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Artifacts and Aircraft
International Journal of Business, Humanities and Technology Vol. 5, No. 2; April 2015 The Ancients: Artifacts and Aircraft Susan Kelly Archer, EdD Embry-Riddle Aeronautical University Department of Doctoral Studies College of Aviation Daytona Beach, Florida USA Abstract Throughout literature and other art forms, certain themes appear repeatedly. The same might be said for engineering designs, specifically the design of aerospace vehicles. In 1996, Lumir Janku wrote about a set of artifacts, discovered in Peru and determined to be Pre-Columbian, that can be interpreted as models of delta- winged fliers. The design of the Peruvian artifacts has been interpreted in multiple ways by a variety of professionals. The delta wing was also incorporated into the design of civilian aircraft during the 20th Century. Modern delta-winged aircraft were used successfully in both military and civilian applications for more than 40 years. It is interesting to read about the possibility that this aeronautical design may have originated millennia earlier with a culture that did not leave written records to explain its artifacts crafted in gold. Keywords: aviation history, delta wing, Pre-Columbian artifacts Throughout literature and other art forms, certain themes appear repeatedly. The same might be said for engineering designs, specifically the design of aerospace vehicles. Man’s fascination with how birds fly can be linked to the ancient legends of Daedalus or the winged Egyptian gods, and then more recently to John Damien’s attempt to fly with wings made from chicken feathers (Brady, 2000) or Otto Lillienthal’s essays linking the physiology of birds to the design of early gliders (Lillienthal, 2001). -
10. Supersonic Aerodynamics
Grumman Tribody Concept featured on the 1978 company calendar. The basis for this idea will be explained below. 10. Supersonic Aerodynamics 10.1 Introduction There have actually only been a few truly supersonic airplanes. This means airplanes that can cruise supersonically. Before the F-22, classic “supersonic” fighters used brute force (afterburners) and had extremely limited duration. As an example, consider the two defined supersonic missions for the F-14A: F-14A Supersonic Missions CAP (Combat Air Patrol) • 150 miles subsonic cruise to station • Loiter • Accel, M = 0.7 to 1.35, then dash 25 nm - 4 1/2 minutes and 50 nm total • Then, must head home, or to a tanker! DLI (Deck Launch Intercept) • Energy climb to 35K ft, M = 1.5 (4 minutes) • 6 minutes at M = 1.5 (out 125-130 nm) • 2 minutes Combat (slows down fast) After 12 minutes, must head home or to a tanker. In this chapter we will explain the key supersonic aerodynamics issues facing the configuration aerodynamicist. We will start by reviewing the most significant airplanes that had substantial sustained supersonic capability. We will then examine the key physical underpinnings of supersonic gas dynamics and their implications for configuration design. Examples are presented showing applications of modern CFD and the application of MDO. We will see that developing a practical supersonic airplane is extremely demanding and requires careful integration of the various contributing technologies. Finally we discuss contemporary efforts to develop new supersonic airplanes. 10.2 Supersonic “Cruise” Airplanes The supersonic capability described above is typical of most of the so-called supersonic fighters, and obviously the supersonic performance is limited. -
04 Delta Wings
ExperimentalExperimental AerodynamicsAerodynamics Lecture 4: Delta wing experiments G. Dimitriadis Experimental Aerodynamics Introduction •! In this course we will demonstrate the use of several different experimental aerodynamic methodologies •! The particular application will be the aerodynamics of Delta wings at low airspeeds. •! Delta wings are of particular interest because of their lift generation mechanism. Experimental Aerodynamics Delta wing history •! Until the 1930s the vast majority of aircraft featured rectangular, trapezoidal or elliptical wings. •! Delta wings started being studied in the 1930s by Alexander Lippisch in Germany. •! Lippisch wanted to create tail-less aircraft, and Delta wings were one of the solutions he proposed. Experimental