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Author
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Topic: Apollo CM crew egress after splashdown
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David C
Member Posts: 1039
From: Lausanne
Registered: Apr 2012
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posted 01-16-2014 01:55 PM
  
quote:
Originally posted by Michael Davis:
I assume that Apollo 7 took the longest time to go from Stable I to Stable II in part because they were the first to test the procedure.
According to Walt Cunningham it was because they were waiting for the CM to cool off before inflating the bags which could have contacted the heatshield. Surprised me to hear that. I guess there was a little extra caution on the first flight. |
David C
Member Posts: 1039
From: Lausanne
Registered: Apr 2012
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posted 01-16-2014 01:58 PM
quote:
Originally posted by Obviousman:
An all-Navy crew should have done it by protocol: most senior is last on, first out. (TIC)
Your logic applies to a ship alongside under Navy orders. None of that applied in this case. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 01-16-2014 03:00 PM
The three CM uprighting bags were inflated nine minutes after splashdown, according to the Apollo 7 timeline. It then took four minutes to upright the spacecraft. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 01-16-2014 10:40 PM
quote:
Originally posted by Peter downunder:
...did the CMP fly the spacecraft during re-entry from the left seat on all Apollo missions?
Here is another thread that discusses who sat where in the CM. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 01-24-2014 10:33 PM
This incident occurred during the first Skylab splashdown: Recovery Helicopter Struck by Drogue Parachute Reefing LineThe recovery helicopters entered the fall out pattern of the debris resulting from the command module entry before all debris had reached the ocean surface. A 3 meter section of drogue parachute reefing line impacted the main rotor blade of one of the helicopters and was found draped over a landing gear strut when the helicopter returned to the aircraft carrier. An impact time analysis has been performed for all debris generated during reentry. The following table shows the latest time of landing for all debris which is still in the air after command module landing. As a result of the analysis, recovery procedures are being modified to prevent helicopter entry into the debris fall out pattern until all pieces which could damage the helicopters have impacted the water. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 01-28-2014 08:25 AM
Are there any stable II photos of Apollo 11? |
cmj1964
Member Posts: 11
From: Broomfield, Colorado, USA
Registered: Mar 2013
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posted 01-28-2014 08:59 AM
The 290 lbs of seawater trapped in the tunnel would also contribute to the longer uprighting time of the Apollo 7 CM. The Apollo 7 CM had a two hatch configuration in the forward tunnel, and the mission report addresses post-splashdown seawater leakage through a vent valve in the upper tunnel hatch (ref: paragraphs 5.19.6 and 11.23). Subsequent CM's had a single unified tunnel hatch, which did not have the suspect valve. |
cmj1964
Member Posts: 11
From: Broomfield, Colorado, USA
Registered: Mar 2013
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posted 01-28-2014 09:16 AM
Figure 11G on page 114 in Bob Fish's excellent book, "Hornet Plus Three", is a USN photo of Apollo 11 in Stable II. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 01-28-2014 10:15 PM
I found this stable II photo on the KSC website. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 02-04-2014 09:14 AM
Are the Skylab splashdown locations shown on this map correct? The map indicates that Skylab 4 splashed down somewhere north of Hawaii. However, the photo caption for S74-17133 says that Skylab 4 splashed down 176 miles southwest of San Diego. Hawaii is about 2500 miles from San Diego. Which one is correct? |
moorouge
Member Posts: 2458
From: U.K.
Registered: Jul 2009
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posted 02-04-2014 10:11 AM
The photo has the correct location. |
moorouge
Member Posts: 2458
From: U.K.
Registered: Jul 2009
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posted 04-03-2014 08:53 AM
quote:
Originally posted by cmj1964:
The 290 lbs of seawater trapped in the tunnel would also contribute to the longer uprighting time of the Apollo 7 CM.
Actually there was approximately 400lbs of water in the tunnel. Of more concern was the fact that if one of the uprighting bags had failed the capsule would have been unable to return to Stable 1. On edit - the previous figure of 290lbs of water in the tunnel is probably closer to the actual amount. My quoted figure, though in a NASA technical report, is likely to be from memory. The 290lbs is from the '7' mission report. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 12-20-2015 12:18 PM
Regarding the CM crew egress for Apollo 11:The book "Apollo Moon Missions - The Unsung Heroes" has the CM crew egress order as Aldrin-Collins-Armstrong. It also states that the astronauts were lifted up into the helicopter in the same order. "First Man" mentions that Armstrong was the last to exit the CM. Any other sources? |
canyon42
Member Posts: 238
From: Ohio
Registered: Mar 2006
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posted 12-20-2015 03:22 PM
Baker's "History of Manned Spaceflight," Harland's "The First Men on the Moon," and Farmer's and Hamblin's "First on the Moon" all have the egress order from the spacecraft as Armstrong-Collins-Aldrin. The last source states the same order was followed in lifting to the helicopter, while Baker doesn't mention it and Harland says that the lifting order was "unclear" because of the identical BIG suits. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 12-20-2015 06:38 PM
Some disagreement there. How about the order the Apollo 11 astronauts stepped off the helicopter? The caption for photo 6901225 identifies (from left to right) Aldrin, Armstrong and Collins. I would agree with that. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 12-20-2015 10:57 PM
If you compare this navyhistory.org image to the film footage, you will see that it is definitely the third astronaut hoisted up to the helicopter. Same arm and leg positions, and same plastic bag between the knees. Any idea what was in that? The image is identified as Armstrong. |
Captain Apollo
Member Posts: 260
From: UK
Registered: Jun 2004
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posted 12-21-2015 03:22 AM
quote:
Originally posted by dabolton:
What was risk exposure to breathing toxic fumes after an Apollo landing?
Had to say, could not resist, but regarding toxic fumes, I recall a few of the frogmen saying that the crews were a bit "ripe." |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 12-21-2015 10:26 AM
The PAO transcripts do not mention the A11 astronauts by name, only by number, during the CM egress and helicopter hoist. |
moorouge
Member Posts: 2458
From: U.K.
Registered: Jul 2009
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posted 12-21-2015 02:29 PM
quote:
Originally posted by dabolton:
What was risk exposure to breathing toxic fumes after an Apollo landing?
You'll find all the answers in MSC-01856, Revision C, dated June 21 1971 - Apollo Recovery Operational Procedures Manual. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 12-21-2015 09:53 PM
From the Apollo 11 Technical Crew Debriefing on page 16-7: COLLINS: Recovery Operations went very smoothly. The swimmer threw the BIGs into us. We put the BIGs on inside the spacecraft. We put them on in the lower equipment bay. Neil did first, then I did after him. Buzz put his on in the right-hand seat. We went out; Neil first, then me, and then Buzz. It's necessary, at least the way we had practiced it, for us to help one another in sealing the BIGs around the head to make sure the zipper was fully closed. |
LM-12
Member Posts: 3324
From: Ontario, Canada
Registered: Oct 2010
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posted 02-08-2017 12:19 AM
I would say the order the Apollo 8 astronauts were hoisted up to the recovery helicopter after splashdown was Anders-Borman-Lovell. |
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