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"Letter to the Vice President of the United States and White House."
This is an attempt to answer some of the questions about our national space program raised by The President in his memorandum to you dated April 20, 1961. I should like to emphasize that the following comments are strictly my own and do not necessarily reflect the official position of the National Aeronautics and Space Administration in which I have the honor to serve. -
"Library - Lost Books" list.
This lists the missing library books alphabetically by author's last name. -
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"Lilly Lake -- Monte Sano."
This photo shows a scene at Lily Lake on the grounds of Col. James O'Shaughnessy's home on Monte Sano. According to the Historic Huntsville Quarterly, the structure in the foreground of the photo is a "four-tiered vertical framework covered with ivy, and reaching an impressive height of twelve feet or so." -
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"Lion Country Safari Aug 1973."
Footage of a family trip to Georgia. Included is early footage of Zoo Atlanta, the Little White House in Warm Springs, and the Callaway Gardens.
Callaway Gardens [10:10]
Little White House at Warm Springs [08:35]
Zoo Atlanta [00:06] -
"Liquid Hydrogen Technology, J-2 Engine."
subject of the speech is the application of oxygen/hydrogen technology the 5-2 engine system. -
"Liquid Hydrogen."
Review detailing the use of liquid hydrogen in Saturn rockets. -
"Liquid Rocket Engines."
This paper presents a discussion on liquid propellant rocket engines. The first part contains a discussion on liquid propellants, including a description of various propellant types such as cryogenic, storable,bipropellant, and monopropellant. This part also points out desirable physical properties and includes a section on performance outlining the methods by which performance is calculated and shows performance for various liquid rocket propellant combinations. -
"Liquid Rocket Propellant Compatibility Testing."
Material-propellant compatibility as related to liquid rocket propulsion system design criteria is discussed and applicable test methods to derive usable design data are presented. Test methods, with emphasis on metallic materials, are discussed and the shortcomings of a number of these test methods are pointed out. These tests include static immersion tests, stress-corrosion tests, flow tests, impact tests, and tests to determine the effect of cracks and notches in metals on compatibility. A general outline for the evaluation of metallic and nonmetallic materials with respect to propellant compatibility is presented.