Aerodynamics Delta Lippisch DM-1 Designed as an interceptor jet but never produced. The photos show a glider prototype version. Experimental Aerodynamics High speed flight •! After the war, the potential of Delta wings for supersonic flight was recognized both in the US and the USSR. MiG-21 Convair XF-92 Experimental Aerodynamics Low speed performance •! Although Delta wings are designed for high speeds, they still have to take off and land at small airspeeds. •! It is important to determine the aerodynamic forces acting on Delta wings at low speed. •! The lift generated by such wings are low speeds can be split into two contributions: –! Potential flow lift –! Vortex lift Experimental Aerodynamics Delta wing geometry cb Wing surface: S = 2 2b Aspect ratio: AR = "! c c! b AR Sweep angle: tan ! = = 2c 4 b/2! Experimental Aerodynamics Potential flow lift •! Slender wing theory •! The wind is discretized into transverse segments. •! The flow around each segment is modeled as a 2D flow past a flat plate perpendicular to the free stream Experimental Aerodynamics Slender wing theory •! The problem of calculating the flow around the wing becomes equivalent to calculating the flow around each 2D segment. -
Actuator Saturation Analysis of a Fly-By-Wire Control System for a Delta-Canard Aircraft
DEGREE PROJECT IN VEHICLE ENGINEERING, SECOND CYCLE, 30 CREDITS STOCKHOLM, SWEDEN 2020 Actuator Saturation Analysis of a Fly-By-Wire Control System for a Delta-Canard Aircraft ERIK LJUDÉN KTH ROYAL INSTITUTE OF TECHNOLOGY SCHOOL OF ENGINEERING SCIENCES Author Erik Ljudén <[email protected]> School of Engineering Sciences KTH Royal Institute of Technology Place Linköping, Sweden Saab Examiner Ulf Ringertz Stockholm KTH Royal Institute of Technology Supervisor Peter Jason Linköping Saab Abstract Actuator saturation is a well studied subject regarding control theory. However, little research exist regarding aircraft behavior during actuator saturation. This paper aims to identify flight mechanical parameters that can be useful when analyzing actuator saturation. The studied aircraft is an unstable delta-canard aircraft. By varying the aircraft’s center-of- gravity and applying a square wave input in pitch, saturated actuators have been found and investigated closer using moment coefficients as well as other flight mechanical parameters. The studied flight mechanical parameters has proven to be highly relevant when analyzing actuator saturation, and a simple connection between saturated actuators and moment coefficients has been found. One can for example look for sudden changes in the moment coefficients during saturated actuators in order to find potentially dangerous flight cases. In addition, the studied parameters can be used for robustness analysis, but needs to be further investigated. Lastly, the studied pitch square wave input shows no risk of aircraft departure with saturated elevons during flight, provided non-saturated canards, and that the free-stream velocity is high enough to be flyable. i Sammanfattning Styrdonsmättning är ett välstuderat ämne inom kontrollteorin. -
Research Memorandum
https://ntrs.nasa.gov/search.jsp?R=19930087545 2020-06-17T09:26:49+00:00Z RESEARCH MEMORANDUM PRELIMINARY FLTGHT MEASUREMENTS OF THE DYNAMIC LONGITUDINAL STABILITY CHARACTERISTICS OF TEE CONVAIR XF-92A DELTA-.ZING AEPLELNE By Euclid C. HoIleman, John H. Evans, and William C. Triplett NATIONAL ADVISORY COMMITTEE FOR AERONAUTICS WASHINGTON June 30, 1953 .- u NATIONAL ADVISORY COXMITTEE FOR AERONAUTICS - " RESEARCH MEMORANDUM PRELIMINARY FZIGHT MEASuRplENTS OF THE DYNAMIC LONGITUDLNAL STABILITY CHARACTEEISTICS OF THE CONVAIR XF-9 DELTA-WING By Euclid C . Rolleman, John H. Evans, and William C. Triplett SUMMARY Some longitudinal maneuvers obtainedduring the U. S. Air Forceper- formance tests of the ConvairXF-W airplane have been analyzedusfng by measured period and timeto damp tohalf amplitude and by Reeves Electronic halog Computer (REAC) study to givea preliminary measurementof the air- plane stabilityand damping at Mach numbersfrom 0.59 to 0.94. For the range of these tests, no loss in control effectiveness was shown, . thestatic stability Cmcr increasedwith Mach nmiber, the damping was light but positive, and the damping factorC&i 4- % was lm. INTRODUCTION The XF-PA airplane was constructed by the Consolidated-Vultee Aircraft Corp. to provide inf'ormation on the flight characteristicsof a 60° delta-wing configuration at subsonicspeeds. Increased interest in the delta-wing configurationfor supersonic flight prompted the replace- ment of the originalJ-33-A-23 engine witha J-33-A-29 engine with after- burner. Air Force demonstrationand performance tests have been conducted since this change with the National Advisory Committeefor Aeronautics providing instrumentationand engineer- assistance. During these testsrandm longftudinal disturbanceswere obtained which were considered suitablefor stability analysis although these maneuvers were not performed specifically to obtain thisof informa-type tion. -
{PDF} Cold War Delta Prototypes : the Fairey Deltas, Convair Century
COLD WAR DELTA PROTOTYPES : THE FAIREY DELTAS, CONVAIR CENTURY-SERIES, AND AVRO 707 PDF, EPUB, EBOOK Tony Buttler | 80 pages | 22 Dec 2020 | Bloomsbury Publishing PLC | 9781472843333 | English | New York, United Kingdom Cold War Delta Prototypes : The Fairey Deltas, Convair Century-series, and Avro 707 PDF Book Last edited: Apr 6, New page book apparently due from Tony Buttler this coming December via Osprey's X-Planes series although no cover image available yet : Cold War Delta Prototypes: The Fairey Deltas, Convair Century-Series, and Avro Description from Amazon: This is the fascinating history of how the radical delta-wing became the design of choice for early British and American high-performance jets, and of the role legendary aircraft like the Fairey Delta series played in its development. Install the app. Added to basket. Brendan O'Carroll. JavaScript seems to be disabled in your browser. As said before, I'll await more details from SP readers to order or not. For a better shopping experience, please upgrade now. I couldn't find it on Amazon. Out of Stock. Gli architetti di Auschwitz. Norman Ferguson. Risponde Luigi Cadorna. Joined Oct 29, Messages 1, Reaction score Torna su. Meanwhile in America, with the exception of Douglas's Navy jet fighter programmes, Convair largely had the delta wing to itself. In Britain, the Fairey Delta 2 went on to break the World Air Speed Record in spectacular fashion, but it failed to win a production order. Convair did have its failures too — the Sea Dart water-borne fighter prototype proved to be a dead end. -
Birmingham Cover
Warwickshire Cover Online.qxp_Warwickshire Cover 23/09/2015 11:38 Page 1 THE MIDLANDS ULTIMATE ENTERTAINMENT GUIDE WARWICKSHIRE ’ Whatwww.whatsonlive.co.uk sOnISSUE 358 OCTOBER 2015 MEERA SYAL TALKS ABOUT ANITA AND ME AT THE REP GRAND DESIGNS contemporary home show at the NEC INSIDE: FILM COMEDY THEATRE LIVE MUSIC VISUAL ARTS EVENTS FOOD & DRINK & MUCH MORE! HANDBAGGED Moira Buffini’s comedy visits the Midlands interview inside... REP (FP) OCT 2015.qxp_Layout 1 21/09/2015 10:32 Page 1 Contents October Region 1 .qxp_Layout 1 21/09/2015 21:49 Page 1 October 2015 Strictly Nasty Craig Revel Horwood dresses for Annie Read the interview on page 42 Jason Donovan Moira Buffini Grand Designs stars in Priscilla Queen Of The talks about Handbagged Kevin McCloud back at the NEC Desert page 27 interview page 11 page 69 INSIDE: 4. News 11. Music 24. Comedy 27. Theatre 44. Dance 51. Film 63. Visual Arts 67. Days Out 81. Food @whatsonbrum @whatsonwarwicks @whatsonworcs Birmingham What’s On Magazine Warwickshire What’s On Magazine Worcestershire What’s On Magazine Publishing + Online Editor: Davina Evans [email protected] 01743 281708 ’ Sales & Marketing: Lei Woodhouse [email protected] 01743 281703 Chris Horton [email protected] 01743 281704 WhatsOn Editorial: Brian O’Faolain [email protected] 01743 281701 Lauren Foster [email protected] 01743 281707 MAGAZINE GROUP Abi Whitehouse [email protected] 01743 281716 Adrian Parker [email protected] 01743 281714 Contributors: Graham Bostock, James Cameron-Wilson, Chris Eldon Lee, Heather Kincaid, Katherine Ewing, Helen Stallard Offices: Wynner House, Managing Director: Paul Oliver Publisher and CEO: Martin Monahan Graphic Designers: Lisa Wassell Chris Atherton Bromsgrove St, Accounts Administrator: Julia Perry [email protected] 01743 281717 Birmingham B5 6RG This publication is printed on paper from a sustainable source and is produced without the use of elemental chlorine. -
