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"Communication-System Blackout During Reentry of Large Vehicles".
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. -
"Aerospace Vehicle Simulation and Checkout."
Paper by J. W. Moore and J. R. Mitchell, Quality & Reliability Assurance Laboratory, Marshall Space Flight Center, and H. H. Trauboth, Computation Laboratory, Marshall Space Flight Center. The paper summary notes, "The advancement of the space age into increasingly complex and ambitious missions requiring the development and operation of more sophisticated and intricate launch vehicles has generated numerous problem areas. The purpose of this paper is to define the Aerospace Vehicle Simulation; discuss the relationship of this simulation to the major problem areas of checkout; describe the development and implementation of this simulation system; indicate multidiscipline applications to present and future programs." -
"Contracts for Saturn Upper Stages S-IV and S-V".
Details contracts for upper stages of Saturn IV and Saturn V and includes illustrative appendixes. Archive copy is a photocopy. -
"Digital Simulation of an Aerospace Vehicle."
The rapid development of computer technology and the creation of new engineering oriented languages has established that general purpose digital computers are now extremely suitable to perform simulation of large scale physical systems. With Aerospace Vehicle Simulation (AVS), an effort has been undertaken at MSFC to simulate continuous and discrete dynamics of an aerospace vehicle and its ground support equipment on a large digital computer. This simulation produces a copy of the physical vehicle configuration and its functions in the form of a large scale mathematical model in the computer. AVS will be an essential part of an integrated information system which can be used by several laboratories and offices at MSFC for the design, checkout, test, and management of aerospace vehicles. -
Mobile AIDS Support Services Flyer
A flyer for the Mobile AIDS Support Services (MASS) organization in Mobile, Alabama that explains the different kind of help they offered people with AIDS. -
Roberts, Baker L. Accounts, Correspondence, and Other, 1879 - 1916
Contains correspondence, receipts, accounting documents and other business documents relating to Baker L. Roberts. The majority of these are hand-written. -
Invoice from Monroe Street Paving.
This invoice outlines the items purchased by William Thomas Hutchens, interest on the items, principal, and total balance. The invoice runs from 1926 to 1933. The back includes various handwritten items. -
