TY - BOOK ED - Washington: National Aeronautics and Space Administration TI - - PY - 1969/// CY - Washington, D. C. PB - National Aeronautics and Space Administration N1 - NASA TN D-4891: Prediction of lift and drag for slender sharp-edge delta wings in ground proximity by Charles H. Fox 33p; NASA TN D-4892: Rotational and vibrational temperature measurements in the 12-inch hypersonic ceramic heated tunnel by John C. Hope 35p; NASA TN D-4893: Analysis of commutated networks employing feedback circuits by Michael T. Borelli 85p; NASA TN D-8994: Blast shields testing by Walter V. Medenica 59p; NASA TN D-4895: Optimum design of communication links with noisy phase reference by William E. Zurubek 22p; NASA TN D-4896: Response develope- A global description of three axix large angle spacecraft attitutude control systems by George Meyer 31p; NASA TN D-4897: Transient solidification outside a cooled pipe application to a solar brayton heat receiver by Wellington W. Hu 30p; NASA TN D-4898: Design and analysis of a modular servoamplifier for fast response electrhydrraulic control systems by John R. Zeller 20p; NASA TN D-4899: Prediction of thermodynamic effects of developed gavitation based on liquid hydrogen and freon-114 data in scaled ventures by Royce D. Moore 22p ER -