Transonic Investigation of Internal-flow Characteristics of a Square-shaped Scoop Inlet Mounted at Three Chordwise Positions Above a High 45 Degree Sweptback Wing and Body Combination
Transonic Investigation of Internal-flow Characteristics of a Square-shaped Scoop Inlet Mounted at Three Chordwise Positions Above a High 45 Degree Sweptback Wing and Body Combination

Author: Arvid L. Keith

Publisher:

Published: 1957

Total Pages: 35

ISBN-13:

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An investigation has been made in the Langley transonic blowdown tunnel at Mach numbers of 1.04, 1.28, and 1.42 to determine the internal-flow characteristics of three top-mounted scoop inlets with rounded lips. The inlets, which were of square cross section, were mounted at the leading edge, midchord, or trailing edge of the high 45 degree sweptback 6-percent-thick wing. The rearmost position without the wing installed was also studied. The test results showed that the inlet located at the wing leading edge achieved normal-shock total-pressure ratios without boundary-layer control for all Mach numbers and angles of attack. Rearward movement of the inlet over the wing effected losses of as much as 9 percent of the free-stream total pressure, compared with the leading-edge position, and increases in flow distortion up to 42 percent of the average inlet total pressure. The presence of the wing apparently had little effect on the internal-flow characteristics of the rearmost inlet for the Mach number and angle-of-attack ranges investigated.

Investigation at Transonic Speeds of the Effects of Inlet-lip Sweep on the Internal-flow Characteristics of a Semielliptical Air Inlet with an Inlet-lip Stagger of 30 Degrees
Investigation at Transonic Speeds of the Effects of Inlet-lip Sweep on the Internal-flow Characteristics of a Semielliptical Air Inlet with an Inlet-lip Stagger of 30 Degrees

Author: Charles D. Trescot

Publisher:

Published: 1957

Total Pages: 42

ISBN-13:

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An investigation has been made in the Langley transonic blowdown tunnel to study the effects of inlet lip sweep on the internal-flow characteristics of a semi-elliptical scoop-type inlet with 30 degrees of lip sweep-forward to 45 degrees sweepback in increments of 15 degrees. Tests were made at Mach numbers of 1.0, 1.2, and 1.4 through a mass-flow-ratio range of 0.4 to 0.9 at an angle of attack of zero degrees. The average total-pressure recovery and flow distortions of the sweptforward inlets were superior to those of the sweptback inlets at all test conditions.

Aircraft Design Projects
Aircraft Design Projects

Author: Lloyd R. Jenkinson

Publisher: Elsevier

Published: 2003-04-28

Total Pages: 393

ISBN-13: 0080498957

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Written with students of aerospace or aeronautical engineering firmly in mind, this is a practical and wide-ranging book that draws together the various theoretical elements of aircraft design - structures, aerodynamics, propulsion, control and others - and guides the reader in applying them in practice. Based on a range of detailed real-life aircraft design projects, including military training, commercial and concept aircraft, the experienced UK and US based authors present engineering students with an essential toolkit and reference to support their own project work.All aircraft projects are unique and it is impossible to provide a template for the work involved in the design process. However, with the knowledge of the steps in the initial design process and of previous experience from similar projects, students will be freer to concentrate on the innovative and analytical aspects of their course project. The authors bring a unique combination of perspectives and experience to this text. It reflects both British and American academic practices in teaching aircraft design. Lloyd Jenkinson has taught aircraft design at both Loughborough and Southampton universities in the UK and Jim Marchman has taught both aircraft and spacecraft design at Virginia Tech in the US. * Demonstrates how basic aircraft design processes can be successfully applied in reality* Case studies allow both student and instructor to examine particular design challenges * Covers commercial and successful student design projects, and includes over 200 high quality illustrations

Aircraft Basic Science, Eighth Edition
Aircraft Basic Science, Eighth Edition

Author: Michael J. Kroes

Publisher: McGraw Hill Professional

Published: 2013-03-30

Total Pages: 485

ISBN-13: 0071799184

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Learn the latest technologies needed to pass the FAA airframe and powerplant maintenance certification! Aircraft Basic Science, Eighth Edition, is a valuable resource for students of aviation technology that provides updated information needed to prepare for an FAA airframe and powerplant maintenance certification. This expanded edition includes recent advances in technology, such as the use of composite aircraft materials, with revised examples and figures to more accurately reflect the state of the industry. For easy reference, chapters are illustrated and present specific aspects of aircraft materials, fabrication processes, maintenance tools, and federal aviation regulations. This updated edition includes: The use, inspection, and fabrication of composite structures, including honeycomb, fiberglass, and carbon fiber materials 4-page full-color insert Hypersonic flight aerodynamics as they apply to high-speed aircraft and space reentry vehicles Tilt rotor aircraft aerodynamics and design New alloys and processes used in aircraft such as powered aluminum and friction stir welding Relevant ICAO/EASA (European and international) rules and regulations including maintenance and repair organizations (MROs), the NASA safety reporting system, ATA systems, the electronic document retrieval system, and recordkeeping systems Ground handling and safety for large, airline-style aircraft New alternative fuels under development including bio and other synthetic fuels FAA Airframe and Powerplant certification requirements needed to perform and approve aircraft maintenance