Stability and Control Estimation Flight Test Results for the SR-71 Aircraft With Externally Mounted Experiments

Stability and Control Estimation Flight Test Results for the SR-71 Aircraft With Externally Mounted Experiments PDF

Author: Timothy R. Moes

Publisher:

Published: 2002

Total Pages: 98

ISBN-13:

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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.

Introduction to Flight Testing

Introduction to Flight Testing PDF

Author: James W. Gregory

Publisher: John Wiley & Sons

Published: 2021-05-17

Total Pages: 356

ISBN-13: 111894982X

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Introduction to Flight Testing Introduction to Flight Testing Provides an introduction to the basic flight testing methods employed on general aviation aircraft and unmanned aerial vehicles Introduction to Flight Testing provides a concise introduction to the basic flight testing methods employed on general aviation aircraft and unmanned aerial vehicles for courses in aeronautical engineering. There is particular emphasis on the use of modern on-board instruments and inexpensive, off-the-shelf portable devices that make flight testing accessible to nearly any student. This text presents a clear articulation of standard methods for measuring aircraft performance characteristics. Topics covered include aircraft and instruments, digital data acquisition techniques, flight test planning, the standard atmosphere, uncertainty analysis, level flight performance, airspeed calibration, stall, climb and glide, take-off and landing, level turn, static and dynamic longitudinal stability, lateral-directional stability, and flight testing of unmanned aircraft systems. Unique to this book is a detailed discussion of digital data acquisition (DAQ) techniques, which are an integral part of modern flight test programs. This treatment includes discussion of the analog-to-digital conversion, sample rate, aliasing, and filtering. These critical details provide the flight test engineer with the insight needed to understand the capabilities and limitations of digital DAQ. Key features: Provides an introduction to the basic flight testing methods and instrumentation employed on general aviation aircraft and unmanned aerial vehicles. Includes examples of flight testing on general aviation aircraft such as Cirrus, Diamond, and Cessna aircraft, along with unmanned aircraft vehicles. Suitable for courses on Aircraft Flight Test Engineering. Introduction to Flight Testing provides resources and guidance for practitioners in the rapidly-developing field of drone performance flight test and the general aviation flight test community.

Introduction to Aerospace Engineering with a Flight Test Perspective

Introduction to Aerospace Engineering with a Flight Test Perspective PDF

Author: Stephen Corda

Publisher: John Wiley & Sons

Published: 2017-01-03

Total Pages: 929

ISBN-13: 111895338X

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Comprehensive textbook which introduces the fundamentals of aerospace engineering with a flight test perspective Introduction to Aerospace Engineering with a Flight Test Perspective is an introductory level text in aerospace engineering with a unique flight test perspective. Flight test, where dreams of aircraft and space vehicles actually take to the sky, is the bottom line in the application of aerospace engineering theories and principles. Designing and flying the real machines are often the reasons that these theories and principles were developed. This book provides a solid foundation in many of the fundamentals of aerospace engineering, while illuminating many aspects of real-world flight. Fundamental aerospace engineering subjects that are covered include aerodynamics, propulsion, performance, and stability and control. Key features: Covers aerodynamics, propulsion, performance, and stability and control. Includes self-contained sections on ground and flight test techniques. Includes worked example problems and homework problems. Suitable for introductory courses on Aerospace Engineering. Excellent resource for courses on flight testing. Introduction to Aerospace Engineering with a Flight Test Perspective is essential reading for undergraduate and graduate students in aerospace engineering, as well as practitioners in industry. It is an exciting and illuminating read for the aviation enthusiast seeking deeper understanding of flying machines and flight test.

Advanced Aircraft Flight Performance

Advanced Aircraft Flight Performance PDF

Author: Antonio Filippone

Publisher: Cambridge University Press

Published: 2012-12-17

Total Pages: 665

ISBN-13: 113978966X

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This book discusses aircraft flight performance, focusing on commercial aircraft but also considering examples of high-performance military aircraft. The framework is a multidisciplinary engineering analysis, fully supported by flight simulation, with software validation at several levels. The book covers topics such as geometrical configurations, configuration aerodynamics and determination of aerodynamic derivatives, weight engineering, propulsion systems (gas turbine engines and propellers), aircraft trim, flight envelopes, mission analysis, trajectory optimisation, aircraft noise, noise trajectories and analysis of environmental performance. A unique feature of this book is the discussion and analysis of the environmental performance of the aircraft, focusing on topics such as aircraft noise and carbon dioxide emissions.

Theory and Practice of Aircraft Performance

Theory and Practice of Aircraft Performance PDF

Author: Ajoy Kumar Kundu

Publisher: John Wiley & Sons

Published: 2016-09-26

Total Pages: 704

ISBN-13: 1119074177

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Textbook introducing the fundamentals of aircraft performance using industry standards and examples: bridging the gap between academia and industry Provides an extensive and detailed treatment of all segments of mission profile and overall aircraft performance Considers operating costs, safety, environmental and related systems issues Includes worked examples relating to current aircraft (Learjet 45, Tucano Turboprop Trainer, Advanced Jet Trainer and Airbus A320 types of aircraft) Suitable as a textbook for aircraft performance courses

The SR-71 Test Bed Aircraft: A Facility for High-Speed Flight Research

The SR-71 Test Bed Aircraft: A Facility for High-Speed Flight Research PDF

Author: Stephen Corda

Publisher:

Published: 2000

Total Pages: 40

ISBN-13:

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The SR-71 test bed aircraft is shown to be a unique platform to flight-test large experiments to supersonic Mach numbers. The test bed hardware mounted on the SR-71 upper fuselage is described. This test bed hardware is composed of a fairing structure called the "canoe" and a large "reflection plane" flat plate for mounting experiments. Total experiment weights, including the canoe and reflection plane, as heavy as 14,500 lb can be mounted on the aircraft and flight-tested to speeds as fast as Mach 3.2 and altitudes as high as 80,000 ft. A brief description of the SR-71 aircraft is given, including details of the structural modifications to the fuselage, modifications to the J58 engines to provide increased thrust, and the addition of a research instrumentation system. Information is presented based on flight data that describes the SR-71 test bed aerodynamics, stability and control, structural and thermal loads, the canoe internal environment, and reflection plane flow quality. Guidelines for designing SR-71 test bed experiments are also provided.

Kea's Flight

Kea's Flight PDF

Author: Erika Hammerschmidt

Publisher: Createspace Independent Pub

Published: 2011-08-01

Total Pages: 570

ISBN-13: 9781466240483

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It's the 25th century, and humans have learned how to end unwanted pregnancies by removing and cryogenically freezing the embryos to save for later. But they never planned for how many there would be, or how much control people would want over their offspring's genetic makeup. Kea was an exile before she was born. Grown from an embryo that was rejected for having autism-spectrum genes, she has been raised on a starship full of Earth's unwanted children. When a sudden discovery threatens their plan to find a home, Kea must join with other rejects to save the ship from its own insane government. For more info about this book, go to: http: //erikahammerschmidt.com/kea.php

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