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  1. Wedge313

    Apollo 14: RTCC LM S.V. and CSM S.V. Update Procedure

    Well, I'm at a loss. I went through the AGS Initialization Routine a few times this morning, and I'm doing something wrong. Again, before the process my V83 and DEDA numbers match up. After the S.V. uplinks but before V47 414+1, V83 looks good and the DEDA still matches up. But after V47 and...
  2. Wedge313

    Apollo 14: RTCC LM S.V. and CSM S.V. Update Procedure

    Maybe this is where I'm going wrong? I'm using present time for the LM S.V. (Display 20), but for the Display 21 CSM S.V. I thought the flight plan asked for the vector to be calculated for time PDI-10. In my case my PDI is scheduled for 108:43:29.28, so I entered a time (TIM) of 108:33:29 and...
  3. Wedge313

    Apollo 14: RTCC LM S.V. and CSM S.V. Update Procedure

    Thanks indy91. It looks like I've been doing the uplinks correctly. But after the uplinks, one thing I notice is it takes a VERY long time if I try to run P00 (COMP ACTY stays on for a long time). If I try to run V83 it also takes a VERY long time to display information. And after going V47 and...
  4. Wedge313

    Apollo 14: RTCC LM S.V. and CSM S.V. Update Procedure

    Hello again, I'm having problems with the Apollo 14 lunar descent, and I'm trying to figure out where I'm going wrong. I'd like to ask a few questions as I troubleshoot. Let's start with a RTCC procedural question: I'm at about 106:30 on the flight plan, and I'm supposed to uplink to the LM...
  5. Wedge313

    Apollo 14 LOI Burn: OXID FLOW VLV to INCR?

    Hi, Quick procedural question: Just prior to the LOI burn the Apollo 14 checklist has a step "OXIDIZER FLOW VALVE INCR-INCR (VERIFY)". During the burn this quickly result in an imbalance between the fuel and oxidizer. It didn't look "normal" to me so I balanced out the fuel and oxid then left...
  6. Wedge313

    Apollo 17 LOPC Burn RTCC Planning Question

    Addendum: I was looking at the Apollo 17 In Real Time website to find the LM De-orbit Burn PAD numbers (the AFJ stops at Day 5 for some reason?) They have a "Mission Status" screen that shows the CSM in a 53 x 75 orbit at the time of docking. Not sure how accurate their info is, but that's close...
  7. Wedge313

    Apollo 17 LOPC Burn RTCC Planning Question

    Weirdly, I ran this ascent/TPI without looking at the tweak because I wanted to see if the corrected P12 VH was indeed the error, sort of a rush-through proof-of-concept thing, and went straight into the TPI and MCCs, and it all worked out well. Now that I know where my original error was I'll...
  8. Wedge313

    Apollo 17 LOPC Burn RTCC Planning Question

    Yeah, I didn't understand how I got there either. But problem solved. As is normally the case I screwed up, before lift off on P12 the F 06 76 VH value was 5509.5, my PAD value was 5526.4, and for some reason I didn't catch it. With the correct VH entered the ascent ended up with a 38.6 x 9.7...
  9. Wedge313

    Apollo 17 LOPC Burn RTCC Planning Question

    I did the plane change by itself, ended up with a cross range of 0000.1, and my CSM orbit was 69.8 x 54.0. (The flight plan shows after the LOPC an expected orbit of 63 x 61.3.) Here's why I'm asking: I've gone through the LM ascent twice now, and the whole geometry seems off, after insertion...
  10. Wedge313

    Apollo 17 LOPC Burn RTCC Planning Question

    Hello! Again I'm asking for some RTCC help. I'm getting ready for the LM ascent. I'm trying to set up for the CSM plane change, but it looks like I'm trying to do two things at once here- a plane change and a circularization. And I can't figure out how to plan it. Unless I missed something...
  11. Wedge313

    Apollo 17: Lunar Rover Deployment?

    Well, not sure why (I didn't change anything) but on EVA-2 the flag and LRV deployed without issue. The one possible thing I did differently was I think this time I was "in" the Challenger-LEVA "ship" when I pressed "V" and "F". I think the first time I was "in" the Challenger "ship". Could...
  12. Wedge313

    Apollo 17: Lunar Rover Deployment?

    When you say "code" do you mean the .scn file? In the "ChallengerProjectApollo/LEM it shows STATUS Landed Moon, then later APOLLONO 17, LANDED 1. And then much further down there's a section that shows LATERALVELOCITY (0) and ALTITUDERATE (which is 0.019050000000). I couldn't find any line that...
  13. Wedge313

    Apollo 17: Lunar Rover Deployment?

    Hello. How do you deploy the LRV? I've begun the Apollo-17 EVA-1, and I can't figure out how to deploy the LRV or the flag. I thought "F" did the flag and "V" did the rover (I got them both deployed on Apollo 16), but I'm having no luck on 17. Thanks
  14. Wedge313

    Apollo 17 DOI-1 Planning with RTCC?

    Thanks for the explanation. I won't pretend I fully understand it! But I went back and read a few articles, of the "orbital mechanics for dummies" category, to try to get a grasp of what you're saying. And then because I deal better with pictures than words I went back and played with the RTCC...
  15. Wedge313

    Apollo 17 DOI-1 Planning with RTCC?

    Hello, I'm running Apollo 17, I'm currently in a 170 x 51 orbit around the moon after LOI. It looks like the orbit has me passing pretty much over the intended landing site. I'm trying to use the RTCC to plan the DOI-1 burn. Another learning opportunity for me, both in how to use the RTCC and in...
  16. Wedge313

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    I'm missing something. The bottom left says "No Target!", and if I try to uplink I get a message "Vessel has no IU". I tried using AS-512-S4BSTG as the SRC but it wouldn't accept that. What am I doing wrong? Thanks.
  17. Wedge313

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    Going back is OK, and I'm not above cheating! But I might try the TLI using the APS-inop procedure (since I've mastered the normal procedures, it's time to challenge myself ?) Thanks
  18. Wedge313

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    I did use 10x a bit before TLI, maybe that's what happened. I was using exterior view during the 10x so didn't see any unusual rates building up. But replaying the TLI another thing I notice is the ullage seems to be coming from only one nozzle, so I'd guess my 10x before TLI may be the culprit...
  19. Wedge313

    Apollo 17: Post-TLI S-IVB Maneuver to SEP ATT Problem

    Hello, I'm having a problem with the S-IVB. When it begins it's maneuver to the SEP attitude, it develops very high rates and quickly is in an uncontrollable tumble. Viewing the maneuver from the exterior view it appears only one of the APS units is functioning. I'm not sure how I got myself...
  20. Wedge313

    Apollo 17 Launch Time Change and Azimuth Update Steps

    It looks like the Apollo 17 scenario is set up for the originally scheduled launch time of 02:53. How do I go about changing the launch time to match up with the actual launch time (05:33) after the delay? I think I see how to get the updated launch azimuth (RTCC UTI>IU>LAU) then V78E to input...
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