UAH Archives, Special Collections, and Digital Initiatives

Browse Items (8239 total)

  • River Canal Boat.jpg

    The Sylvanian Families River Canal Boat offers a delightful miniature scene of leisurely life on the water. This charming boat features living quarters with windows, a deck area with laundry hanging out to dry, and ample space for Sylvanian Families to relax and enjoy a scenic journey. Canal boats are a significant part of British waterways history and culture, originally used for transporting goods and now enjoyed for peaceful holidays. This playset beautifully captures the essence of canal life, reflecting a slower pace and appreciation for the countryside that is often associated with British traditions.  
  • comparadvcoolingtech_071207135801.pdf

    The document is a technical paper for Astronautics and Aerospace Engineering Magazine.The copy has handwritten notes that appear to be for revisions. The abstract states "In the early days of rocket propulsion, two primary methods were employed for cooling the walls of thrust chambers. These were uncooled metal chambers where the heat sink capacity of the chamber and nozzle wall materials limited the operating duration, and regeneratively cooled chambers where one of the propellants was circulated in a cooling jacket which constituted the chamber wall. Today, there are at least fourteen different methods with variations for cooling the combustion devices and nozzles of liquid propellant, solid propellant, and/or nuclear rocket propulsion engines. It is the intent of this paper to examine these methods, to describe for each the useful range of operating conditions, as well as present and likely future applications, to define their limitations and associated problems. Emphasis is primarily placed on liquid rocket engines."
  • Rockengiselecrit_042908141859.pdf

    This paper considers many of the factors and criteria which have to be considered and evaluated when selecting a specific rocket engine for a given vehicle application. The lists of criteria can be helpful as checklists in design and systems engineering of a rocket propulsion device. About ten different applications are examined to illustrate the relative importance of some of these selection criteria. There will be groupings of our major types of criteria; namely, performance, operational, economic and so-called judgment criteria. In many cases the last three categories are equally or more important than the performance criteria in selecting one of several rocket engines for a specific application. The actual selection usually is a compromise to make the rocket engine responsive to several important criteria.
  • compflowcont.pdf.pdf

    Presented are the results of a study comparing four proposed control systems for the first stage flight of Saturn V launch vehicles. The primary basis of comparison is the effect on structural loads, using the bending moments at three stations as load indicators. Two of the systems sense only the vehicle attitude and attitude rate, while the other two systems also sense the lateral acceleration. A yaw plane wind response analysis, including rigid body translation, rigid body rotation, four bending modes, five slosh modes, and a non ideal control system, was performed. The winds used in the study were the Marshall synthetic profile and three selected Jimsphere-measured real wind profiles. Load relief obtained from the addition of accelerometer feedback in the control loop amounted to about 10 percent at maximum bending moment station. In view of predicted structural capabilities of the vehicle, this reduction in loads was not considered sufficient to offset the added complexity and the slight reduction in rigid body stability .
  • http://dkdayton.net/roberts/images/r07/pdfs/r07_03-02.pdf

    This section contains a report booklet written by Christine P. Sumner. Contains numerous census lists that cover death-rates, land-lists and assessments.
  • http://dkdayton.net/roberts/images/r02g/pdfs/r02g07-26.pdf
  • http://dkdayton.net/roberts/images/r02g/pdfs/r02g07-05.pdf
  • TombInscriptionRecreation.png

    Recreation of Katherine Parr's tomb inscription.
  • ParrHairLocket.png

    Locket belonging to Katherine Parr containing perfectly preserved strands of her hair that have allowed us to confirm her hair texture, type, and color. Although the locket was stolen from her grave during a violent robbery that destroyed what remained of her body, the item was eventually returned to Sudeley Castle.
  • ParrLocketToothEmblem.png

    The tooth, necklace, and emblem of Katherine Parr that were stolen from her grave during a violent robbery that destroyed what remained of her body. The items were eventually returned to Sudeley Castle.