This paper presents a light, but reverent, discussion of some of the Douglas operational experiences on the Saturn V/S-IVB stage. Certain relevant aspects of earlier work on the Thor intermediate range ballistic missile, the Saturn I S-IV stage, and the Uprated Saturn I S-IVB stage are also discussed.; Aeronautic and Space Engineering and Manufacturing Meeting, Los Angeles, Calif., Oct. 7 - 11, 1968.