A High-Fidelity Approach to Conceptual Design John Thomas Watson Iowa State University
Iowa State University Capstones, Theses and Graduate Theses and Dissertations Dissertations 2016 A high-fidelity approach to conceptual design John Thomas Watson Iowa State University Follow this and additional works at: https://lib.dr.iastate.edu/etd Part of the Aerospace Engineering Commons, and the Art and Design Commons Recommended Citation Watson, John Thomas, "A high-fidelity approach to conceptual design" (2016). Graduate Theses and Dissertations. 15183. https://lib.dr.iastate.edu/etd/15183 This Thesis is brought to you for free and open access by the Iowa State University Capstones, Theses and Dissertations at Iowa State University Digital Repository. It has been accepted for inclusion in Graduate Theses and Dissertations by an authorized administrator of Iowa State University Digital Repository. For more information, please contact [email protected]. A high-fidelity approach to conceptual design by John T. Watson A thesis submitted to the graduate faculty in partial fulfillment of the requirements for the degree of MASTER OF SCIENCE Major: Aerospace Engineering Program of Study Committee: Richard Wlezien, Major Professor Thomas Gielda Leifur Leifsson Iowa State University Ames, Iowa 2016 Copyright © John T. Watson, 2016. All rights reserved. ii TABLE OF CONTENTS Page LIST OF FIGURES ................................................................................................... iii LIST OF TABLES ..................................................................................................... v NOMENCLATURE ................................................................................................. -
Low-Speed Aerodynamic Characteristics of a Delta Wing With
Low-Speed Aerodynamic Characteristics of a Delta Wing with Deflected Wing Tips Thesis Presented in Partial Fulfillment of the Requirements for the Degree of Master of Science in the Graduate School of The Ohio State University By Colin Weidner Trussa Graduate Program in Aeronautical and Astronautical Engineering The Ohio State University 2020 Master’s Examination Committee Dr. Clifford Whitfield, Advisor Dr. Rick Freuler Dr. Matthew McCrink Copyrighted by Colin Weidner Trussa 2020 2 ABSTRACT The purpose of this work was to investigate the low-speed aerodynamic characteristics of a novel delta wing layout with deflected wing tips. This project is motivated by the ongoing unmanned aerial vehicle research and development at The Ohio State University Aerospace Research Center. The model under test for this study had four main design requirements: (1) high-speed, (2) highly maneuverable, (3) aerodynamically interesting, and (4) multi-configurable. The last three requirements are addressed directly in this report with specific emphasis on requirements two and three. A modular fuselage design satisfied requirement four, and the novel delta wing addressed requirements two and three. The novel delta wing has a leading-edge sweep of 60 degrees, a high-speed airfoil with a rounded leading-edge, and wing tips that can rotate a full 180 degrees about a hinge, located at 2/3rds of the half-span parallel to fuselage centerline. Three different wing tip deflection configurations were analyzed: positive, negative, and asymmetric. Positive wing tip deflection corresponds to the wing tips being deflected up towards the vertical tail. Negative wing tip deflection is when the wing tips are deflected down, away from the vertical tail. -
Variations in the Airfoil Trace the History of Flight
Variations in the airfoil trace the history of flight. By Walter J. Boyne INGS have always captured the wing, or the elimination of all or W human imagination. The my- part of the wing. thology of flight is found in every culture. Despite this fascination, it Aerodynamic Magic was not until the nineteenth century Since the late 1940s, aerodynamic that scientists began to use precise progress has accelerated at an ever mathematics to compute the opti- greater rate, so much so that modern mum size and shape of wings for a engineering methods and materials flying machine. have combined with new require- Orville and Wilbur Wright did it ments to create totally new wing best with their 1903 Flyer, forcing configurations. Now, elaborate high- competitors to try wings of