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There are a total of 1031821 record(s) matching your query.
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Experimental aerodynamic derivatives of a sinusoidally oscillating airfoil in two-dimensional flow
Author(s): Halfman, Robert L
Abstract: Experimental measurements of the aerodynamic reactions on a symmetrical airfoil oscillating harmonically in a two-dimensional flow are presented and analyzed. Harmonic motions include pure pitch and pure translation, for ...
NASA Center: NASA (non Center Specific)
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21434; Document ID: 19930092144; Report Number: NACA-TR-1108
Analysis of thrust augmentation of turbojet engines by water injection at compressor inlet including charts for calculating compression processes with water injection
Author(s): Wilcox, E Clinton; Trout, Arthur M
Abstract: A psychrometric chart having total pressure (sum of partial pressures of air and water vapor) as a variable, a Mollier diagram for air saturated with water vapor, and charts showing the thermodynamic properties of various ...
NASA Center: Glenn Research Center
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21353; Document ID: 19930092063; Report Number: NACA-TR-1006
Applications of system identification methods to the prediction of helicopter stability, control and handling characteristics
Author(s): Padfield, G. D.; Duval, R. K.
Abstract: A set of results on rotorcraft system identification is described. Flight measurements collected on an experimental Puma helicopter are reviewed and some notable characteristics highlighted. Following a brief review of ...
NASA Center: Ames Research Center
Publication Year: 1982
Added to NTRS: 2009-01-14
Accession Number: 82N23230; Document ID: 19820015356
The stability of the compression cover of box beams stiffened by posts
Author(s): Seide, Paul; Barrett, Paul F
Abstract: An investigation is made of the buckling of the compression cover of post-stiffened box beams subjected to end moments. Charts are presented for the determination of the minimum post axial stiffnesses and the corresponding ...
NASA Center: Langley Research Center
Publication Year: 1951
Added to NTRS: 2009-01-14
Accession Number: 93R21384; Document ID: 19930092094; Report Number: NACA-TR-1047
Spacelab user implementation assessment study. (Software requirements analysis). Volume 2: Technical report
Abstract: The engineering analyses and evaluation studies conducted for the Software Requirements Analysis are discussed. Included are the development of the study data base, synthesis of implementation approaches for software ...
NASA Center: NASA (non Center Specific)
Publication Year: 1976
Added to NTRS: 2009-01-14
Accession Number: 76N24340; Document ID: 19760017252; Report Number: NASA-CR-144966-2, SD-76-SA-0028-2
Analysis of the effects of wing interference on the tail contributions to the rolling derivatives
Author(s): Michael, William H , Jr
Abstract: An analysis of the effects of wing interference on the tail contributions to the rolling stability derivatives of complete airplane configurations is made by calculating the angularity of the air stream at the vertical tail ...
NASA Center: Langley Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21420; Document ID: 19930092130; Report Number: NACA-TR-1086
Theoretical and experimental investigation of additive drag
Author(s): Sibulkin, Merwin
Abstract: The significance of additive drag is discussed and equations for determining its approximate value are derived for annular and open-nose inlets. Charts are presented giving values of additive drag coefficient over a range of ...
NASA Center: Glenn Research Center
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R20272; Document ID: 19930090982; Report Number: NACA-TR-1187
Dispositional logic and commonsense reasoning
Author(s): Zadeh, L. A.
Abstract: No Abstract Available
NASA Center: NASA (non Center Specific)
Publication Year: 1988
Added to NTRS: 2009-01-14
Accession Number: 91N71352; Document ID: 19910073797
Transonic flow past a wedge profile with detached bow wave
Author(s): Vincenti, Walter G; Wagoner, Cleo B
Abstract: A theoretical study has been made of the aerodynamic characteristics at zero angle of attack of a thin, doubly symmetrical double-wedge profile in the range of supersonic flight speed in which the bow wave is detached. The ...
NASA Center: Ames Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R20378; Document ID: 19930091088; Report Number: NACA-TR-1095
The First Development of Human Factors Engineering Requirements for Application to Ground Task Design for a NASA Flight Program
Author(s): Dischinger, H. Charles, Jr.; Stambolian, Damon B.; Miller, Darcy H.
Abstract: The National Aeronautics and Space Administration has long applied standards-derived human engineering requirements to the development of hardware and software for use by astronauts while in flight. The most important source ...
NASA Center: Kennedy Space Center, Marshall Space Flight Center
Publication Year: 2008
Added to NTRS: 2009-01-14
Document ID: 20090001286; Report Number: 08ICES-0279
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