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Messages - MadDogBV

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1
A re-entry simulation that was due to be conducted at 2pm in the afternoon is officially stricken when AFD calls the SIM SUP, letting him know that Gene Kranz ordered for it to be canceled due to timeline considerations. This later thrills the FIDO on duty (Dave Reed), who was concerned about having to give up real-time tracking data due to the simulation requirements.

It is indeed rescheduled to 6am the following day, the same time that the White Team is going on shift - and a nail-biting eight hours prior to entry interface!

Link: https://apolloinrealtime.org/13/?t=116:55:33&ch=6

2
STONEY Paul Weitz gives the go for crew departure to Skip Chauvin. Vance Brand then chimes in.

It's worth noting that both Weitz and Brand were Naval aviators, thus the friendly and jovial warning, "watch your six".

Note Apollo 13 preceded Top Gun by about 16 years, and the use of that phrase in the armed forces as a "keep your eyes out/watch your back" type warning has persisted for even longer!

Link: https://apolloinrealtime.org/13/?t=-03:59:38&ch=7

3
Per the PAO transcript, courtesy of the Apollo 13 Flight Journal:

Quote
(-04:19:58 GET) This is Apollo Saturn Launch Control; we're continuing in our hold at the T minus 3 hour and 30 minute mark. This is a planned hold at this time scheduled to last for 1 hour. The close-out crew has just recently arrived at the 320-foot level. They went across the swing arm to the White Room area and have now opened the hatch of the Command Module, which has been named Odyssey. The backup pilot, Vance Brand, has entered the spacecraft at this time. The close-out crew consists of 6 men. The pad leader, the backup pilot, a NASA quality control man, two spacecraft technicians, and [...] two suit technicians.

Some interesting things to note about the checkout procedure:

  • It appears that as Vance goes through the tests, his callsign changes depending on where in the center couch he is seated. His first spoken lines over the loop identify himself as the "CDR" when he attempts to begin the chlorination procedure, until Skip redirects him. Later, he identifies as "BCMP" when he's inspecting the MC&W lights, given that he's the backup backup pilot (with the backup pilot, Swigert, of course having been placed into the prime crew).
  • The STONEY or capsule communicator is nominally Paul Weitz, though at this point, he was apparently running late getting to the launch site. One of the Cape technicians named Joe Battaglia was going to sit in for Weitz until he arrived, but it doesn't appear that this happened. (Little is known about Joe other than that he was an engineer at the Merritt Island facilities.)

Link: https://apolloinrealtime.org/13/?t=-04:18:35&ch=7

4
Prior to MCC2, GUIDO Will Fenner asks RETRO Bobby Spencer how to get into the observatory to look at the telescope, presumably to watch the spacecraft or the S-IVB. Aside from walking directions, Bobby gives Will the "magic words" on how to get into the building, since he was apparently denied entry the last time he had attempted.

Link: https://apolloinrealtime.org/13/?t=029:21:52&ch=21

5
Apollo 13. However, it has been a while since I cleared my cookies and cache for Apollo 13 In Real Time. I might try that next.

Edit: Sure enough, that fixed the problem. The transcripts now look wonderful. You might make it a recommendation to previous users of AIRT to clear their cookies and cache to get the updated transcripts.

6
This could simply be reckless speculation, but as I look back over the tapes, the times of 107 to 113 would have put MCC5 squarely in the Maroon team shift which Bill Boone was scheduled to work. 114 to 116 was the next Black team shift with Dave Reed back on the console. Boone seemed to have a very strong preference for 116 in all of the conversations on the FIDO loop.

I don't think any flight controller would necessarily shy away from doing a midcourse, but this was a novel procedure that had never been tried, and as of 91 hours it had not yet been simulated. :) With all the public pressure on Houston as a result of Windler and Weichel's alarming press conference, I have to imagine that being the FIDO on console for a manual course correction burn to get back in the corridor carries a metric ton of responsibility.

7
Looks good, thanks Ben. It does seem a bit more accurate. There were some quirks I noticed such as duplicate text or inconsistent words ("P2" and "P-tube" got mixed up a couple times in the transcript of a recent Moment of Interest I posted), but on the whole it seems pretty strong and if nothing else gives a good baseline to work with. It does pretty good at transcribing quiet parts in particular.

