Four disbound engineering reports regarding the Skylab SA-513 spacecraft, including: a Saturn Engineering Report prepared by Boeing, entitled "Preliminary Skylab SA-513 Launch Vehicle Malfunction Flight Analysis," 8.5 x 11, approximately 180 pages, December 7, 1971, containing a summary, malfunction analysis criteria, malfunction flight analysis, and preliminary guidance presettings for malfunction flight; a Saturn Engineering Report prepared by Boeing, entitled "Skylab I (SA-513) Launch Vehicle Reference Dispersion Analysis," 8.5 x 11, approximately 92 pages, June 30, 1971, presenting the results of a dispersion analysis of the SA-513/Skylab 1 launch vehicle; a George C. Marshall Space Flight Center report entitled "Preoperational Trajectory Data for the Skylab 1 (SA-513) Launch Vehicle," 8.5 x 11, approximately 134 pages, September 17, 1972, providing a launch vehicle trajectory summary, guidance presettings summary, and computer printed trajectory listings; and a Boeing report entitled "Skylab 1 (SA-513) Launch Vehicle Flight System Dispersion Analysis, Volume I of II," 8.5 x 11, approximately 132 pages, presenting results of a dispersion analysis. Also includes a stapled 53-page packet of supplemental trajectory data prepared by Boeing's Saturn/Apollo/Skylab Division. In fine condition, with expected light signs of use.
