Question Learning how to make payloads

[Gerdih]

Hi I am learning how to write the correct files in order to launch a payload with a launcher.

I have started with the Neptune Launcher and I have inserted in orbit the ATV. But I have questions. If you can me show any tutorial would be helpful.


First, when the ATV is jettisoned, it have no fuel. I dont know how to put fuel to the vehicle prior to launch the scenario.

Second, Is there someway to know the correct position of the payload without launch the scenario to see if the payload is in the correct place?
Im talking about the "off=(0,0,53)" parameters.

Third, is important towrite the diameter and height?

Fourth, I have seen images where the modules section is spacecraft3: Module="spacecraft/spacecraft3" When I have to put this?

Finally I have tried to put the CTV as a payload. but I dont find the mesh. It's possible that a ship needs more than one mesh? then how I can know what meshes? and how to put them in the file?

Thanks

 

[ky]

Is the ATV a spacecraft 3 vessel?If it is,then you can convert it into a .dll so that you can edit it in scenario editor.

 

[garyw]

I have started with the Neptune Launcher and I have inserted in orbit the ATV. But I have questions. If you can me show any tutorial would be helpful.
First, when the ATV is jettisoned, it have no fuel. I dont know how to put fuel to the vehicle prior to launch the scenario.

If you could post the ini file & scenario that you are attempting to modify someone will be able to show and explain how to do it and what each line means.

Is the ATV a spacecraft 3 vessel?If it is,then you can convert it into a .dll so that you can edit it in scenario editor.

Or rather than editing it the scenario & configs could be setup correctly to begin with. using scenario editor always feels like a cheat to me.

 

[ky]

Or rather than editing it the scenario & configs could be setup correctly to begin with. using scenario editor always feels like a cheat to me.

It sort of is,but he's saying there is no fuel in the ATV when it seperates,so he could just use scenario editor for the fuel,if he can't figure out how to configure it in the Scenario file.

 

[Gerdih]

Yes ky I use the scenario editor to put the fuel but I would like to know how to put the fuel before to launch the scenario.

Here are the lines of the payload:

[PAYLOAD_1]
off=(0,0,53)
speed=(0,0,1.0)
rot_speed=(0,0,0)
MeshName="ARD-CTV/ATV"
Module="ATV"
name="ATV-12"
Diameter=4
Height=8
Mass=17734,69388

And the lines of the scenario related to the launcher:

BEGIN_SHIPS
Nep-1_ATV:Multistage\Multistage2
STATUS Landed Earth
POS -80.6312150 28.5419000
HEADING 90.00
AFCMODE 7
PRPLEVEL 0:1.000000
FUEL 1
NAVFREQ 0 0
CONFIG_FILE Config\Nep-1\Nep-1_ATV.ini
GUIDANCE_FILE Config\Nep-1\guidance_nep-1.txt
CONFIGURATION 0
STAGE_STATE 2
STAGE_IGNITION_TIME 0.000000
CURRENT_BOOSTER 1
CURRENT_STAGE 1
CURRENT_INTERSTAGE 1
CURRENT_PAYLOAD 1
FAIRING 1
GNC_RUN 1
GNC_PROGRAM 0
GNC_STEP 1
GNC_MET -78.00
GNC_AUTO_JETTISON 1.000000

 

[Evil_Onyx]

It sort of is,but he's saying there is no fuel in the ATV when it seperates,so he could just use scenario editor for the fuel,if he can't figure out how to configure it in the Scenario file.

If i remember correctly the ATV has a button to fix the stage bug it has (no fuel after separation)

Im assuming you are useing Well & NoMatter 's ATV and CTV
http://www.orbiterfrancophone.com/index.php?disp=addons&id=1

:edit:

from the ATV readme....
"CTRL+7 Clear Multistage2 fuelbug (1x) & erase UMMU message"

 

[Gerdih]

If i remember correctly the ATV has a button to fix the stage bug it has (no fuel after separation)


:Edit:

from the ATV readme....
"CTRL+7 Clear Multistage2 fuelbug (1x) & erase UMMU message"

Then it's not an error of editing the file but a bug of the ATV itself?

 

[Jobyh]

I'm pretty sure the button to fill it with fuel is ctrl 7.
If you look at the documentation though I know it tells you the button.
Its a bug with the ATV.

 

[Wishbone]

To set the record straight, this is a Multistage.dll bug, not much to do with ATV per se. (of course, using "default propellant resource" could be a fix for ATV authors, but there's nothing in the Orbiter API that mandates this kludge).

 

[Gerdih]

I have made a JupiterV with a RNS as a payload. But I have the same problem with the fuel as the ATV (The RNS have no fuel) what I have to do?

Can you tell me something about the other doubts I wrote?

Thanks!