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Author
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Topic: Apollo 14 covers: Exposed to vaccum of space?
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cosmos-walter Member Posts: 691 From: Salzburg, Austria Registered: Jun 2003
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posted 11-05-2017 06:31 AM
Without official Apollo 11 and 15 covers for Smithsonian Postal Museum in Washington, D.C. 986 covers were flown to the Moon; 481 of those landed on the Moon: - 389 Sieger and Scott covers were vacuum packed and sealed in fireproof Teflon-coated fiberglass during Apollo 15.
- As Charlie Duke explained in certificates, his 25 Al Bishop covers with Apollo 16 patch were exposed to the vacuum of space during three lunar EVAs.
Initially he wanted to take three covers illustrated by William R. Hanson from New York just around the moon. However, two letters Charlie and Dottie Duke wrote son after the flight in 1972 prove, these three covers made it down to Descartes Highlands. I assume, they were exposed to the vacuum of space, too. What about the 55 covers which landed on lunar surface with Apollo 14? Were they exposed to the vacuum of space? |
NAAmodel#240 Member Posts: 312 From: Boston, Mass. Registered: Jun 2005
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posted 12-28-2017 02:35 PM
If a lunar PPK is considered exposed to the vacuum of space when the LM is depressurized for egress/ingress then I would say, "Yes." |
Ken Havekotte Member Posts: 2913 From: Merritt Island, Florida, Brevard Registered: Mar 2001
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posted 12-28-2017 03:15 PM
I think Walter, as explained in the above posting, it depends on what you mean by being "exposed to the vacuum of space."When the LM Antares was depressurized for egress and ingress, just about everything in LM-8's ascent stage cabin would qualify as having a direct space vacuum exposure during that time period. From my understanding, Mitchell's flown 55 lunar envelope covers were not in one of his pressure suit outer pockets, but were retained or kept inside his personal PPK for LM Antares throughout the entire flight voyage with a lunar surface stay time of more than 33 hours. |
Robert Pearlman Editor Posts: 42985 From: Houston, TX Registered: Nov 1999
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posted 12-28-2017 04:50 PM
Then I suppose the question becomes how were the covers packaged for flight? Were they loose inside the PPK or were they packaged in some way? If they were sealed in a plastic pouch, like other items we know flew in the PPK, then they were technically never exposed to vacuum. |
Ken Havekotte Member Posts: 2913 From: Merritt Island, Florida, Brevard Registered: Mar 2001
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posted 12-28-2017 09:26 PM
I don't think the Apollo 14 lunar covers were packaged in the same way that the Apollo 15 Sieger covers were. All of the flown Sieger covers were vacuum packed and placed inside a tightly sealed Teflon fireproof container that Scott had placed inside one of his spacesuit leg pockets.Scott had indicated though, to the best of his memory, that the 5-cm. cover bundle was later removed from his suit pocket during the flight to the moon and transferred over to his LM-Falcon PPK or to another LM storage bag for the actual lunar landing. From my understanding of the flown Mitchell covers on Apollo 14, they had not been vacuum packed as the subsequent Apollo lunar landing covers had been in 1971. Therefore, even though Mitchell's 55 moon covers were kept together and perhaps loosely "packaged" up in some way for the flight, I don't think they were necessarily retained in a tightly sealed container for their PPK lunar voyage. I don't think they had been completely PPK-sealed from a space vacuum environment when the landing craft had been depressurized while on the surface. But this is only an opinion of mine with nothing more to add in helping to provide additional new information or facts in shedding new light on some of the more finer details of the cover stories. I wish we had better solid provenance on such details.
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cosmos-walter Member Posts: 691 From: Salzburg, Austria Registered: Jun 2003
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posted 12-29-2017 10:39 AM
Thank you very much for your help, Ken and Robert. That is similar to what I imagined. I hoped, Ken had discussed this with Ed Mitchell. | |
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