Soft Kites—George Webster
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Arci Copy C Available to NASA Offices and Research Centers Only
NASA RESF_CH ON FLEXIBLE wINGS By Francis M. Rogallo NASA Langley Research Center Langley station_ Hampton, Va. Presented at the international Congress of Subsonic Aeronautics Gp 0 p_|CE $ cFSTI p_lCE(,S_ $ _arci copy _c_ N_,cro_che _MF) ,ff 653 JuW 65 New york_ New york April .5-6_ 1967 Available to NASA Offices and Research Centers Only, U. NASA RESEARCH ON FLEXIBLE WINGS By Francis M. Rogallo NASA Langley Research Center SUMMARY Flexible wings are wings made of very loose or slack cloth whose configu- ration in flight is maintained by the combination of the aerodynamic forces and the reactions from the load suspension system. Such wings can be completely flexible_ or they may be stiffened in several ways to meet the requirements of particular applications. Wing planforms and the geometry of the load suspension system are also subject to wide variations. The overall spectrum of flexible wings investigated at the Langley Research Center is presented and the state of the art with regard to maximum lift-drag ratios obtained is defined for a wide range of wing configurations. Maximum lift-drag ratios above 3.0 were obtained on completely flexible wings; and for cylindrical-type flexible wings, values of lift-drag ratios up to 17.0 were obtained when the wing had small, tapered rigid leading edges. The flexible wings of most immediate interest are those with no structural stiffening because they have weight, volume, packing, and deployment character- istics potentially as good as those of conventional parachutes, but provide a stable and controllable glide with performance adequate for aerial delivery of cargo and personnel, for landing space capsules, boosters, or hypersonic air- craft, and as emergency wings for aircraft or aircraft escape systems. -
Meteorological Equipment Data Sheets
TM 750-5-3 TECHNICAL MANUAL METEOROLOGICAL EQUIPMENT DATA SHEETS HEADQUARTERS, DEPARTMENT OF THE ARMY 30 APRIL 1973 *TM 750–5–3 TECHNICAL MANUAL HEADQUARTERS DEPARTMENT OF THE ARMY No. 750–5–3 WASHINGTON, D.C., 30 April 1973 METEOROLOGICAL EQUIPMENT DATA SHEETS Paragraph Page SECTION I. INTRODUCTION Scope _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 1 3 Purpose _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 2 3 Organization of content _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ __ 3 3 US Army type classifications _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 4 3 Currency of information _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 5 4 Omitted data_ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ 6 4 II. -
Deformation and Aerodynamic Performance of a Ram-Air Wing
Deformation and Aerodynamic Performance of a Ram-Air Wing Master thesis by Aart de Wachter Graduation committee: Prof.Dr. W.J. Ockels September 30 th , 2008 Ir. L.M.M. Boermans Ir. J. Breukels Delft University of Technology Dr. R. Ruiterkamp Faculty of Aerospace Engineering Copyright Attention is drawn to the fact that copyright of this disseration rests with the author. This copy of the dissertation has been supplied on condition that anyone who consults it is understood to recognise that its copyright rests with its author and that no quotation from this dissertation and no information derived from it may be published without the prior written consent of the author. Please contact [email protected] for written permission to quote or publish any of the contents of this dissertation. Aart de Wachter 2008 v vi Preface Before I wrote the project proposal for my master thesis in November 2007 first I wrote down all the things that I wanted to learn and do before I would leave the University. Then I tried to cast all these things into one project. With a few minor changes and additions the project was accepted. It became a project that was even more exciting than winning 3 rd price in the AIAA aircraft design competition in 2003. Because this is a very multidisciplinairy report it won’t go into all the underlying theory of the treated subjects. But to make reading easier there is a basic introduction into the most important aspects of this report. The reader should at least be familiar with the basics of aerodynamics. -
Powered Paraglider Longitudinal Dynamic Modeling and Experimentation
POWERED PARAGLIDER LONGITUDINAL DYNAMIC MODELING AND EXPERIMENTATION By COLIN P. GIBSON Bachelor of Science in Mechanical and Aerospace Engineering Oklahoma State University Stillwater, OK 2014 Submitted to the Faculty of the Graduate College of the Oklahoma State University in partial fulfillment of the requirements for the Degree of MASTER OF SCIENCE December, 2016 POWERED PARAGLIDER LONGITUDINAL DYNAMIC MODELING AND EXPERIMENTATION Thesis Approved: Dr. Andrew S. Arena Thesis Adviser Dr. Joseph P. Conner Dr. Jamey D. Jacob ii Name: COLIN P. GIBSON Date of Degree: DECEMBER, 2016 Title of Study: POWERED PARAGLIDER LONGITUDINAL DYNAMIC MODELING AND EXPERIMENTATION Major Field: MECHANICAL AND AEROSPACE ENGINEERING Abstract: Paragliders and similar controllable decelerators provide the benefits of a compact packable parachute with the improved glide performance and steering of a conventional wing, making them ideally suited for precise high offset payload recovery and airdrop missions. This advantage over uncontrollable conventional parachutes sparked interest from Oklahoma State University for implementation into its Atmospheric and Space Threshold Research Oklahoma (ASTRO) program, where payloads often descend into wooded areas. However, due to complications while building a powered paraglider to evaluate the concept, more research into its design parameters was deemed necessary. Focus shifted to an investigation of the effects of these parameters on the flight behavior of a powered system. A longitudinal dynamic model, based on Lagrange’s equation for adaptability when adding free-hanging masses, was developed to evaluate trim conditions and analyze system response. With the simulation, the effects of rigging angle, fuselage weight, center of gravity (cg), and apparent mass were calculated through step thrust input cases. -
Hang Gliding / Paragliding Association of Canada Towing Procedures Manual
Hang Gliding / Paragliding Association of Canada Towing Procedures Manual v4-preview, Jan. 29, 2005 compiled: 2/10/2009 8:10:19 PM CAUTION This manual lays out procedures, standards and guidelines under which the towing of hang gliders and paragliders in Canada is endorsed by the HPAC/ACVL. The information contained in this manual is a compilation of knowledge from many highly experienced sources, and is intended as a reference for pilots to use as they see fit in the interests of their own safety. A pilot's safety has always and will always be his own responsibility, regardless of the contents of this manual. The authors and contributors have no responsibility or liability for the actions or results of the actions of any person following the guidelines in this manual, since the person is performing those actions of his own free will. Pilots are not bound in any way to follow the guidelines in this manual, decisions involving their safety are always theirs to make, regardless of the wording used in this manual. If a pilot does choose to follow different procedures than those described here in the interests of making his activities safer, the authors would appreciate being apprised of these procedures so that we may improve this manual. Under no circumstances should the reader, or anyone directly or indirectly associated with the reader, use this manual as a sole reference on which to base towing operations of any kind. This manual is not an instructional course, it is a reference and compilation of information intended to be used to increase the safety of this portion of our sport. -
Kite Lines Is the Comprehensive International ...J Journal of Kiting, Uniquely Serving to Unify the ::> Broadest Range of Kiting Interests
QUARTERLY JOURNAL OF THE WORLDWIDE KITE COMMUNITY BEAUTIFUL MAKE'rHE Is PIN SKYGALLERY: BERCK EURO-BALENO! COLLECTING MICHAEL SUR-MER DEAD? GODDARD'S MAKE THE COLOR FOLD BLACK! , ETUDES Put Yourself in the Picture Our Free 80 page Catalog has hundreds of Kites. Get into the sky with the latest kite designs from Into The Wnd, America's leading mail order kite company for 16 years. We specialize in unmatched selection and fast service, and we guarantee your complete satisfaction with everything you buy. Call, write, FAX or e-mail us for your Catalog today. Into the Wind 1408-AG Pearl St., Boulder, CO 80302 . (800) 541-0314 (303) 449-5356 . FAX (303) 449-7315 • [email protected] -you're looking for a line that F[ You're looking for a flyline that is DISTINCTIVELY DIFFERENT. You're looking for a flyline that offers such STUNNING CONTROL that you can positively FEEL THE DIFFERENCE! You're looking for FLY LIKE YOU MEAN IT!TM You'll find competitors flying LaserPro ™ lines at most festivals. Ask them about the LaserPro ™ difference! ••••••••••••• • • • •••• •• RETAIL DEALERS! Get your LaserPro out of the back room and into your prospects' hands with a custom Point-of-Purchase Display, Highlight the convenience of LaserPro ready-to fly line sets and let them FEEL THE LASERPRO DIFFERENCE with a nifty line sampler. A great way to get your kite sales soaring! 970-242-3002 http://www.innotex.com FLyTnG CII ~nes o C') ISSN 0192-3439 Printed in U.S.A. o co Copyright © 1996 tEolus Press, Inc Reproduction in any form, in whole or in part, u Is strictly prohibited without prIor written per a: mission of the publisher. -
Kiting Summer 2007 Volume 29 Issue 2
