Browse Items (970 total)

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  "The J-2 Liquid Hydrogen Rocket Engine."

  The 5-2 high-energy liquid propellant rocket engine (~i~. l), a large engine producing 200,000 pounds of thrust at altitude conditions, burns liquid hydrogen and liquid oxygen to produce the necessary high specific impulse for practical space use. Rocketdyne, a Division of North American Aviation, Inc., is developing the engine for the George C. Marshall Space Flight Center, Xfi. The first use of the engine will be in the upper stages of the Saturn vehicles. Five engines will be used for the second, S-I1 stage of the Saturn V, and one will power the S-IVB third stage of the Saturn V and S-ISTI second stage of 'the Saturn IB; Original is a photocopy on onion skin.
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  "Space flight projects - today and tomorrow."

  NASA symposium on scientific and technical Information.
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  "Meteoroid measurements with Project Pegasus."

  Presentation at the Northeast Electronics Research and Engineering Meeting, Boston, Massachusetts, November 4, 1965. Ernest Stuhlinger, Director, Research Projects Laboratory, George C. Marshall Space Flight Center (NASA), Huntsville, Alabama.; INTRODUCTION: The prime objective of Project Pegasus is to measure, in the vicinity of the earth, the meteoroid penetration frequency in aluminum sheets of thicknesses which approach those of space capsule walls. Plans for the project were initiated at NASA in 1962 by the Office of Advanced Research and Technology and the George C. Marshall Space Flight Center. Throughout the project, members of the Langley Research Centers supported the project with experiments and advice.
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  "Letter to Dr. Keith T. Glennan."

  Letter to Kieth T. Glennan from Ernst Stuhlinger regarding a potential meeting between Glennan, Wernher von Braun Horner and Ernst himself. Attached is a required resume.
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  "Army Participation in the National Satellite and Space Program."

  This paper, which was presented at a Semi-Annual Meeting of the American Rocket Society, traces the role of the United States Army in national space activities. Incorporated in the report are photographs illustrating the evolution of the satellite and space program.
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  "A comparison of four control systems proposed for Saturn V launch vehicles."

  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 .
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  "Rocket engine selection criteria."

  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.
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  "A Comparison of Advanced Cooling Techniques for Rocket Thrust Chambers".

  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."
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  "Saturn technical information handbook. Volume III of four volumes : SA-203."

  The "Saturn Technical Information Handbook" provides up-to-date reference material to the Launch Operations Center personnel. This material shows the assembly and operation of the Saturn Vehicle components for systems analysis.; Volume II is available on the NASA Technical Reports Server (NTRS) as a PDF.
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  "Improving the Uprated Saturn I."

  This paper discusses five improved versions of the Uprated Saturn I that were studied by the Chrysler Corporation Space Division, supported by the Douglas Aircraft Corporation.