

Here are the mass/thrust/burntime values:

[STAGE_1]
Height=53.6
Diameter=7
EmptyMass=120000
FuelMass=1180000
Thrust=18991000
BurnTime=206
PITCHTHRUST=900000
YAWTHRUST=900000

[STAGE_2]
Diameter=7.000
Height=13.700
EmptyMass=20000
FuelMass=235000
Thrust=1540000
BurnTime=666

[FAIRING]
Diameter=7.000
Height=18
EMPTYMASS=2500

(yes, I made the booster a little heavier!)

For the 45000kg launch I had to offload 35000kg of fuel from the upper stage - it just doesn't seem to have the strength to push the extra mass into orbit before it falls back into the atmosphere. If you have "Wind Effects" turned off, it should make it to orbit with just fumes in the tank. With "Wind Effects" enabled its just a couple of seconds burn time short.

No trouble getting the 1200kg payload into orbit with plenty dV to spare

The guidance files have an explicit pitch sequence for the booster, then hands back to the MS2015 autopilot at upper stage ingnition. Also includes a 90%->100% throttle profile for the first half of the booster burn to approximate changing ISP (burn time adjusted in proportion).
Booster MECO at T+190s, staging at T+193s. Leaves ~112000kg in the booster tank.

Anyway, I've already had fun with this, and it should be good for going to Mars
I better get busy with those orbiters.
Thanks @gattispilot
BrianJ

 

[gattispilot]

Thanks so much. I think the Orbital Reef would go up on this.

 

[gattispilot]

I am trying to convert the code. I got her to be on base for launch. But trying to figure out the auto pilot. She count downs but no thrust? She has fuel.

NEWGLENN:NEWGLENN2
STATUS Landed Earth
POS -80.6758980 28.5227620
HEADING 155.08
ALT 27.053
AROT 151.156 -8.184 -150.597
AFCMODE 7
PRPLEVEL 0:1.000000 1:1.000000 2:1.000000
NAVFREQ 0 0
FAIRS 0
SOST 0 1 0 0 0 0 0
SOPR 0.4978161 180000.0 200000.0 0.0 135000.0 NULL 1.5708
LOTM 15 0 0 3 0.0023
NOZL 0.0000 0
END

 

[BrianJ]

I am trying to convert the code.

Brave man!

I think its the scenario Lift Off TiMer (LOTM) status 3 thats at fault.

LOTM 15 0 0 3 0.0023

0 = Off
1 = Running
2 = Less than 10s to liftoff
3 = Finished

I think you need to change it to 2 in your scenario (less than 10s before liftoff)

Here's a tip: for launch scenarios you can delete all the custom parameters FAIRS, SOST, SOPR, LOTM, NOZL
They will then be reset to defaults, and you can re-input your launch info into the launch control panel, then save as your new launch scenario.

Good luck,
Brian

 

[gattispilot]

So this scn is about 5 minutes before launch. As it counts down the -10 come on and it just sits there no engine thrust?

NEWGLENN:NEWGLENN2
STATUS Landed Earth
POS -80.6758980 28.5227620
HEADING 155.08
ALT 27.053
AROT 151.156 -8.184 -150.597
AFCMODE 7
PRPLEVEL 0:0.892649 1:0.999692
NAVFREQ 0 0
LOTM 15 0 0 1 0.0000
END

WAtching the code. It goes to the Do Ascent. i would think the timer value would increase. but it doesnt
if (tu_sw == 1)
{
sprintf(oapiDebugString(), "timer %LF", timer);
if (timer == 0)
timer = timer + step_time;
if (timer > 10)
{
englev = 1;
timer = 10;
}
else englev = 0;
}

 

[gattispilot]

This is what I have so far. It might be user error on why the engines do not ignite.
Basically all I need is change mesh names and offset and masses.
I think the big differences are the New Glenn fins don't closed. ( always extended). number of thruster,....

 

[BrianJ]

This is what I have so far. It might be user error on why the engines do not ignite.
Basically all I need is change mesh names and offset and masses.
I think the big differences are the New Glenn fins don't closed. ( always extended). number of thruster,....

Launch autopilot not working for me.
The T-10 timer (last figure in the LOTM scenario line) stops after one frame, so you need to look for whats causing that.
Can fire the engine manually but thrust much too low to get off the pad.
Good luck,
Brian

P.S. I got the EscaPADE orbiters ready to go.
Interestingly there is no good opportunity to go direct to Mars until Oct 2026.
If they launch before then they can either go via Venus flyby (might already be too late for that anyway) or go via Earth-Sun L2, which has been mentioned. I'm going to give the L2 route a try

 

[gattispilot]

Thanks. she launches now
I had to adjust this:
if (GetAltitude(ALTMODE_GROUND) > 10 && ap_function == 0)

the falcon was set at 70

not sure what the thrust0 and thrust1,.... need to be

Again maybe user error. But I focused on the first stage.
should it have fuel?


So it looks like the launch uses all the fuel so very little for the 1st stage??

 

[BrianJ]

not sure what the thrust0 and thrust1,.... need to be

I think the following are redundant, you can delete them.
STG1MAINTH1
STG2MAINTH0

Again maybe user error. But I focused on the first stage.
should it have fuel?

Depends on what fuel reserve you set at launch (on the control panel).
The MS2015 version leaves 112000kg in the 1st stage, you could try that.

You'll be needing to change the initial pitch for the gravity turn after launch. Look for "initial_pitch" in the code (iirc)
I imagine it'll be steeper and later.

Good luck,
Brian

 

[gattispilot]

tHANKS. It seems the max I got enter was 11200

double initial_pitch = RAD * (77.0 + (6 * ((ap_tgt - 125000) * 0.00001))); //77.5, 5* so steeper so rather than 77 make it 80?

I got the stage to separate but when I landed it fell over and blew up. I need to look at td points?

 

[BrianJ]

tHANKS. It seems the max I got enter was 11200

There are restrictions on max fuel reserve. You'll need to increase them.
Look for "fuel_reserve" and SetRF(...) section. Take out the apogee/fuel check in SetRF(..)

double initial_pitch = RAD * (77.0 + (6 * ((ap_tgt - 125000) * 0.00001))); //77.5, 5* so steeper so rather than 77 make it 80?

Guidance kicks in at 30km alt (iirc) so if it pitches down, youre too steep - pitches up youre too shallow. Experiment.

I got the stage to separate but when I landed it fell over and blew up. I need to look at td points?

Yes.

 

[gattispilot]

Thanks. on the target could it be a launch pad at Cape Canaveral?

 

[gattispilot]

This is the latest I have. Lots of things to do.

@Jeremyxxx did you try the Ms2015

 

[Jeremyxxx]

This is the latest I have. Lots of things to do.

@Jeremyxxx did you try the Ms2015

Not yet, I have yet to get back on ORBITER,