a17_v_bw_o_n (107-KSC-72P-303)
“The Saturn V third stage for the Apollo 17 launch vehicle was erected and mated with the second stage today in preparation for the final manned lunar exploration mission in December. The launch of Apollo 17 is scheduled for 9:38 p.m. December 6.”
Note the Launcher Umbilical Tower (LUT) visible in the upper right ‘quadrant’ of the image, and notably, its clearly identified/labeled swing/access arm…no. 6, aka “S-IVB Aft (inflight)”.
Per the fantastic breakout of the LUT & its swing/access arms, at the wonderful “Apollo Maniacs” website, per J.L. Pickering (with photos AND diagrams!!!):
“Arm No.6 : S-IVB Aft (inflight)
Level 220 : vehicle station 2760.000
Provides 1 LH₂ injection, 1 LOX injection, 6 electricals, 11 pneumatics and equipment cooling, 1 air conditioning interface. Retraction of the umbilical connector is the same system as the arm 7 (S-IVB Forward). It also has a line handling device that protects the cables during the pull-in operation. It takes up to 7.7 seconds to disconnect the arm.”
www.hq.nasa.gov/office/pao/History/alsj/a17/ap17-KSC-72P-...
Credit: J.L. Pickering/Apollo Image Gallery/ALSJ
a17_v_bw_o_n (107-KSC-72P-303)
“The Saturn V third stage for the Apollo 17 launch vehicle was erected and mated with the second stage today in preparation for the final manned lunar exploration mission in December. The launch of Apollo 17 is scheduled for 9:38 p.m. December 6.”
Note the Launcher Umbilical Tower (LUT) visible in the upper right ‘quadrant’ of the image, and notably, its clearly identified/labeled swing/access arm…no. 6, aka “S-IVB Aft (inflight)”.
Per the fantastic breakout of the LUT & its swing/access arms, at the wonderful “Apollo Maniacs” website, per J.L. Pickering (with photos AND diagrams!!!):
“Arm No.6 : S-IVB Aft (inflight)
Level 220 : vehicle station 2760.000
Provides 1 LH₂ injection, 1 LOX injection, 6 electricals, 11 pneumatics and equipment cooling, 1 air conditioning interface. Retraction of the umbilical connector is the same system as the arm 7 (S-IVB Forward). It also has a line handling device that protects the cables during the pull-in operation. It takes up to 7.7 seconds to disconnect the arm.”
www.hq.nasa.gov/office/pao/History/alsj/a17/ap17-KSC-72P-...
Credit: J.L. Pickering/Apollo Image Gallery/ALSJ