Editing Apollo Lunar Module (section)

==Proposed derivatives==
{{Main|Apollo Applications Program}}

=== Apollo Telescope Mount ===
[[File:Wet Workshop.svg|thumb|Original proposed "wet workshop" Skylab with the Apollo Telescope Mount]]
One proposed Apollo application was an orbital solar telescope constructed from a surplus LM with its descent engine replaced with a telescope controlled from the ascent stage cabin, the landing legs removed and four "windmill" solar panels extending from the descent stage quadrants. This would have been launched on an uncrewed Saturn IB, and docked with a crewed [[Apollo command and service module|command and service module]], named the Apollo Telescope Mission (ATM).

This idea was later transferred to the original [[wet workshop]] design for the ''[[Skylab]]'' orbital workshop and renamed the [[Apollo Telescope Mount]] to be docked on a side port of the workshop's multiple docking adapter (MDA).<ref name=":2">{{Cite web |last=Tousey |first=R. |date=1977 |title=The SKYLAB Apollo Telescope Mount |url=https://lasco-www.nrl.navy.mil/skylab/index.php?p=content%2Fskylab_atm&utm_source=chatgpt.com |website=SKYLAB}}</ref> When Skylab changed to a "dry workshop" design pre-fabricated on the ground and launched on a Saturn V, the telescope was mounted on a hinged arm and controlled from inside the MDA.<ref name=":2" /> Only the octagonal shape of the telescope container, solar panels and the Apollo Telescope Mount name were kept, though there was no longer any association with the LM.<ref name=":3">{{Cite book |url=https://books.google.com/books?id=XDQVAAAAIAAJ |title=1969 NASA Authorization: Hearings, Second Session, on H.R. 4046, H.R. 15086 (superseded by H.R. 15856) United States. Congress. House. Committee on Science and Astronautics |date=8 February 1968 |publisher=U.S. Government Printing Office |pages=60–61}}</ref>

The [[telemetry]] subsystem of the Apollo Telescope Mount included two VHF telemetry transmitters from the Apollo Saturn IB [[launch vehicle]].<ref name=":3" /> An instrument that was attached to the ''Skylab'' was a telescope designed to photograph the solar disk in [[X-ray]] light. The imaging mirror is a prototype fabricated at the [[Marshall Space Flight Center]] in 1967.<ref>{{Cite web |title=Telescope Mirror, X-ray, Apollo Telescope Mount |url=https://airandspace.si.edu/collection-objects/telescope-mirror-x-ray-apollo-telescope-mount/nasm_A19740667000 |access-date=2024-12-18 |website=National Air and Space Museum |language=en}}</ref>

===LM Truck===
The Apollo LM Truck (also known as Lunar Payload Module) was a stand-alone LM descent stage intended to deliver up to {{convert|11000|lb|t}} of payload to the Moon for an uncrewed landing.<ref>{{Cite book |url=https://history.nasa.gov/alsj/LM23_LM_Derivatives_LMD1-13.pdf |title=APOLLO NEWS REFERENCE - LUNAR MODULE DERIVATIVES FOR FUTURE SPACE MISSIONS |publisher=Grumman}}</ref> This technique was intended to deliver equipment and supplies to a permanent crewed [[lunar base]]. As originally proposed, it would be launched on a Saturn V with a full Apollo crew to accompany it to lunar orbit and guide it to a landing next to the base; then the base crew would unload the "truck" while the orbiting crew returned to Earth.<ref>[http://www.astronautix.com/craft/apotruck.htm Apollo LM Truck on Mark Wade's Encyclopedia Astronautica] {{webarchive|url=https://web.archive.org/web/20051215210907/http://www.astronautix.com/craft/apotruck.htm |date=December 15, 2005 }} – Description of adapted LM descent stage for the uncrewed transport of cargo to a permanent lunar base.</ref> In later AAP plans, the LPM would have been delivered by an uncrewed lunar ferry vehicle.<ref>{{Cite book |url=https://history.nasa.gov/alsj/LM23_LM_Derivatives_LMD1-13.pdf |title=APOLLO NEWS REFERENCE - LUNAR MODULE DERIVATIVES FOR FUTURE SPACE MISSIONS |publisher=Grumman}}</ref>