Skylab 4 Launches upon Saturn IB

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The Saturn IB was used between 1973 and 1975 for three manned Skylab flights, and one Apollo-Soyuz Test Project flight. This final production run did not have alternating black and white S-IB stage tanks, or vertical stripes on the S-IVB aft tank skirt, which were present on the earlier vehicles. Since LC-34 and 37 were inactive by then, these launches utilized Kennedy Space Center's LC-39B. Mobile Launcher Platform No. 1 was modified, adding an elevated platform known as the "milkstool" to accommodate the height differential between the Saturn IB and the much larger Saturn V. This enabled alignment of the Launch Umbillical Tower's access arms to accommodate crew access, fueling, and ground electrical connections for the Apollo spacecraft and S-IVB upper stage. The tower's second stage access arms were modified to service the S-IB first stage.

This image is of Skylab 4.

Print is available in 19" x 24" (48 x 61 cm) and 29" x 36" (74 x 91 cm), and is printed on premium photo grade paper. Dimensions are approximate.