The Online Books Page

Books by Lawrence P. Ludwig:

Books in the extended shelves:

• Ludwig, Lawrence P.: Design study of shaft face seal with self-acting lift augmentation (National Aeronautics and Space Administration ;, 1970), also by John Zuk, Robert L. Johnson, United States National Aeronautics and Space Administration, and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Face-seal lubrication. (National Aeronautics and Space Administration ;, 1976), also by Gordon P. Allen and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Gas ingestion and sealing capacity of helical groove fluid film seal (viscoseal) using sodium and water as sealed fluids (National Aeronautics and Space Administration ;, 1966), also by Gordon P. Allen, Thomas N. Strom, and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Improved circumferential shaft seal for aircraft gear transmissions (National Aeronautics and Space Administration ;, 1973), also by Thomas N. Strom, United States National Aeronautics and Space Administration, and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: NASA TN D-4565 (National Aeronautics and Space Administration ;, 1968), also by Donald W. Wisander, Robert L. Johnson, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Ludwig, Lawrence P.: NASA TN D-4761 (National Aeronautics and Space Administration :, 1968), also by Robert L. Johnson, William R. Loomis, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Ludwig, Lawrence P.: NASA TN D-5225 (National Aeronautics and Space Administration ;, 1969), also by Robert L. Johnson, Thomas N. Strom, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Ludwig, Lawrence P.: NASA TN D-5344 (National Aeronautics and Space Administration ;, 1969), also by John Zuk, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Ludwig, Lawrence P.: NASA TN D-5345 (National Aeronautics and Space Administration ;, 1969), also by John Zuk, Patricia J. Smith, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust; US access only)
• Ludwig, Lawrence P.: NASA TN D-5744 (National Aeronautics and Space Administration ;, 1970), also by John Zuk, Robert L. Johnson, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Ludwig, Lawrence P.: NASA TN D-6384 (National Aeronautics and Space Administration ;, 1971), also by William F. Hady, Lewis Research Center, and United States National Aeronautics and Space Administration (page images at HathiTrust)
• Ludwig, Lawrence P.: New circumferential seal design concept using self-acting lift geometries (National Aeronautics and Space Administration ;, 1972), also by William F. Hady and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Performance in simulated gas turbine engine operation (National Aeronautics and Space Administration ;, 1971), also by Robert L. Johnson, United States National Aeronautics and Space Administration, and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Torque and leakage rates of various lubricated lip seal designs at a peripheral velocity of 120 feet per second (National Aeronautics and Space Administration ;, 1969), also by Robert L. Johnson, Thomas N. Strom, United States National Aeronautics and Space Administration, and Lewis Research Center (page images at HathiTrust)
• Ludwig, Lawrence P.: Vibration of shaft face seals and stabilizing effect of viscous and friction damping (National Aeronautics and Space Administration ;, 1969), also by Thomas N. Strom, John C. Hudelson, and Lewis Research Center (page images at HathiTrust)

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