Problem Problems in Shuttle Fleet Tutorial: Out of Fuel

[Capt. Windh]

Hi.

I´m trying to fly a mission to the ISS and back with Shuttle Fleet 4.2 using the Shuttle Tutorial (for use with Shuttle Fleet) by José Pablo Luna Sánchez.


After MECO it says this in the manual: "Select Guidance & Control MFD (the one
that reads “RShift 2”) after MECO and ET SEP."

The problem is that I do not have "Guidance and Control MFD"... And it doesn´t even seem to exist anymore.

Now, I know how to circulize the orbit manually, but I wonder if there will be problems later on in the mission, because of this absence of G&C MFD.

EDIT: After following the instructions below I got the G&C up and working good.

But I now have a problem with fuel at Rendevouz. After Correction burn 2 I run out of fuel.

Any help much appreciated.

/Johan

 

[Kveldulf]

I'm pretty sure its included with either the Shuttle Fleet Expansion pack, or the ISS Fleet expansion (I think those are the addon names anyway). Just unzip them to a folder on your desktop, and take the .dll from the folder, and put it into your Orbiter Installation.

 

[Capt. Windh]

Hi Kveldulf.

But I do have both the Expansion pack and ISS Fleet installed...


Hmmm..

 

[MJR]

Did you activate it in the modules tab?

 

[David413]

If you have installed the Expansion pack, then under modules activate the module called "STSGuidanceMFD". Don't activate the "SoyuzGuidanceMFD" at the same time, they will conflict with each other, the STS is for shuttle use, and the Soyuz is for use with the Soyuz and Progress models that come bundled with the ISS fleet. Make sure that your scenario file for the shuttle includes the line "OMS" as that will correct the OMS engine offsets (13.8 degrees) so that the guidance will assume a thrust vector directly through the cg of the shuttle. That's the MFD you are looking for.

Dave

 

[Capt. Windh]

If you have installed the Expansion pack, then under modules activate the module called "STSGuidanceMFD". Don't activate the "SoyuzGuidanceMFD" at the same time, they will conflict with each other, the STS is for shuttle use, and the Soyuz is for use with the Soyuz and Progress models that come bundled with the ISS fleet. Make sure that your scenario file for the shuttle includes the line "OMS" as that will correct the OMS engine offsets (13.8 degrees) so that the guidance will assume a thrust vector directly through the cg of the shuttle. That's the MFD you are looking for.

Dave

Hi Dave.

Ooops.. Looks like they were both active... Thank you. Again... :blush:


In the scn.-file for the selected flight it reads:

STS-114:Shuttle
STATUS Landed Earth
POS -80.6207899 28.6273195 ;LC-39B
HEADING 0.00
PRPLEVEL 0:1.000 1:1.000 2:1.000
NAVFREQ 0 0
CONFIGURATION 0
OV- 103
RMSARM
ODS
OBSS
RENDER
ARM_SEQ1 0.5468 0.3240 0.3153 0.1258 0.4342 0.5000
ARM_SEQ2 0.7315 0.5539 0.7881 0.2691 0.4943 0.5887
ARM1SET
ARM2SET
CARGODOOR 0 0.0000
KUBAND 0 0.0000
PRADIATOR 0 0.0000
SRADIATOR 0 0.0000
GEAR 0 0.0000
PAYLOAD_MASS 0.0000
OMS
CALLOUT
TGT_HEADING 42.000

And the OMS is in there.. So, if I start my entire ISS-mission with this scenario everything should be alright, correct?


//Johan

---------- Post added at 09:50 PM ---------- Previous post was at 03:32 PM ----------

Well, everything went fine up until course correction and rendevouz.

All fuel was used during the CC1...


Any ideas on what have might gone wrong?

 

[MJR]

Did you fast forward or have a sufficient fuel amount left? Tell more please.

 

[Capt. Windh]

Did you fast forward or have a sufficient fuel amount left? Tell more please.

Most of the fuel is used during TI.

it looks like this:

I used fast forward (100x) during the plane alignment, after the burn. (takes a LOT of time)

and 10x during the most part of TI.

 

[MJR]

On the most part, don't fast forward and at least get all your orbital parameters in a reasonable distance so the AP won't use all your fuel.

 

[Capt. Windh]

On the most part, don't fast forward and at least get all your orbital parameters in a reasonable distance so the AP won't use all your fuel.

You mean during burns?

Because the Plane Alignment would take a day or so.


Another Q: how much fuel is typically left after docking?

 

[Capt. Windh]

Bump:

Well I´ve tried the Rendevouz burn/correction burns in real time now, but still the fuel is spent before correction burn 3...

I do follow the steps in the manual saying:

Switch to
Accelerate time (or wait a lot if you
wish) until Setup Lead Angle is
similar to Current Lead Angle. As
they become similar, bring back
time to normal. You may go around
Earth several times during this
maneuver. Let the autopilot do the job for you.
It will perform CCB (Course Correction Burn) and a
Rendezvous Burn. After this process ends, you will find
yourself very close to the station.

(It didn´t say that I had to set up the G&C/Rendevouz-target as ISS, but that was quite self-explanatory.)

:sos: