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Thrust Stand Evaluation Of Engine Performance Improvement Algorithms In An F 15 Airplane
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Book Synopsis Thrust Stand Evaluation of Engine Performance Improvement Algorithms in an F-15 Airplane by : Timothy R. Conners
Download or read book Thrust Stand Evaluation of Engine Performance Improvement Algorithms in an F-15 Airplane written by Timothy R. Conners and published by . This book was released on 1992 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CF6 Jet Engine Performance Improvement by : W. A. Fasching
Download or read book CF6 Jet Engine Performance Improvement written by W. A. Fasching and published by . This book was released on 1979 with total page 135 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Evaluation of an Engine Performance Optimization Algorithm by : H. H. Lambert
Download or read book Preliminary Flight Evaluation of an Engine Performance Optimization Algorithm written by H. H. Lambert and published by . This book was released on 1991 with total page 28 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Preliminary Flight Evaluation of an Engine Performance Optimization Algorithm by :
Download or read book Preliminary Flight Evaluation of an Engine Performance Optimization Algorithm written by and published by . This book was released on 1991 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Evaluation of a Simplified Gross Thrust Calculation Technique Using an F100 Turbofan Engine in an F-15 Airplane by : Frank J. Kurtenbach
Download or read book Flight Evaluation of a Simplified Gross Thrust Calculation Technique Using an F100 Turbofan Engine in an F-15 Airplane written by Frank J. Kurtenbach and published by . This book was released on 1981 with total page 26 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Performance Improvements of an F-15 Airplane with an Integrated Engine-flight Control System by :
Download or read book Performance Improvements of an F-15 Airplane with an Integrated Engine-flight Control System written by and published by . This book was released on 1988 with total page 16 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Assessment of the Onboard Propulsion System Model for the Performance Seeking Control Algorithm on an F-15 Aircraft by : John S. Orme
Download or read book Flight Assessment of the Onboard Propulsion System Model for the Performance Seeking Control Algorithm on an F-15 Aircraft written by John S. Orme and published by . This book was released on 1995 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CF6 Jet Engine Performance Improvement by : W. A. Fasching
Download or read book CF6 Jet Engine Performance Improvement written by W. A. Fasching and published by . This book was released on 1980 with total page 212 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis CF6 Jet Engine Performance Improvement by : W. A. Fasching
Download or read book CF6 Jet Engine Performance Improvement written by W. A. Fasching and published by . This book was released on 1982 with total page 262 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Flight Evaluation of an Extended Engine Life Mode on an F-15 Airplane by :
Download or read book Flight Evaluation of an Extended Engine Life Mode on an F-15 Airplane written by and published by . This book was released on 1992 with total page 14 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Validation of the Gas Generator Method of Calculating Jet-engine Thrust and Evaluation of XB-70-1 Airplane Engine Performance at Ground Static Conditons by : Henry H. Arnaiz
Download or read book Validation of the Gas Generator Method of Calculating Jet-engine Thrust and Evaluation of XB-70-1 Airplane Engine Performance at Ground Static Conditons written by Henry H. Arnaiz and published by . This book was released on 1970 with total page 52 pages. Available in PDF, EPUB and Kindle. Book excerpt: Deficiencies in established techniques of measuring aircraft thrust in flight led to the application of the gas generator method of calculating engine thrust to the XB-70-1 airplane. A series of tests on a ground static-thrust stand [were]performed on the airplane to establish at ground static conditions the accuracy of this method, to measure the installed thrust of the YJ93-GE-3 engine, and to determine the effect of instrumentation errors and nonuniform flows at the engine compressor face on the thrust calculation. Tests with an aerodynamically choked inlet, an opened inlet-bypass system, and varying combinations of operating engines were also conducted. Results showed that the accuracy of the gas generator method was ±2 percent for the normal operation of the XB-70-1 airplane at ground static conditions and for the upper 70 percent of the engine's throttle range. They also showed that the effect of individual instrument errors on the thrust calculation was reduced because of the large number of measurements and that abnormally high inlet flow distortion affects the thrust calculation. When corrected for inlet losses, the installed thrust of the YJ93-GE-3 engine agreed favorably with the engine manufacturer's uninstalled estimated thrust for all power settings except those at the low end.--P. [i].
