#Can't Extract Lunar Module From S-IVB
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Check your pyros. They need to be on before releasing the LM.
He might have clipped the LM with the SIVB. I think that is still an issue.
It is clipping in the screenshot. Also the pyros should have been armed unless the checklists have you turn them off for some reason.
I think the checklist does have you turn them off, which is incorrect or misplaced. You should turn them off after LM extract.
I will go through it again later today and double check if that was the case.
According to the manual, I think it says that there are retention springs that release when the switch to separate LM from SIVB. That doesn’t seem to be the case because you still just hover inside the SIVB. Not sure if that’s being looked at or not.
Ye Just did it again, same thing happened. Pyros were armed the whole time, but I don't think that is the problem. The LM just seems to keep getting clipped into the S-IVB. I even made sure to dock as slowly as possible (0.1dV), and I still couldn't get the LM out.
Huh, that’s strange. Never had that problem before. Maybe I’m going too fast?
I’ll do one tonight. Just to see if I can duplicate.
Are you doing it from a certain mission? Like are you starting from the launch pad, or is it an academy mission, campaign mission?
@clear herald
I've had it happen both with the free mission from launch pad and in the last campaign mission 2. The latter twice in a row, now.
Copy that, doing mission 2 now. In the middle of TLI burn.
🤷🏼♂️
Seem to work for me
Oh I noticed on the Docking Checklist it doesn’t tell you to go to Retract on the PROBE EXTD/RETR switch. Did you do that before switching the SIVB/LM SEP? If not, that could be why.
Man these checklists are a mess.
Even when running the checklist it doesn’t have you go to Retract for the probe extend/retract switch.
I'm still thinking something to do with pyros. Maybe the ED circuit breakers ? I had this for a while until I was given a set up custom checklsts by someone here. I'll see if I can find them...
https://www.dropbox.com/s/s9b0wqz61gdpik0/fcon-checklists.zip?dl=0 I fly the whole transposition manually too, ensuring that all movement is nulled before separation of the CSM, and a few hours into the flight (about 3). That way the stack isn't being effected by gravity torque.
I just tried that, still can't remove the LM.
SIVB LM Sep cbs closed?
I'll have to check later (Making dinner and have a DnD session I'm DMing after), but I was able to do it in the academy mission, so I have a feeling it likely is a cb somewhere that's not mentioned when running the checklist.
Unrelated systems
At this point it's also possibly worth doing a steam file verification and in-game panel reset. Just to be sure. I'm leaning toward some cb as well though.
Ah okay, it was a shot in the dark. But shouldn’t that step be in the checklist though?
Which one?
should be on retract before CSM/LV separation
That’s what I thought. I doesn’t have it in there.
its typically left in RETRACT after the docking probe is extended before TLI
and before CSM/LV sep there is a verify step
is it put in retract after docking probe extension pre TLI?
I don’t think it even has you extend the probe before TLI
Lol very much an oversight then
You only do it during pre-sep preparations
At the verify step you mentioned I presume
Looking at it again, those are closed. Currently doing the TLI burn, I'll try to see if I can figure out what is different here vs the academy mission. Feel like the checklist has to be missing something somewhere when running it.
It was the SECS logic switches. The Docking checklist has you turn those off after docking latches engage but before SIVB/LM separation.
Yeah, the docking checklist shows to turn them off and the post-docking checklist doesn't have you turn them back on for LM extraction.
I don't see that checklist. The post docking one does have you flip the SIVB/LM sep switch at the end, so I would assume that one should have you check that the SECS logic and pyro switches are on.
Seems to have combined procedures and missed steps as a result, sadly
Someone screwed that up
At least I know what to change now. That was driving me crazy lol.
Success. Glad we got it resolved. Sort of.
This is why its good to cross reference actual procedures
Is there links to them somewhere? I'd like to download pdfs of them if I could. Make use of my second screen lol.
Great source here of docs, let me know if you seek anything specific