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There are a total of 1031821 record(s) matching your query.
Sorted by: Date Added To NTRS in Descending order
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An analysis of the effects of aeroelasticity on static longitudinal stability and control of a swept-wing airplane
Author(s): Skoog, Richard B
Abstract: A theoretical analysis has been made of the effects of aeroelasticity on the static longitudinal stability and elevator angle required for balance of an airplane. The analysis is based on the familiar stability equation ...
NASA Center: Ames Research Center
Publication Year: 1957
Added to NTRS: 2009-01-14
Accession Number: 93R21583; Document ID: 19930092293; Report Number: NACA-TR-1298
An analysis of pressure studies and experimental and theoretical downwash and sidewash behind five pointed-tip wings at supersonic speeds
Author(s): Boatright, William B
Abstract: Flow-angle and pressure surveys behind five, thin, pointed-tip wings of varying plan form have been made at Mach numbers 1.62 and 2.41. Schlieren studies at a Mach number 1.93 for the same five plan-form wings were made to ...
NASA Center: Langley Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21652; Document ID: 19930092362; Report Number: NACA-TR-1380
Flight investigation of the effectiveness of an automatic aileron trim control device for personal airplanes
Author(s): Phillips, William H; Kuehnel, Helmut A; Whitten, James B
Abstract: A flight investigation to determine the effectiveness of an automatic aileron trim control device installed in a personal airplane to augment the apparent spiral stability has been conducted. The device utilizes a rate-gyro ...
NASA Center: Langley Research Center
Publication Year: 1957
Added to NTRS: 2009-01-14
Accession Number: 93R21588; Document ID: 19930092298; Report Number: NACA-TR-1304
Effect of variable viscosity and thermal conductivity on high-speed slip flow between concentric cylinders
Author(s): Lin, T C; Street, R E
Abstract: Schamberg was the first to solve the differential equations of slip flow, including the Burnett terms, for concentric circular cylinders assuming constant coefficients of viscosity and thermal conductivity. The problem is ...
NASA Center: NASA (non Center Specific)
Publication Year: 1954
Added to NTRS: 2009-01-14
Accession Number: 93R21490; Document ID: 19930092200; Report Number: NACA-TR-1175
Elliptic cones alone and with wings at supersonic speed
Author(s): Jorgensen, Leland H
Abstract: To help fill the gap in the knowledge of aerodynamics of shapes intermediate between bodies of revolution and flat triangular wings, force and moment characteristics for elliptic cones have been experimentally determined for ...
NASA Center: Ames Research Center
Publication Year: 1958
Added to NTRS: 2009-01-14
Accession Number: 93R21649; Document ID: 19930092359; Report Number: NACA-TR-1376
Effect on longitudinal stability and control characteristics of a Boeing B-29 airplane of variations in stick-force and control-rate characteristics obtained through use of a booster in the elevator-control system
Author(s): Mathews, Charles W; Talmage, Donald B; Whitten, James B
Abstract: A longitudinal stability and control characteristics of a Boeing B-29 airplane have been measured with a booster incorporated in the elevator-control system. Tests were made to determine the effects on the handling qualities ...
NASA Center: Langley Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21411; Document ID: 19930092121; Report Number: NACA-TR-1076
The application of the statistical theory of extreme values to gust-load problems
Author(s): Press, Harry
Abstract: An analysis is presented which indicates that the statistical theory of extreme values is applicable to the problems of predicting the frequency of encountering the larger gust loads and gust velocities for both specific ...
NASA Center: Langley Research Center
Publication Year: 1950
Added to NTRS: 2009-01-14
Accession Number: 93R20242; Document ID: 19930090952; Report Number: NACA-TR-991
Automatic control systems satisfying certain general criterions on transient behavior
Author(s): Boksenbom, Aaron S; Hood, Richard
Abstract: An analytic method for the design of automatic controls is developed that starts from certain arbitrary criterions on the behavior of the controlled system and gives those physically realizable equations that the control ...
NASA Center: Glenn Research Center
Publication Year: 1952
Added to NTRS: 2009-01-14
Accession Number: 93R21403; Document ID: 19930092113; Report Number: NACA-TR-1068
Experimental Studies of the Aerothermal Characteristics of the Project Orion CEV heat Shield in High Speed Transitional and Turbulent Flows
Author(s): Wadhams, T.P.; MacLean, M.; Holden, M.S.; Cassady, A.M.
Abstract: An experimental program has been completed by CUBRC exploring laminar, transitional, and turbulent flows over a 7.0% scale model of the Project ORION CEV geometry. This program was executed primarily to answer questions ...
NASA Center: Johnson Space Center
Publication Year: 2009
Added to NTRS: 2009-01-14
Document ID: 20090001232
Mission Assessment of the Faraday Accelerator with Radio-frequency Assisted Discharge (FARAD)
Author(s): Dankanich, John W.; Polzin, Kurt A.
Abstract: Pulsed inductive thrusters have typically been considered for future, high-power, missions requiring nuclear electric propulsion. These high-power systems, while promising equivalent or improved performance over ...
NASA Center: Marshall Space Flight Center
Publication Year: 2008
Added to NTRS: 2009-01-14
Document ID: 20090001283
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