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A cutaway illustration of Saturn I launch vehicle characteristics: The Saturn I, first of the Saturn launch vehicles' family, is a two-stage vehicle with a low-earth-orbit payload capability of approximately 25,000 pounds. The research and development program was plarned in two phases or blocks; one for first stage development (Block I) and the second for first and second stage development (Block II). The S-I (first) stage consisted of a cluster of nine propellant tanks and eight H-1 engines built by Rocketdyne, yeilding a total thrust of 1,500,000 pounds. The second stage identified as S-IV, …
