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Originally posted by weedwhacker
Since this thread alleges a 'SEVA' occured very soon after landing, then it will have to be made clear that the LM cabin could be evacuated faster than the Apollo 11 cabin.
DID they remove the biological filters for the Apollo 12 mission?
A bacteria filter could mounted on the cabin side of the forward cabin relief and dump valve. This was done only on Apollo 11.
115:05:44 Bean: Okay. (Pause)
[Al is reaching down to get the dump valve. There is also a dump valve in the overhead, rendezvous hatch. Although the checklist calls for use of the hatch valve, the choice of which valve to use for depressurization is up to the crew. Because it is a bit of a stretch to reach the overhead valve, only relatively tall people like Charlie Duke on 16 and Gene Cernan on 17 used it. Neil Armstrong opened the Apollo overhead valve for the depressurization prior to the post-EVA equipment jettison.]
[Jones - "The checklist explicitly calls out using the forward dump valve."]
[Conrad - "I don't remember ever talking about using the one in the overhead."]
[Al will open the forward dump valve and vent oxygen until the cabin pressure has reached 3.5 psi. He will then put the valve in the Auto position which, at 3.5 psi, means the valve is closed. They will then watch their suits respond to the decrease.]
if it makes any difference
This photograph shows the interior of the Apollo 17 lunar module Challenger after the third and final EVA. The astronauts (Gene Cernan and Jack Schmitt) have removed their A7-LB spacesuits and laid them atop the ascent engine cover here, with the inside of the +X overhead hatch clearly visible above.
Chandrayaan-1, picked up signatures of organic matter on parts of the Moon's surface, Surendra Pal, associate director, Isro Satellite Centre (Isac), said at the international radar symposium here on Friday.
Organic matter consists of organic compounds, which consists of carbon -- the building block of life.
It indicates the formation of life or decay of a once-living
The Standup EVA
Commander David R. Scott, his upper body extending through the top hatch of the lunar module (LM), performed the 33-minute standup EVA.
111:58:43 Gibson: Intrepid, Houston.
111:58:47 Conrad: Go ahead.
111:58:49 Gibson: Well done, Intrepid. You got a bunch of happy geologists in the back room waiting to go. Say, we're standing by with a LM consumables update and also standing by for your description (of the view out the window).
I was looking for pictures of the inside ladder they climb for top hatch egress but didn't have much luck
The astronaut conducting the S-EVA would then stand up on top of the ascent engine cover inside the LM crew compartment (much like standing on a bench or low table) so that he could poke his upper body out through the +X overhead hatch and take in the full 360-degree panoramic of the landing site from just over seven meters up. Due to the dimensions of the +X hatch, only one astronaut could take in this “view from the top floor” at a time.
131:54:00 Shepard: Okay, babe. Fred, the surface, here - we spoke about that - is textured. It is, of course, a very fine-grain, dusty regolith, much the same as we have in the vicinity of the LM. But, there seems to be small pebbles - more small pebbles - here on the surface than we had back around the LM area. And the population of larger rocks, perhaps small boulder size, is more prevalent here. Okay, this is probably pretty good.
131:54:32 Mitchell: Yeah, this a good place for A and I might also comment, Fredo, that we have an appearance here, quite often, like raindrops; (like) a very few raindrops have splattered the surface. It gives you that appearance. Obviously, they haven't; but it's that sort of texture. In places.
131:54:52 Shepard: Yeah, I think...I was just about to say that there's a relationship between the texture and these small surface pebbles. Okay, point A.
132:03:27 Haise: And, while we got a few seconds there, Ed. The raindrop pattern you mentioned, is it pretty general or is it just here and there that you noted this texture?
132:03:40 Mitchell: It seems to be fairly general, Fred. (Long Pause)
132:05:50 Shepard: Okay, we got close-up shots: 12, 13, and 14. All at 9 o'clock shadow, 12 and 14 are two typical examples of the raindrop-textured pattern of which Ed spoke. Now, 13 is a picture of a foot track...