/sci/ - Science & Math

>>10812678

It seems quite clear that Apollo 17's EVA-2, going up to the foot of the South Massif, is the farthest that humans have ever traveled away from their spacecraft during an EVA of any kind, spacewalk, moonwalk or otherwise (discounting the LRV as a spacecraft). Despite the easily-checked small sample (of Lunar landings vs spaceflights, esp. Bruce McCandless in the "jetpack" (my word)), I have tried to find this autistic fact explicitly stated in the literature somewhere, but I don't see it. Soliticing help.

I am also very interested in exactly WHEN the landing-gear were extended on each mission (generally, this occurred when the complete spacecraft was in lunar orbit as a prep-step), as this is a basic, definite, irreversible(?) mechanical step which is akin to the separation/docking events. This makes sense in that you want the smallest target for micrometeoroids and other shit flying around, during transit, until the time comes(?) Again, I solicit help for details here. The Apollo Lunar Journal itself has gaps here, but I seem to remember another website which archives play-by-play dialogue by the astronauts-spacelog, spacelab or similar. I raised details about this in a recent /sfg/ OP:

>>/sci/thread/S10735734

I am aware of a real-time Apollo 17 site and the Apollo 11 one mentioned ITT. Just haven't dug into these to answer my question. Tbqh I had trouble navigating the Apollo 17 site last time I played with it.

Pic: The Falcon's Descent Propulsion System (DPS) engine bell crumpled a bit (as designed) during a hard landing. Consider the program's rocket engines themselves, and then ask about subsequent rocket engines. The first stage had the F-1 rocket, the second stage had five J-2 rockets, and the third stage had a single J-2 rocket. The Service Module had its so-called Service Propulsion System (SPS) complete with bell, and the LM had its Descent Propulsion System (DPS) and Ascent Propulsion Systems (APS).