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On we go to the LM-CSM Power Transfer procedure. After going through the steps I don't show any amps or volts on the BAT charger. Is this modeled in the simulation, or just another procedural error on my part?

OK. I knew something was wrong. I wasn't comfortable with the DPS pressurization, figured I messed it up. Is this something I might have caught if the pressure gauges were powered? Thanks for looking.

Here's a save just before the PC+2 burn so you can see how I was configured. Thanks for looking, I'm curious what steps I missed. Meanwhile, I just completed the manual MCC burn. It was much less exciting than in the movie! As I mentioned before, my RTCC calculated dV required to get into the...

DES He REG 2 is barber poled. I configured by following along with the Apollo Flight Journal voice transcripts and the LM Contingency Checklist 2 Hour Activation and Docked DPS Burn checklists. The first burn to get back onto the free return went well, except I ended up with a 171 mile...

PC+2 burn seems to have gone OK, with one procedural issue. The procedure read up to the crew for the DPS burn had them close the DES He REG 1 with 10 seconds remaining in the burn. When I did that I got an immediate shutdown. I had to go back and re-do the burn, left the DES He REG 1 open and...

I was questioning my alignment, so I re-did my initial coarse alignment, just to check that I did it correctly. Then I took an off-scenario detour and did a P52 alignment (I have an unfair advantage in that I can see the stars) and that looked good. So accepting that my alignment is OK, I went...

It did! Thank you. Now I need help understanding my midcourse calculation. Using Option 9 I'm able to generate a PAD for the docked DPS burn. The PAD gives me two values for orientation, roll 097 and pitch 079. The yaw is supposedly left up to MCC or the crew, and I understand how/why rotation...

A question about maneuvering: I'm sure there's something obvious I'm doing wrong but I can't figure it out. I'm not sure I'm set up correctly. If I want to pitch or roll the stack I should be using the TTCA (translation), correct? But what I'm seeing when I attempt to maneuver using translation...

Backing up a bit, when we uplink the REFSMMAT, should we use ACTUAL or DESIRED?

It's time to get back onto a free return trajectory. How do I set up the RTCC to calculate that? There are a few MCC choices that offer a free return but I'm not sure which to use, what constraints to set up etc.

"Identical" was selected. And I did crunch the numbers manually following the checklist (assumed docking angle zero), and they matched the PAMFD values. (Hey! I can still add and subtract!) OK. I'll have to continue on through the scenario, I assume at some point they were able to try some sort...

A question about the coarse alignment. I followed the procedure converting the CSM O/I/M to LM O/I/G. Conveniently the PAMFD LGC page does this for us. I used the LM O/I/M gimbal angles displayed on the PAMFD LGC page and entered them with V41N20E. Then I followed along to the point where they...

Getting ready to pressurize the LM RCS. I don't see where they apply power to the Temp/Press gauges. I'm guessing they relied on their system knowledge to close the required c/b's? How do I configure for this step? Or were they just going through the steps without looking at the readings? Thanks.

Well OK, if you want to eat up all that power over a little thing like killing the crew I guess I can turn the SUIT COMP back on. "....You're telling me what you need, I'm telling you what we have to work with at this point. I'm not making this stuff up."-John Aaron in the Apollo 13 movie.

Yes, it was on the Emergency Powerdown Checklist page EMER 1-5 that was on the Apollo Flight Journal. Following the audio transcript I took it down to BMAG 2 Warmup. I wasn't exactly sure what to look at to determine when I got my 10 amp decrease (another learning opportunity), but figured the...

Continuing on through the Apollo 13 scenario, up to 57:00, following the edited flight plan, reading along with the Apollo Flight Journal and trying to configure accordingly. A few questions that probably will cause me great embarrassment: At 56:35 "Turn BAT A off". What do they do here? MN BUS...

Well, that's what I get for not reading the voice transcripts closely. I skipped right over that, in a big hurry to get to the LM entry/activation part around 54:00. Haste makes waste. So, I think I'm squared away, a few more questions. When I checked the supercritical He pressure I got 848...

Yeah, I expect this will be an adventure, but I enjoy digging through the documentation and finding the appropriate procedures etc. And I know some very knowledgeable people I can reach out to if I hit a roadblock. :LOL: Speaking of which.... I have a possible self-induced glitch in the...

Good Morning, I'm running the Apollo 13 scenario. I started using the Apollo 13 Launch option (vs the Apollo 13 Launch and Landing choice), which I believe will simulate the O2 Tank 2 problem? I'd like to get a better understanding of what I should expect to happen as I approach the 55:55 point...

Out of curiosity, what happens in the Apollo13-Launch scenario? How is the tank explosion at 55+55 simulated? Does it happen automatically in the scenario? Does the PAMFD checklist follow the emergency procedures needed or would we be digging those up ourselves from the manuals? Thanks