For example, parts like the attached image seem to occur a fair amount. (Having listened to these clips, I can say fairly confidently that "the, uh" is not repeated 15 times like the transcript implies here.)  ;D

Edit - 10/22/2024: Per my updated post below, the transcript errors were due to my computer storing an outdated transcript in the browser cache. This was fixed by clearing cookies and cache for Apolloinrealtime.org.

8
It is often overlooked just how rushed and slapdash the last few hours were prior to reading up the re-entry procedures for Apollo 13. The reason it took so long to read the procedures up to the crew was because someone (possibly Gerry Griffin or Neil Hutchinson) insisted on ensuring that all of the flight controllers could get copies of Mattingly's checklist to review simultaneously with the reading of procedures -- and the Xerox machine nearest to the MOCR was broken.

Link: https://apolloinrealtime.org/13/?t=125:28:47&ch=6

9
RETRO Bobby Spencer and RETRO SUPPORT Bob Davis (a backroom SSR person whose technical capability is comparable to John Aaron's) wants to send FIDO Bill Stoval some data to help him answer an inquiry he received from NORAD. There is a problem, however, and it's nothing to do with the data, but rather the ingenious method that NASA built into the MOCR to help mail documents from one room to another - the pneumatic tube (P-tube) system.

Each engineer's console is fitted with a P-tube station, which is assigned a simple one or two-digit number.

Bill Stoval, the FIDO who was on duty for three burns during Apollo 13 -- MCC2 in translunar coast, the PC+2 abort burn in circumlunar space, and MCC5 in transearth coast -- is currently working his most "lax" shift in the MOCR, with both crew and MOCR practically on standby while the entry procedures are being finished up. He is nonplussed when asked to give his station's number.

Link: https://apolloinrealtime.org/13/?t=125:12:35&ch=19

10
At roughly 6.5 hours prior to re-entry, Neil Hutchinson in SPAN calls up GNC Buck Willoughby and proudly proclaims that the CSM engineers have completely filled up the SSR rooms, including the consoles that would have presumably have been used by the Booster engineers (or in Neil's parlance, the "Booster dummies") to spectate on re-entry. Earlier in the night, he had warned the CSM backroom folks to get in early to beat them to the punch.

As a humorous note: At around the same time that Milt Windler warned about access being restricted to the MOCR and SSRs due to overcrowding concerns, EECOM Charlie Dumis had cleverly asked his backroom personnel what they planned to be doing during re-entry. Dick Brown (EPS) said that he would be working on the Olivetti punching up numbers - and all of his colleagues thereafter said they would be helping him on the Olivetti. These "jobs" helped to justify them being in the SSR, ensuring they'd be able to view the re-entry.

Link: https://apolloinrealtime.org/13/?t=136:12:29&ch=18

11
General Discussion / Re: Other Apollo Missions
« on: October 03, 2024, 02:37:27 pm »
I would assume until there is an update from NSF that it's on hold indefinitely.

12
Background:
Although the FIDO is nominally and de facto the "leader of the trench" (save, of course, for the Chief of the Flight Dynamics branch), there was most certainly still an unwritten hierarchy that existed within the trench's corps. Jay Greene and Dave Reed were widely (and rightfully) regarded as the most experienced and most skilled FIDOs who got assigned to most if not all of the powered flight duties (liftoff and lunar descent) since they would need to have the confidence and nerves to know whether or not to call an abort. Bill Stoval was the midcourse man, and he oversaw two of the midcourses during Apollo 13 - the SPS GNN midcourse to a hybrid trajectory, and the manual DPS burn midcourse for corridor control. Bill Boone was the other FIDO scheduled to work.

As of the time of Apollo 13, Boone had been in the Flight Dynamics SSR during Apollo 4 and had also been a FIDO in Apollo 7, Apollo 11, and Apollo 12. Glynn Lunney's shift after the accident was intended to have the crew asleep starting at around 60 hours. Instead, at 61:30, they executed the DPS midcourse to free return, and Boone provided the trajectory for this. The original burn would have put them in the middle of Madagascar, until RETRO Tom Weichel asked FIDO to move it off the land into the Indian Ocean.