Modegi & Co. In Waasshhiinnggttoonnashington Sleepover at Tookkiioki CCaammppCamp TTTuurrurnniinnggning JJaappaanneessee!!Japanese! National Kite Month NNAABBXX::NABX: VVVegas Buggying Ocean Shores Convention John Freeman’s Rockaway Bikini Festivals: Guam, France, China, IIttaallyyItaly,,, TTTexas, DC, Maryyllaanndd,,yland, OOrrOreeggoonnegon CONTENTS National Kite Kite Plan Cervia 33 Month 22 John Freeman 32 Everything’s Whole lotta fly- wants you to molto bene in ing going on have his bikini the Italian skies North KAPtions Berck-sur-mer What happens in American 5 Carl Bigras looks 24 34 Buggy Expo down on Canada France, doesn’t stay in France! Hi-jinx in the low desert Lincoln City Zilker Park Weifang Today a kite fes- 8 Indoors 25 Still flying in 36 tival, next year On stage and Austin after all the Olympics indoors in these years Oregon Sporting Life Guam’s Convention Throw your own Kites & Wishes 10 26 Preview 38 regional party Ray Bethell has It’s a XXX get- his shirt off on a together in beach again Ocean Shores K-Files MIKE/MASKC Smithsonian Amidst the 12 Glen and Tanna 27 Things are ducky 40 52 Haynes are on the beach in cherry blossoms, wrapped up in Ocean City, MD the Japanese kitemaking triumph Voices From Ft. Worden The Vault 14 Fancy sewing in 28 Wayne Hosking the Northwest is swarmed by 2 AKA Directory children 4 President’s Page 6 In Balance 7 Empty Spaces In The Sky MAKR 11 AKA News Fightin’ Words 20 29 Fancy sewing in 16 Event Calendar 20 Building an the Midwest 17 AI: Aerial Inquiry American 17 FlySpots tradition 18 Member Merchants 41 Regional Reports 52 People + Places + Things Toki Camp History Lesson 21 Greg Kono 30 On the cover: The Roby Pa- The journals of moves in with goda, built by Bermuda’s Philip Philippe one of Japan’s Jones, shadows the Washington Cottenceau greats Monument. -
0417 INFORMATION and COMMUNICATION TECHNOLOGY 0417/02 Paper 2 (Practical Test A), Maximum Raw Mark 80
www.XtremePapers.com UNIVERSITY OF CAMBRIDGE INTERNATIONAL EXAMINATIONS International General Certificate of Secondary Education MARK SCHEME for the May/June 2010 question paper for the guidance of teachers 0417 INFORMATION AND COMMUNICATION TECHNOLOGY 0417/02 Paper 2 (Practical Test A), maximum raw mark 80 This mark scheme is published as an aid to teachers and candidates, to indicate the requirements of the examination. It shows the basis on which Examiners were instructed to award marks. It does not indicate the details of the discussions that took place at an Examiners’ meeting before marking began, which would have considered the acceptability of alternative answers. Mark schemes must be read in conjunction with the question papers and the report on the examination. • CIE will not enter into discussions or correspondence in connection with these mark schemes. CIE is publishing the mark schemes for the May/June 2010 question papers for most IGCSE, GCE Advanced Level and Advanced Subsidiary Level syllabuses and some Ordinary Level syllabuses. Page 2 Mark Scheme: Teachers’ version Syllabus Paper IGCSE – May/June 2010 0417 02 Contact list Address correctly added with name 2 marks Field names identified 1 mark Data types Size numeric 1 dp Price currency 2 dp Number Integer 1 mark Stock item yes/no 2 marks Ignore ID field – or other key fields © UCLES 2010 Page 3 Mark Scheme: Teachers’ version Syllabus Paper IGCSE – May/June 2010 0417 02 Heading 100% correct 1 mark Search on Skill level is Beginner 1 mark Sort on Make ascending 1 mark -
Jet Ski for the Song of the Same Name by Bikini Kill, See Reject All American. Jet Ski Is the Brand Name of a Personal Watercraf
Jet Ski From Wikipedia, the free encyclopedia (Redirected from Jet skiing) For the song of the same name by Bikini Kill, see Reject All American. European Personal Watercraft Championship in Crikvenica Waverunner in Japan Racing scene at the German Championship 2007 Jet Ski is the brand name of a personal watercraft manufactured by Kawasaki Heavy Industries. The name is sometimes mistakenly used by those unfamiliar with the personal watercraft industry to refer to any type of personal watercraft; however, the name is a valid trademark registered with the United States Patent and Trademark Office, and in many other countries.[1] The term "Jet Ski" (or JetSki, often shortened to "Ski"[2]) is often mis-applied to all personal watercraft with pivoting handlepoles manipulated by a standing rider; these are properly known as "stand-up PWCs." The term is often mistakenly used when referring to WaveRunners, but WaveRunner is actually the name of the Yamaha line of sit-down PWCs, whereas "Jet Ski" refers to the Kawasaki line. [3] [4] Recently, a third type has also appeared, where the driver sits in the seiza position. This type has been pioneered by Silveira Customswith their "Samba". Contents [hide] • 1 Histor y • 2 Freest yle • 3 Freeri de • 4 Close d Course Racing • 5 Safety • 6 Use in Popular Culture • 7 See also • 8 Refer ences • 9 Exter nal links [edit]History In 1929 a one-man standing unit called the "Skiboard" was developed, guided by the operator standing and shifting his weight while holding on to a rope on the front, similar to a powered surfboard.[5] While somewhat popular when it was first introduced in the late 1920s, the 1930s sent it into oblivion.[citation needed] Clayton Jacobson II is credited with inventing the personal water craft, including both the sit-down and stand-up models. -