Author :National Aeronautics and Space Administration (NASA) Publisher :Createspace Independent Publishing Platform ISBN 13 :9781722239824 Total Pages :32 pages Book Rating :4.2/5 (398 download)
Book Synopsis Flight Evaluation of an Extended Engine Life Mode on an F-15 Airplane by : National Aeronautics and Space Administration (NASA)
Download or read book Flight Evaluation of an Extended Engine Life Mode on an F-15 Airplane written by National Aeronautics and Space Administration (NASA) and published by Createspace Independent Publishing Platform. This book was released on 2018-07-03 with total page 32 pages. Available in PDF, EPUB and Kindle. Book excerpt: An integrated flight and propulsion control system designed to reduce the rate of engine deterioration was developed and evaluated in flight on the NASA Dryden F-15 research aircraft. The extended engine life mode increases engine pressure ratio while reducing engine airflow to lower the turbine temperature at constant thrust. The engine pressure ratio uptrim is modulated in real time based on airplane maneuver requirements, flight conditions, and engine information. The extended engine life mode logic performed well, significantly reducing turbine operating temperature. Reductions in fan turbine inlet temperature of up to 80 F were obtained at intermediate power and up to 170 F at maximum augmented power with no appreciable loss in thrust. A secondary benefit was the considerable reduction in thrust-specific fuel consumption. The success of the extended engine life mode is one example of the advantages gained from integrating aircraft flight and propulsion control systems. Myers, Lawrence P. and Conners, Timothy R. Armstrong Flight Research Center RTOP 533-02-36...
Book Synopsis The Measurement of Engine Thrust in an Altitude Test Facility by : E-33 In Flight Propulsion Measurement Committee
Download or read book The Measurement of Engine Thrust in an Altitude Test Facility written by E-33 In Flight Propulsion Measurement Committee and published by . This book was released on 2015 with total page 0 pages. Available in PDF, EPUB and Kindle. Book excerpt: This report covers engine tests performed in Altitude Test Facilities (ATFs) with the primary purpose of determining steady state thrust at simulated altitude flight conditions as part of the in-flight thrust determination process. As such it is complementary to AIR1703 and AIR5450, published by the SAE E-33 Technical Committee. The gross thrust determined using such tests may be used to generate other thrust-related parameters that are frequently applied in the assessment of propulsion system performance. For example: net thrust, specific thrust, and exhaust nozzle coefficients.The report provides a general description of ATFs including all the major features. These are: Test cell air supply system. This controls the inlet pressure and includes flow straightening, humidity and temperature conditioning. Air inlet duct and slip joint. Note that the report only covers the case where the inlet duct is connected to the engine, not free jet testing. Thrust stand force measurement system Test cell Cell exhaust system Measurement systemThe report provides detailed technical information on how the facilities are operated, including: Program planning guidelines Optimization of the tests Setting and control of flight conditions Assessment of the dataA technical discussion provides the underlying physics for: Air mass flow determination Determination of the conditions in the inlet duct and slip joint Derivation of thrust and related parameters Correction of data to nominal flight conditions Measurement uncertaintyThe initial issue of this report primarily address ATF testing of engines intended for use on subsonic, transport aircraft. Future revisions to the report will include greater content relevant to the testing of engines for supersonic aircraft, including the wider and higher flight envelopes associated with such aircraft and the technical issues raised by these flight conditions. The aim of the document is to assemble and record the current knowledge of the use of an Altitude Test Facility (ATF) in support of In-Flight Thrust Determination (IFTD). There is a particular need to identify and understand the defined test processes that have the greatest influence on the accuracy of the result. The document will address the key concerns and recommend best practices for optimizing them.
Book Synopsis Improving Algorithmic Efficiency of Aircraft Engine Design for Optimal Mission Performance by : Paul T. Millhouse
Download or read book Improving Algorithmic Efficiency of Aircraft Engine Design for Optimal Mission Performance written by Paul T. Millhouse and published by . This book was released on 1998-03-01 with total page 153 pages. Available in PDF, EPUB and Kindle. Book excerpt: Automated techniques for selecting jet engines that minimize overall fuel consumption for a given aircraft mission have recently been developed. However, the current techniques lack the efficiency required by Wright Laboratories. Two noted dependencies between turbine engine fan pressure ratio, bypass ratio, high pressure compressor pressure ratio and overall engine mass flow allows for a reduction in the number of independent design variables searched in the optimization process. Additionally, through the use of spatial statistics (specifically kriging estimation), it is possible to significantly reduce the number of time consuming response function evaluations required to obtain an optimal combination of engine parameters. A micro Genetic Algorithm (microGA) is employed to perform the non linear optimization process with these two computation saving techniques. Optimal engine solutions were obtained. in 25 percent of the time required by previous automated search algorithms.
Book Synopsis Subsonic Flight Test Evaluation of a Propulsion System Parameter Estimation Process for the F100 Engine by : John S. Orme
Download or read book Subsonic Flight Test Evaluation of a Propulsion System Parameter Estimation Process for the F100 Engine written by John S. Orme and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Subsonic Flight Test Evaluation of a Performance Seeking Control Algorithm on an F-15 Airplane by : Glenn B. Gilyard
Download or read book Subsonic Flight Test Evaluation of a Performance Seeking Control Algorithm on an F-15 Airplane written by Glenn B. Gilyard and published by . This book was released on 1992 with total page 24 pages. Available in PDF, EPUB and Kindle. Book excerpt:
Book Synopsis Scientific and Technical Aerospace Reports by :
Download or read book Scientific and Technical Aerospace Reports written by and published by . This book was released on 1995 with total page 542 pages. Available in PDF, EPUB and Kindle. Book excerpt:
