Flight Stability And Control And Performance Results From The Linear Aerospike Sr 71 Experiment Lasre Nasa Tm 1998 206565 Oct 26 1998

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Flight Stability And Control And Performance Results From The Linear Aerospike Sr 71 Experiment Lasre Nasa Tm 1998 206565 Oct 26 1998

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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1999*

Flight Stability And Control And Performance Results From The Linear Aerospike Sr 71 Experiment Lasre Nasa Tm 1998 206565 Oct 26 1998 written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999* with categories.

Flight Stability And Control And Performance Results From The Linear Aerospike Sr 71 Experiment Lasre

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Author : National Aeronautics and Space Administration (NASA)
language : en
Publisher: Createspace Independent Publishing Platform
Release Date : 2018-07-03

Flight Stability And Control And Performance Results From The Linear Aerospike Sr 71 Experiment Lasre written by National Aeronautics and Space Administration (NASA) and has been published by Createspace Independent Publishing Platform this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-07-03 with categories.

The Linear Aerospike SR-71 Experiment (LASRE) is presently being conducted to test a 20-percent-scale version of the Linear Aerospike rocket engine. This rocket engine has been chosen to power the X-33 Single Stage to Orbit Technology Demonstrator Vehicle. The rocket engine was integrated into a lifting body configuration and mounted to the upper surface of an SR-71 aircraft. This paper presents stability and control results and performance results from the envelope expansion flight tests of the LASRE configuration up to Mach 1.8 and compares the results with wind tunnel predictions. Longitudinal stability and elevator control effectiveness were well-predicted from wind tunnel tests. Zero-lift pitching moment was mispredicted transonically. Directional stability, dihedral stability, and rudder effectiveness were overpredicted. The SR-71 handling qualities were never significantly impacted as a result of the missed predictions. Performance results confirmed the large amount of wind-tunnel-predicted transonic drag for the LASRE configuration. This drag increase made the performance of the vehicle so poor that acceleration through transonic Mach numbers could not be achieved on a hot day without depleting the available fuel. Moes, Timothy R. and Cobleigh, Brent R. and Cox, Timothy H. and Conners, Timothy R. and Iliff, Kenneth W. and Powers, Bruce G. Armstrong Flight Research Center RTOP 244-33-02...

Cotton Ginnings

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Author :
language : en
Publisher:
Release Date : 1966

Cotton Ginnings written by and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1966 with Cotton gins and ginning categories.

Cotton ginned by counties.

Income Tax Treatment Of Cooperatives Patronage Refunds

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Author : Donald A. Frederick
language : en
Publisher:
Release Date : 1993

Income Tax Treatment Of Cooperatives Patronage Refunds written by Donald A. Frederick and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1993 with Agricultural industries categories.

Flight Testing The Linear Aerospike Sr 71 Experiment Lasre

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Author : Stephen Corda
language : en
Publisher:
Release Date : 1998

Flight Testing The Linear Aerospike Sr 71 Experiment Lasre written by Stephen Corda and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1998 with Aerospace planes categories.

The design of the next generation of space access vehicles has led to a unique flight test that blends the space and flight research worlds. The new vehicle designs, such as the X-33 vehicle and Reusable Launch Vehicle (RLV) are powered by linear aerospike rocket engines. Conceived of in the 1960's, these aerospike engines have yet to be flown, and many questions remain regarding aerospike engine performance and efficiency in flight. To provide some of these data before flying on the X-33 vehicle and the RLV, a spacecraft rocket engine had been flight-tested atop the NASA SR-71 aircraft as the Linear Aerospike SR-71 Experiment (LASRE). A 20 percent-scale, semispan model of the X-33 vehicle, the aerospike engine, and all the required fuel and oxidizer tanks and propellant feed systems have been mounted atop the SR-71 airplane for this experiment. A major technical objective of the LASRE flight test is to obtain installed-engine performance flight data for comparison to wind-tunnel results and for the development of computational fluid dynamics-based design methodologies. The ultimate goal of firing the aerospike rocket engine in flight is still forthcoming. An extensive design and development phase of the experiment hardware has been completed, including approximately 40 ground tests. Five flights of the LASRE and firing the rocket engine using inert liquid nitrogen and helium in place of liquid oxygen and hydrogen have been successfully completed.

Linear Aerospike Sr 71 Experiment Lasre Aerospace Propulsion Hazard Mitigation Systems Nasa Tm 1998 206561 Sep 16 1998

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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1999*

Linear Aerospike Sr 71 Experiment Lasre Aerospace Propulsion Hazard Mitigation Systems Nasa Tm 1998 206561 Sep 16 1998 written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999* with categories.

Stability And Control Estimation Flight Test Results For The Sr 71 Aircraft With Externally Mounted Experiments

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Author : Timothy R. Moes
language : en
Publisher:
Release Date : 2002

Stability And Control Estimation Flight Test Results For The Sr 71 Aircraft With Externally Mounted Experiments written by Timothy R. Moes and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2002 with Airplanes categories.

A maximum-likelihood output-error parameter estimation technique is used to obtain stability and control derivatives for the NASA Dryden Flight Research Center SR-71A airplane and for configurations that include experiments externally mounted to the top of the fuselage. This research is being done as part of the envelope clearance for the new experiment configurations. Flight data are obtained at speeds ranging from Mach 0.4 to Mach 3.0, with an extensive amount of test points at approximately Mach 1.0. Pilot-input pitch and yaw-roll doublets are used to obtain the data. This report defines the parameter estimation technique used, presents stability and control derivative results, and compares the derivatives for the three configurations tested. The experimental configurations studied generally show acceptable stability, control, trim, and handling qualities throughout the Mach regimes tested.

High Stability Engine Control Histec Flight Test Results Nasa Tm 1998 208481 Oct 26 1998

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Author : United States. National Aeronautics and Space Administration
language : en
Publisher:
Release Date : 1999*

High Stability Engine Control Histec Flight Test Results Nasa Tm 1998 208481 Oct 26 1998 written by United States. National Aeronautics and Space Administration and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 1999* with categories.

Stability And Control Estimation Flight Test Results For The Sr 71 Aircraft With Externally Mounted Experiments

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Author : National Aeronautics and Space Adm Nasa
language : en
Publisher: Independently Published
Release Date : 2018-09-24

Stability And Control Estimation Flight Test Results For The Sr 71 Aircraft With Externally Mounted Experiments written by National Aeronautics and Space Adm Nasa and has been published by Independently Published this book supported file pdf, txt, epub, kindle and other format this book has been release on 2018-09-24 with Science categories.

A maximum-likelihood output-error parameter estimation technique is used to obtain stability and control derivatives for the NASA Dryden Flight Research Center SR-71A airplane and for configurations that include experiments externally mounted to the top of the fuselage. This research is being done as part of the envelope clearance for the new experiment configurations. Flight data are obtained at speeds ranging from Mach 0.4 to Mach 3.0, with an extensive amount of test points at approximately Mach 1.0. Pilot-input pitch and yaw-roll doublets are used to obtain the data. This report defines the parameter estimation technique used, presents stability and control derivative results, and compares the derivatives for the three configurations tested. The experimental configurations studied generally show acceptable stability, control, trim, and handling qualities throughout the Mach regimes tested. The reduction of directional stability for the experimental configurations is the most significant aerodynamic effect measured and identified as a design constraint for future experimental configurations. This report also shows the significant effects of aircraft flexibility on the stability and control derivatives.Moes, Timothy R. and Iliff, KennethArmstrong Flight Research CenterCONTROLLABILITY; SR-71 AIRCRAFT; MAXIMUM LIKELIHOOD ESTIMATES; DIRECTIONAL STABILITY; AIRCRAFT STABILITY; SUBSONIC SPEED; YAW; MACH NUMBER; ERROR ANALYSIS; AERODYNAMICS

Test Report For Nasa Msfc Support Of The Linear Aerospike Sr 71 Experiment Lasre

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Author : Sandra Kay Elam
language : en
Publisher:
Release Date : 2000

Test Report For Nasa Msfc Support Of The Linear Aerospike Sr 71 Experiment Lasre written by Sandra Kay Elam and has been published by this book supported file pdf, txt, epub, kindle and other format this book has been release on 2000 with categories.