UAH Archives, Special Collections, and Digital Initiatives

Browse Items (8023 total)

  • rptno24fragge_082707112230.pdf

    Memo to Lee Cropp, I-RM-D concerning security classification.
  • cleandconcon_071107110215.pdf

    The document is a paper describing contamination cleaning methods and advocating for further developments in the field. Tables and figures are included at the end of the paper. The figures include a comparison of Saturn V with Saturn I and Saturn IB and cross-sections of the Saturn C-5, S-IC stage fuel tank assembly and oxidizer tank assembly.
  • Nortamerrockjul1169_010711121426.pdf

    A news article detailing the scheduled launch for the Apollo 11. "Eagle" is the name of the lunar module and "Columbia" is the name of the service module.
  • commprobrelaluna_022807133241.pdf

    "This technical note concerns some of the problems encountered with the landing of a payload on the moon. The main problem areas such as guidance, velocity control and impact considerations are discussed. Although no final conclusions or designs are intended, it is hoped that the material presented will serve as a guide for future detailed work."
  • commbulkdraw.jpg.jpg

    8 x 10 inch black and white photograph; This is a cutaway drawing of the bulkhead with information about the LH2 tank skin, insulation, Aft LOX bulkhead, 2014-T6 alum skin and fiberglass core. Part of an envelope with photos accompanying C. E. Cataldo paper "Materials in Space Exploration."
  • freedomadober2_022607111422.pdf

    Includes bibliographical references.; Original format: paperback book (42 pages); Cover title: Resources for freedom : the outlook of energy resources, volume III. Contains plans and analyses of potential future energy sources.
  • comsysbladurreeoflarveh_031808114618.pdf

    This paper was published in the Proceedings of the IEEE, volume 55, number 5, May 1967.; ABSTRACT: Much of the theoretical research on reentry blackout is in a format difficult for the communications design engineer to use in his system analysis. This paper derives simplified equations for the average sheath power loss that may be added (in dB) to the usual space loss to obtain an approximate total propagation loss. The plasma and sheath properties are discussed in detail but largely without supporting mathematics, in order to give the design engineer a better understanding of the overall problem. For the same reason and to provide insight into the final results, the average radiated power is found, using both intuitive and rigorous techniques. Several graphs of plasma properties are included in the development as an aid to numerical computation, and results are compared with the work of other authors.
  • SkywSpacDiviVolXXIX17_052410122936.pdf

    A news article detailing the winners of scholarships from a competition held by Space Division. This contest was held for the children of Space Division employees.
  • compfaileffeonsystananalmode_062007111540.pdf

    Prepared by R. L. Parkhill, Section Chief, Saturn S-IVB Reliability Analysis and J. Pauperas JR., Asst. Section Chief, Saturn S-IV Reliability Analysis. Presented to the 4th Annual Seminar on Reliability for Space Vehicles, Los Angeles, California, December 6, 1963. This paper presents techniques originated by Douglas Engineering working under NASA contract NAS7-1. Prepared as a record of the study conducted for the Administrative Engineer on the Department Overhead Account No. 9703.; SUMMARY: In today's complex systems, such as Saturn, many traditional reliability analysis concepts are not acceptable. Because of time and budget restrictions, and the requirement to provide a "man rated" space vehicle, the Douglas Saturn Engineering Reliability Section has developed a new analytical approach; it is called "criticality ranking". It is a "totem pole" of components whose single failure may lead to system loss. "Criticality ranking" is one of the results of an analytical model which encompasses failure effect and reliability prediction. This paper describes this analytical model, discusses some of the techniques and ground rules, and presents examples. A discussion of the application of the results is also included.
  • Compcontpowe_042908131740.pdf

    This paper describes a real-time digital computer program that controls the application of electrical power to the S-IVB stage of the Saturn vehicle at Cape Kennedy, Florida. Douglas Aircraft Company, the S-IVB stage manufacturer, provided NASA with the program requirements relative to the energizing sequence, voltage and current measurement tolerances, and vehicle system operational tests. International Business Machines Corporation provided NASA with the computer program to satisfy the task requirements. The program conjoined the components of the Electrical Support Equipment (two RCA 110A computers and control and instrumentation devices) into a closed loop system. The supporting operating system program by IBM is described.