Editing STS-4 (section)

== Crew ==
{{Spaceflight crew
|terminology = Astronaut

|position1   = Commander
|crew1_up    = [[Ken Mattingly]]
|flights1_up = Second

|position2   = Pilot
|crew2_up    = [[Henry Hartsfield]]
|flights2_up = First
}}

STS-4, being the last test flight of the Space Shuttle, was also the last to carry a crew of two astronauts. Commander Ken Mattingly had previously flown as [[Astronaut ranks and positions|Command Module Pilot]] on [[Apollo 16]], and was also the original Command Module Pilot for [[Apollo 13]] before being replaced by his backup, [[Jack Swigert]], after being exposed to [[German measles]].<ref>{{Cite web |date=2020-04-02 |title=50 Years Ago: Apollo 13 and German Measles |url=https://www.nasa.gov/history/50-years-ago-apollo-13-and-german-measles/ |access-date=2024-09-26 |website=NASA}}</ref> Hartsfield was a rookie astronaut who had transferred to NASA in 1969 after the cancellation of the [[United States Air Force|Air Force's]] [[Manned Orbiting Laboratory]] (MOL) program. He had previously served as a [[Flight controller|capsule communicator (CAPCOM)]] on [[Apollo 16]], all three [[Skylab]] missions, and [[STS-1]]. Both men had graduated from [[Auburn University]], the only time an entire Space Shuttle flight crew were graduates of the same university. 

=== Backup crew ===
From STS-4 onwards, NASA halted the appointment and training of complete backup flight crews. Instead, individual flight crew members were assigned backups who could take their place within the prime crew. The decision on whether to appoint a reserve crew member was made on a per-flight basis by flight management teams at [[Johnson Space Center]]. Consequently, the last NASA flight to have a full-time backup crew was [[STS-3]].

=== Support crew ===
* [[Roy D. Bridges Jr.]] (entry CAPCOM)
* [[Michael Coats|Michael L. Coats]]
* [[S. David Griggs]] (ascent CAPCOM)
* [[George Nelson (astronaut)|George D. Nelson]]
* [[Brewster H. Shaw]]

=== Crew seat assignments ===
{| class="wikitable" style="text-align:center"
! Seat<ref>{{cite web|title=STS-4|url=http://spacefacts.de/mission/english/sts-4.htm|publisher=Spacefacts|access-date=February 26, 2014}}</ref> 
! Launch
! Landing
|rowspan=8| [[File:Space Shuttle seating plan.svg|150px]]<br />Seats 1–4 are on the flight deck.<br />Seats 5–7 are on the mid-deck.
|-
! 1
|colspan=2| Mattingly
|-
! 2
|colspan=2| Hartsfield
|-
! 3
|colspan=2 style="background-color:lightgray"| ''Unused''
|-
! 4
|colspan=2 style="background-color:lightgray"| ''Unused''
|-
! 5
|colspan=2 style="background-color:lightgray"| ''Unused''
|-
! 6
|colspan=2 style="background-color:lightgray"| ''Unused''
|-
! 7
|colspan=2 style="background-color:lightgray"| ''Unused''
|}