Kap Guide BBHD
Notes on K I T E A E R I A L P H O T O G R A P H Y I N T R O D U C T I O N This guide is prepared as an introduction to the acquisition of photography using a kite to raise the camera. It is in 3 parts: Application Equipment Procedure It is prepared with the help and guidance from the world wide KAP community who have been generous with their expertise and support. Blending a love of landscape and joy in the flight of a kite, KAP reveals rich detail and captures the human scale missed by other (higher) aerial platforms. It requires patience, ingenuity and determination in equal measure but above all a desire to capture the unique viewpoint achieved by the intersection of wind, light and time. Every flight has the potential to surprise us with views of a familiar world seen anew. Mostly this is something that is done for the love of kite flying: camera positioning is difficult and flight conditions are unpredictable. If predictable aerial imagery is required and kite flying is not your thing then other UAV methods are recommended: if you are not happy flying a kite this is not for you. If you have not flown a kite then give it a go without a camera and see how you feel about it: kite flying at its best is a curious mix of exhilaration, spiritual empathy with the environment and relaxation of mind and body brought about by concentration of the mind on a single object in the landscape. -
January 2005 Issue 102 Price £2.00
Issue 102 January 2005 Price £2.00 We have moved to Tel: +44 (01525) 229 773 The Kite Centre Fax: +44 (01525) 229 774 Unit 1 Barleyfields [email protected] Sparrow Hall Farm Edlesborough Beds LU6 2ES The Airbow is a revolutionary hybrid which combines the carving turns and trick capabilities ~ I~ 11-~ 1 • 1 of dual line kites with the precise handling and '""-' • '-=' "-"' ~ total control of quad line flying. The unique 3D shape is symmetrical both left-to-right Airbow Kite and top-to-bottom, giving the kite equal stability £190 in powered flight in all directions and unprecedented recoverability from slack line trick and freestyle flying. Switchgrip handles Switchgrips are also available (Airbow dedicated handles) £24 Flying Techniques is an instructional DVD presented by three of the UK's most respected sport kite flyers; Andy Wardley, earl Robertshaw & James Robertshaw Flying The DVD is aimed at the kite flyer who wants to take their skills to the next level and is presented in a way that even Techniques a complete novice can follow. lt also details the methods for creating flying routines and concentrates DVD on the skills required to master four line and two line sports kites £20 including the Airbow, Revolution, Gemini, Matrix and Dot Matrix. Flying Techniques lasts 93 minutes and there are 20 minutes of extras. The Peak is a new entry level trick kite from DIDAK With its high aspect ratio and its anti tangle trick line arrangement PEAK makes it an ideal kite for the intermediate flier wishing to learn some of the more radical tricks, packaged complete with £48.90 Dyneema lines and Wriststraps. -
Kitesurfing a - Z
Kitesurfing A - Z A Airfoil (aerofoil): a wing, kite, or sail used to generate lift or propulsion. Airtime: the amount of time spent in the air while jumping. AOA, Angle of Attack: also known as the angle of incidence (AOI) is the angle with which the kite flies in relation to the wind. Increasing AOA generally gives more lift. AOI, Angle of Incidence: angle which the kite takes compared to the wind direction Apparent wind, AW: The wind felt by the kite or rider as they pass through the air. For instance, if the true wind is blowing North at 10 knots and the kite is moving West at 10 knots, the apparent wind on the kite is NW at about 14 knots. The apparent wind direction shifts towards the direction of travel as speed increases. Aspect Ratio, AR: the ratio of a kites width to height (span to chord). Kites can range between a high aspect ratio of about 5.0 or a low aspect ratio of about 3.0. AR5: The legendary first 4 line inflatable kite manufactured by Naish. ARC: a foil kite manufactured by Peter Lynn B Back Loop: a kitesurfing trick where the kiter rotates backward (begins by turning their back toward the kite) while throwing his/her feet above the level of his/her head. Back Roll: same as a back loop but without getting their feet up high. Batten: a length of carbon or plastic which adds stiffness or shape to the kite or sail. Bear Away / Bear Off: change your direction of travel to a more downwind direction.