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Aerodynamic Chatacteristics And Control Effectiveness Of The Hl 20 Lifting Body Configuration At Mach 10 In Air
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Book Synopsis Aerodynamic Characteristics and Control Effectiveness of the HL-20 Lifting Body Configuration at Mach 10 in Air by : William I. Scallion
Download or read book Aerodynamic Characteristics and Control Effectiveness of the HL-20 Lifting Body Configuration at Mach 10 in Air written by William I. Scallion and published by . This book was released on 1999 with total page 62 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 0.0196-scale model of the HL-20 lifting body, one of several configurations proposed for future crewed spacecraft, was tested in the Langley 31-Inch Mach 10 Tunnel. The purpose of the tests was to determine the effectiveness of fin-mounted elevons, a lower surface flush-mounted body flap, and a flush-mounted yaw controller at hypersonic speeds. The nominal angle-of-attack range, representative of hypersonic entry, was 20 to 41 degrees, the sideslip angles were 0, 2, and -2 degrees, and the test Reynolds number was 1.06 x 10[factor 6] based on model reference length. The aerodynamic, longitudinal, and lateral control effectiveness along with surface oil flow visualizations are presented and discussed. The configuration was longitudinally and laterally stable at the nominal center of gravity. The primary longitudinal control, the fin-mounted elevons, could not trim the model to the desired entry angle of attack of 30 degrees. The lower surface body flaps were effective for roll control and the associated adverse yawing moment was eliminated by skewing the body flap hinge lines. A yaw controller, flush-mounted on the lower surface, was also effective, and the associated small rolling moment was favorable.
Book Synopsis Aerodynamic Characteristics and Control Effectiveness of the Hl-20 Lifting Body Configuration at Mach 10 in Air by : National Aeronautics and Space Administration
Download or read book Aerodynamic Characteristics and Control Effectiveness of the Hl-20 Lifting Body Configuration at Mach 10 in Air written by National Aeronautics and Space Administration and published by . This book was released on 2018-08-27 with total page 60 pages. Available in PDF, EPUB and Kindle. Book excerpt: A 0.0196-scale model of the HL-20 lifting-body, one of several configurations proposed for future crewed spacecraft, was tested in the Langley 31-Inch Mach 10 Tunnel. The purpose of the tests was to determine the effectiveness of fin-mounted elevons, a lower surface flush-mounted body flap, and a flush-mounted yaw controller at hypersonic speeds. The nominal angle-of-attack range, representative of hypersonic entry, was 2 deg to 41 deg, the sideslip angles were 0 deg, 2 deg, and -2 deg, and the test Reynolds number was 1.06 x 10 E6 based on model reference length. The aerodynamic, longitudinal, and lateral control effectiveness along with surface oil flow visualizations are presented and discussed. The configuration was longitudinally and laterally stable at the nominal center of gravity. The primary longitudinal control, the fin-mounted elevons, could not trim the model to the desired entry angle of attack of 30 deg. The lower surface body flaps were effective for roll control and the associated adverse yawing moment was eliminated by skewing the body flap hinge lines. A yaw controller, flush-mounted on the lower surface, was also effective, and the associated small rolling moment was favorable.Scallion, William I.Langley Research CenterAERODYNAMIC CHARACTERISTICS; CONTROLLABILITY; EFFECTIVENESS; LIFTING BODIES; SCALE MODELS; WIND TUNNEL TESTS; ELEVONS; FINS; YAWING MOMENTS; STABILITY; SIDESLIP; REYNOLDS NUMBER; LONGITUDINAL CONTROL; LATERAL CONTROL; HYPERSONIC SPEED; FLOW VISUALIZATION; FLAPPING; ANGLE OF ATTACK...
Book Synopsis Monthly Catalog of United States Government Publications by :
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Book Synopsis NASA Langley Scientific and Technical Information Output: 1999 by :
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Book Synopsis Control Effectiveness and Tip-fin Dihedral Effects for the HL-20 Lifting-body Configuration at Mach Numbers from 1.6 to 4.5 by : Christopher I. Cruz
Download or read book Control Effectiveness and Tip-fin Dihedral Effects for the HL-20 Lifting-body Configuration at Mach Numbers from 1.6 to 4.5 written by Christopher I. Cruz and published by . This book was released on 1995 with total page 96 pages. Available in PDF, EPUB and Kindle. Book excerpt:
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Book Synopsis Research and Technology Program Digest by : United States. National Aeronautics and Space Administration
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Book Synopsis Advances in Aerospace Guidance, Navigation and Control by : Florian Holzapfel
Download or read book Advances in Aerospace Guidance, Navigation and Control written by Florian Holzapfel and published by Springer Science & Business Media. This book was released on 2011-03-15 with total page 465 pages. Available in PDF, EPUB and Kindle. Book excerpt: Over the last few decades, both the aeronautics and space disciplines have greatly influenced advances in controls, sensors, data fusion and navigation. Many of those achievements that made the word “aerospace” synonymous with “high–tech” were enabled by innovations in guidance, navigation and control. Europe has seen a strong trans-national consolidation process in aerospace over the last few decades. Most of the visible products, like commercial aircraft, fighters, helicopters, satellites, launchers or missiles, are not made by a single country – they are the fruits of cooperation. No European country by itself hosts a specialized guidance, navigation and controls community large enough to cover the whole spectrum of disciplines. However, on a European scale, mutual exchange of ideas, concepts and solutions is enriching for all. The 1st CEAS Specialist Conference on Guidance, Navigation and Control is an attempt to bring this community together. This book is a selection of papers presented at the conference. All submitted papers have gone through a formal review process in compliance with good journal practices. The best papers have been recommended by the reviewers to be published in this book.
Book Synopsis Scientific and Technical Aerospace Reports by :
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Book Synopsis Compendium of NASA Langley Reports on Hypersonic Aerodynamics by : Frances E. Sabo
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Book Synopsis Aeronautical Engineering: A Cumulative Index to a Continuing Bibliography (supplement 287) by :
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