He had been regarded as a "junior controller". From Ed Pavelka's oral history:

Quote
]"In this particular flight we were introducing several new flight controllers, and we actually had dual assignments on some of the shifts. I was with another controller, Bill [William J.] Boone [III], who was a junior controller. So I was on the console with him as his trainer, if you will, or on-the-job training type. Other positions had this, too. So for many of the shifts, Bill would be there, and I would come in with him for the difficult parts or what was more complicated. Actually, during the part of the accident where they discovered it, I was just coming on when the information began to come in."

While Pavelka went to do troubleshooting at the other consoles during Lunney's shift, Bill Stoval and Jerry Bostick provided support for Boone. Later after the PC+2 burn, Jay Greene would act as Boone's "supervisor" on the subsequent shifts, when he himself wasn't pulled away to attend planning meetings.

Description:
Boone is now working his back-to-back shift in the MOCR, having been on for the Maroon team (Milt Windler as FLIGHT) shift after the PC+2 burn and now filling in for Dave Reed during the Black team shift. Lunney has now posited to the Trench that in addition to making considerations in selecting a TIG time for the corridor control burn, they now need to factor in weather avoidance with a mild storm in the Mid-Pacific Line area.

FIDO Bill Boone calls up RETRO Chuck Dieterich to discuss weather avoidance. Whether it's due to fatigue, or perhaps overenthusiasm or trying to find something to do, Bill Boone initiates a bizarre exchange on the loops where he declares "we don't have any contraints [on when to do the weather avoidance burn] as long as it's between those two numbers [104 and 118 hours]." This immediately makes Chuck prickly. When Boone holds his ground and declares that he's simply trying to ensure they're both attacking the problem the same way, Chuck replies brusquely "I know what my job is, Bill."

Apparently Chuck was genuinely angry, since he snubs Boone later at 91:54:30. When they do finally get to talking again, Boone apologizes.

Link: https://apolloinrealtime.org/13/?t=091:46:05&ch=20

13
Apollo 13 Moments of Interest / 056:40:24 RETRO Spencer nixes direct abort
« on: September 05, 2024, 11:09:59 am »
Pretty self-explanatory. During the height of the crisis, RETRO Bobby Spencer has run the numbers on how much it would cost to do a direct abort at T+60 - 10,000 ΔV (delta V, or available velocity). The numbers he gives to Maroon FLIGHT Milt Windler are unrealistic. Milt doesn't realize this at first as he tells Bobby "work on that", but soon they quickly come to the conclusion that it's not doable. Even the subsequent conversation involving 7,000 ΔV implies that they would have the SPS engine for an undocked burn.

They will not.

Link: https://apolloinrealtime.org/13/?t=056:40:24&ch=19

14
At 133:00:49 GET during a last-minute review of the CSM entry checklist, Maroon FLIGHT Milt Windler tells RETRO Tom Weichel that the P-27 updates for a state vector and target load should only be done if absolutely necessary due to shortness of time. Since the order came directly from FLIGHT, RETRO just "rogers" it. But later on, it's clear that some dialogue is happening off the loops regarding how problematic this thinking is. In particular, YAW Gran Paulis points out that the crew doesn't even need to do anything while the loads are being submitted. He surmises Milt Windler must have thought that some reading-up of PADs were necessary to the crew.

FIDO Jay Greene, rather boldly and concisely, suggests that Paulis assumed too much too quickly about Milt's thought process.

Link: https://apolloinrealtime.org/13/?t=133:06:41&ch=20

15
During the LM jettison, in a brief conversation with YAW Will Pressley, Jack Garman warns him that "transience in separation" might cause a CSM gimbal lock to occur. He's referring specifically to oscillations in attitude as a result of the delta-V imparted on the CSM in separation. The deadband isn't as much of a concern since the spacecraft is in a 5-degree deadband; thus, the middle gimbal angle is moving between 10 and 20 degrees from gimbal lock.

Later, one of the AGC support personnel calls the gimbal lock warning, but because his voice on the loop is so faint, it's missed and it's a full 3 or 4 seconds before anyone from the ground brings this to the attention of FLIGHT/CAPCOM. By that point, it's already too late and Swigert has already gone to direct control to correct this, but Garman does take this as an opportunity to remind Pressley of his concerns.

Link:
Before gimbal lock - https://apolloinrealtime.org/13/?t=141:15:37&ch=22
Gimbal lock - https://apolloinrealtime.org/13/?t=141:30:14&ch=22

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