Editing Skylab (section)

=== Astronaut maneuvering equipment ===
As a technology demonstration, the crew practiced flying the [[Astronaut propulsion unit#Automatically Stabilized Maneuvering Unit (ASMU)|Automatically Stabilized Maneuvering Unit (ASMU)]] inside the spacious dome of the Orbital Workshop. Designed to enable astronauts to perform untethered movements in microgravity.<ref>{{Cite web |date=2023-07-31 |title=50 Years Ago: Second Skylab Crew Begins Record-Breaking Mission - NASA |url=https://www.nasa.gov/history/50-years-ago-second-skylab-crew-begins-record-breaking-mission/ |access-date=2024-12-10 |language=en-US}}</ref> The ASMU tests established key piloting characteristics and capability base for the [[Astronaut propulsion unit#Manned Maneuvering Unit|MMU]] systems used on the [[Space Shuttle]] missions.<ref>{{Cite report |url=https://www.sae.org/publications/technical-papers/content/861834/ |title=Role of the Manned Maneuvering Unit for the Space Station |last=Whitsett |first=C. E. |date=1986-10-01 |publisher=SAE Technical Paper |issue=861834 |location=Warrendale, PA |language=English}}</ref>