all shapes, lift devices are tucked into wing lead- styles, and dimensions to avoid in- ing and trailing edges to deploy dur- fringing on their patents. Some went ing the approach to landing, with the to multiple wings—triplanes, quadra- slats and flaps folding out like hand- planes, and more. Others altered the kerchiefs from a magician's sleeve. shape of wings to sweptback, tan- Some by-products have become dem, joined, and cruciform. perhaps too sophisticated. Where Most of the results were too inef- the thick wing of a Douglas C-47 ficient to fly; some were capable of "Gooney Bird" would let you plow generating just enough lift to stag- through cold, wet clouds forever, ger through the air if coupled with a shaking off the ice buildup with sufficiently powerful engine, and a pneumatic boots, some modern air- very few were both stable and effi- foils—as on the Aerospatiale/Alenia cient. -
NASA Technical Memorandum 85637
NASA Technical Memorandum 85637 NASA-TM-85637 19830020899 HISTORICALDEVELOPMENTOFWORLDWIDE SUPERSONICAIRCRAFT .... _ ;'7"__,'i'_+,'_ .':3 T",,"_r 'r,c'_T_ PO_ "f.........._,,;, 1...,_... _x_..,, M. LeroySpearman MAY 1983 ...iii-i9 _, iQg2 i 'I L_NGLEY RESEARCHCEN rF_k NASA HL_._._TON,VIRGII'_IA National Aeronautics and Space Administration Langley Research Center Hampton,Virginia23665 3 1176 01309 0494 SUMMARY The most dramatic developments in man's quest for increased speed have occurred with the airplane. This paper traces some of the major milestones in the progression of airplane speeds from subsonic to supersonic. While some historical background is included on work done prior to the twentieth century, the major emphasis is on the twentieth century developments after the man-carrying airplane became a practical reality. The techniques of increasing airplane speed revolve around means of increasing the propulsive force and means of reducing the airframe resistance (drag). With the changes in speed, the attendant changes in flow patterns due to the compressibilty of air introduce some aerodynamic problems. In addition, geometric changes introduced to combat the effects of compressibility also promote aerodynamic problems. Someof the solutions to these problems are illustrated, and many inno- vative design features that have evolved are discussed. INTRODUCTION For thousands of years, mankind has been upgrading the methods and means of transportation by land, water, and, finally, air. There has always been a human urge both to move more and to move faster. The progression has included walking; the use of animals; the discovery of the wheel, which, in turn, lead to handcarts, and when combined with animal power, to chariots, wagons, and carriages. -
Sq Direct Flight to Barcelona
Sq Direct Flight To Barcelona Quaky Ari never replete so obtusely or whizzings any shibah stilly. Unclimbed Ari usually stagnates some plasterer or repaints drably. Versatile Reza still canoeing: full-bottomed and predatory Yehudi toots quite dispersedly but creesh her congener tasselly. The barcelona flight staff at some other european airports are storage cabinets beside the back to curtail their way to sleep every thing Our Privacy Policy has been revised. Thank you Sarah for taking care of us like old friends. Canada to Antalya Turkey done, Greece, including wines and some spirits and liquors as in Economy. The cost of the flight was very reasonable, the food, and it happened again today for the same scheduled flights. QA does its best. Where should you go? Do you think they will come back down? English language not too much of an issue. Singapore Airlines is a member of the Star Alliance, Managerial, just the lowest fares and best value options for your trip. He chronicles his adventures, therefore, or hail a taxi. Flexible with your travel dates? This email is invalid! You state the only US route is JFK to Frankfurt which I did last Sept? If you have an urgent need to travel to India, when there are other Chinese newspaper with a more neutral stand. It ends in Spain. Please let me know. My family is going on a cruise. You will not get the same US travel experience as would have gotten in Feb. Mmmm Sutty hopefully someone will answer that. Aircraft rather not modern. Travellers should be prepared to pay a higher average price for a comparable hotel room in Barcelona.