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  1. M

    Apollo 11 Docked IMU Coarse Align?

    That seems right. Remember, the LM has the axes arranged differently then the CSM: what you'd call yaw in the CSM is roll in the LM, what you'd call roll in the CSM becomes yaw in the LM. That's why the FDAI in the LM has no red zone on the ball itself, but on the outer bezel.
  2. M

    CSM HGA reacq mode

    Well, no gremlins there. Tracks earth, hits its stops (even switches back to wide then), returns to the set angles once the signal is lost, reacquires, switches to medium/narrow beam once signal strength ist high enough. The only thing I could criticise is that the gimbal limits are a little bit...
  3. M

    Apollo 12 Checklists

    The only problem is that we don't have any CMC software for 12. However, that shouldn't be a big problem. From what I could find, the biggest difference between Colossus 2A and 2C seems to be the newly added Verb 79, which is nothing but a more comfortable way of doing the barbecue roll and...
  4. M

    CSM HGA reacq mode

    Jupp, that's a lot better.(y) I'll dig for a translunar quicksave and try that in PTC when the HGA hits its scan limits. See if some gremlins hide there. Well, I'm flying the mission (Apollo 11) with the AFJ next to it. At about 85:00:00, they seemed to have a little problem with the reacq...
  5. M

    V8 Release Work Thread

    Not quite. The same document, p 7: "Alphanumeric readouts: green, dominant wavelength: 4900 to 5300 Angström" In todays terms (Angström has been phased out in the 70's here in Germany): 490 to 530 nm. That's the color usually known as 'cyan', so that's about right. I for myself just find the new...
  6. M

    CSM HGA reacq mode

    Now after spending some time in lunar orbit doing essentially nothing except watching the systems (aka flying a nine hour rest period) I think I found a flaw in the reacquire mode of the CSM high gain antenna: looks like it doesn't switch back to wide beam once the signal is lost. When I switch...
  7. M

    V8 Release Work Thread

    That's setting EMEM address 3012 to 74 (octal), right? I'm just before DOI with Apollo 11 and not really inclined to fly everything again, just because of that...
  8. M

    Control Characteristics - CMC vs SCS - Induced Yaw

    ...or monitor Channel 31 with a V11N10 while moving the Stick. But that's looking in the inner workings of the CMC and not everybodys taste. And you've got to be familiar with octal, so... ;)
  9. M

    [NASSP 8] [Apollo 7] Rendezvous questions & difficulties

    That's why I'm asking.😁 I've seen that in the code, too, and I'm quite interested in trying it. So the only way right now would be to transplant Colossus 237 in Apollo 11 (or 10). You can't simply change the .scn to achieve that, right?
  10. M

    [NASSP 8] [Apollo 7] Rendezvous questions & difficulties

    Only related in the widest sense (at best): is it possible to equip the S-IVB with some sort of "VHF-transponder", so that one could use the VHF-ranging equipment? I know, the real S-IVB didn't have that; but it would be interesting to play with it. And we don't have to use it "officially"... ;)
  11. M

    [NASSP 8] Abort light

    When I remember right, the abort light gets tested during prelaunch already. Don't remember the exact time, but it gets turned on and off twice. There were 3 MOCR positions which could send an abort request to the spacecraft directly: BOOSTER, FIDO, FLIGHT. All other flight controllers had to...
  12. M

    No GSE glycol cooling on the pad

    Hmm, does the GSE get activated at some specific time? I don't have cooling in the launch scenario, which starts at - 3h something, but I do have cooling in the -20 min scenario. (And I'm too lazy to wait those 3 hours to check out the time, I admit that...😉) Edit: found it: the RAD FLOW CONT...
  13. M

    No GSE glycol cooling on the pad

    The AOH calls for 35 - 50° F, which does make sense. You've about 6 mins of flight with no heat sink in front of you. The system needs to be pre-chilled somehow.
  14. M

    No GSE glycol cooling on the pad

    10x max. But even in 1x the rad out temp doesn't really go down to a comfy level. 70° F is the best I get. When I power up the IMU it gets even worse...
  15. M

    No GSE glycol cooling on the pad

    Just try the standard "Apollo 11 Launch -MCC" scenario and power up the primary pump. I know very well that all those system updates may invalidate my quicksaves, so I start from scratch from time to time. Yesterday it was time.;)
  16. M

    No GSE glycol cooling on the pad

    I am on build 1663 -that's why I'm asking.
  17. M

    No GSE glycol cooling on the pad

    Seems like the recent changes in the GSE glycol cooling broke something. I don't have any cooling on the pad now, radiator and evap outlet temps go offscale high after the pump is switched on and remain high. Or do I have to change something in the .scn?
  18. M

    Waste water production/ tank size

    Those 80A are already rounded up very generously. When I look at the FC loads very sharply, it's rather 70 A (which would give me about 35 hours). But you do have two SPS burns during that period, so I rounded it up to 80 A. I even think that 80 A are still too much, as quite a lot of the load...
  19. M

    Waste water production/ tank size

    I'm currently flying Apollo 11 and came along an odd thing: either our FCs produce too much water or our waste water tank is too small. According to air/ground transscripts, they made a waste water dump to 0% at 56:56:00, the last one before lunar orbit. The next was done at 84:00:00, about 27...
  20. M

    Gimbal Lock

    You could also try the rapid IMU realign procedure: Maneuver to 0,0,0 on the GDC FDAI V41N20E, E,E,E (coarse align to 0,0,0) V40N20E (fine align; NO ATT lt off) V25N07E 76E, 40000E, 1E (set DRIFT flag) V25E 77E, 10000E, 1E (set REFSMMAT flag) Do a P52 option 3 (Note that auto optics may be off...
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