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Kite Lines Makes Ist of Subscribers Available to Organizations Hot Colors Luuuiiiy Luya~ ~Fferinginformation, Products Or Services O * Nterest to Kiters
QUARTERLY JOURNAL OF THE WORLDWIDE KITE COMMUNITY scoveries Buggies on New Stature SkyGallery: in Brazil & a Roll.. .plus for Australia 3 Bold Is the Colombia How to Make Biggest Event Color of Reza Your Own Free 80 Page Catalog of Kites Get the kites you want from Into The Wind, America's leading mail order kite company. We're known for our unmatched selection and fast service, and we guarantee your satisfaction with everything you buy. Great Prices on Sport Kites! Now you can have it all! The best kites, the best service and competitive prices from the best Kite Catalog. Evervthin~-I u for the Kiteflier Hundreds of kites to choose from Kitemaking supplies and tools Best selection of kite line anywhere Into The WindTM 1408-G Pearl Street, Boulder, Colorado 80302 Call toll free: 1 -800-541-03 14 Cite Lines is the comprehensive in jpectra StarTM,the world's leadin! Easy to Learn 11 journal of kiting, uniquely serv * inify the broadest range of kiting manufacturer of kites introduce: t is published by Aeolus Press, Inc. wi a revolution in stunt kites. Fron ~ditorialoffices at 8807 Liberty Road, Tired of the boring single <andallstown,Maryland 21133, USA, the labs of our high perforrnancc )hone 410-922-1212, fax 410-922-426 division, Spectra SportsTM,comes Color Bags? Cite Lines is endorsed by the Internatio a breakthrough; The Flying Edge Utefliers Association and is on file in librarie Here are the. )f the National Air and Space Museum, Stunt KiteTMseries. Engineered imithsonian; National Oceanic and 1 itmospheric Sciences Administration; with aerodynamic features and NEW KITE BAGS / Jniversity of Notre Dame Sports and the performance of models cost 1 I lesearch Collection; and Idbrary of C t is included in the Index to Craft [ou ing five to ten times as much, thc ublished by the Crafts Council of Au. -
Optimal Control of Power Kites for Wind Power Production
FACULDADE DE ENGENHARIA DA UNIVERSIDADE DO PORTO Optimal Control of Power Kites for Wind Power Production Tiago Costa Moreira Maia PREPARATION FOR THE MSC DISSERTATION Master in Electrical and Computers Engineering Supervisor: Fernando Arménio da Costa Castro e Fontes Co-Supervisor: Luís Tiago de Freixo Ramos Paiva February 7, 2014 c Tiago Costa Moreira Maia, 2014 Abstract Ground based wind energy systems have reached the peak of their capacity. Wind instability, high cost of installations and small power output of a single unit are some of the the limitations of the current design. In order to become competitive the wind energy industry needs new methods to extract energy from the wind. The Earth’s surface creates a boundary layer effect on the wind that increases its speed with altitude. In fact, with altitude the wind is not only stronger, but steadier. In order to capitalize these strong streams new extraction methods were proposed. One of these solutions is to drive a generator using a tethered kite. This concept allows very large power outputs per unit. The major goal of this work is to study a possible trajectory of the kite in order to maximize the power output using an optimal control software - Imperial College London Optimal Control Software (ICLOCS), model and optimize it. i ii Contents 1 Introduction1 1.1 Context . .1 1.2 Motivation . .2 1.3 Objectives . .2 1.4 Document Structure . .2 2 State of the Art5 2.1 High Wind Energy . .5 2.2 High Wind Energy Systems . .6 2.3 The Laddermill . .9 2.3.1 Dynamic Model the Tethered Kite System . -
Power Kite Wind Speed Guide
Power kite wind speed guide Continue Photographer: Nathan Kirkman 1 of 13 Changing wind on the roof, a trellis photovoltaic solar panel topped with ten feet high vertical axis wind turbines -first ever approved in the city of Chicago for residential use. Together, they produce about 10,000 kilowatt-hours of electricity per year, which is about half the building's electrical needs, said project architect Greg Gibson. 2 of 13 Change in Wind owners Lisa and Frank Mauceri in their unique home; The Bucktown building is the only LEED for a gold-certified single-family home in Illinois. 3 of 13 For ultimate comfort in the living room, the owners chose the warmest parts of the Togo that Michelle Ducaroy designed for Ligne Roset in the 1970s and the wool rose carpet of Nani Markina; Lighting includes a pair of vintage Artimede floor lamps and a Foscarini Supernova pendant from YLighting. 4 of 13 Wind Change eco-savvy Valcutin kitchen. 5 of 13 Changing Wind Architect Michael Wilkinson (left) with colleague Greg Gibson 6 of 13 Changing Wind Transparent Kartell Furniture 7 of 13 Changes in the wind of solar bricks on the roof absorb sunlight during the day and mark the way to the roof of the garden at night 8 of the 13 Wind Change Enkasonic sound management matting (usually used to isolate the acoustic floor collection) is a decorative element in the first floor of the Mauceris Office. 9 of the 13 Wind Change Shiny white valcutine cabinets in the main bath are tempered by soft-gray concrete countertops; The mirror reflects the back staircase to the green roof. -
KITE LINES / WINTER-SPRING 1996 I KAMC -- Volume 11, Number 4, Winter-Spring 1996
QUARTERLY JOURNAL OF THE WORLDWIDE KITE COMMUNITY w - - WINTER-SPRING 1996, VOL. 11 NO. 4 FOR ALL YOUR KITING NEEDS Made in the UISIAl PACIFIC HEIGHTS, INC. P.O.Box 460729 San Francisco, CA 94146 Tel(415) 550-7155 FLU (41 5) 550- 1942 I I - 4 / KITE LINES / WINTER-SPRING 1996 I KAMC -- Volume 11, Number 4, Winter-Spring 1996 Contents 3 Features Posrcaras rrom ran@/ LU No organization, no schedule, just m-i-1-e-s of kites. First in a series by Dave Gomberg. Synthetic Dog Team: Kites / 25 How did three adventurers ski the Greenland ice cap? With Quadrifoils. By Eric Philips. Kite Patents / 28 A history of kite patents plus how to get a patent. Questions answered by Ed Grauel. Roundtable Mallorca / 32 Seven artists gather at the Miro Foundation for Art Volant to exhibit, fly and talk kites. Their views and manifesto are as creative as their kites. By Tal Streeter. Nepal's Kites: Above the Clouds / 36 Photographs by Stephen C. Lowe. Two views of kiting in Nepal: "Always Time for Kites" Stephen C. Lowe and "Cutting is the Greatest Fun" by Nirmal M. Tuladhar. Skiing the Beach: A Profile of Stan Rogers / 47 The ebullientinventor promotes skis, not wheels behind kites. By Steve McKerrow. My Friends the Diisseldorfers / 52. One of Europe's great kite clubs and how it lives. By Me1 Govig. Letter from the Publisher / 9 Letters / 11 Caribbean Kite Company Design Workshop / 12 1099 N.E. 45 Street The Tekaweya stunter by Michael Graves. Ft. Lauderdale, FL 33334 U.S.A. -
An Introduction and Brief History
KITES An Introduction and Brief History SKY WIND WORLD.ORG FLYING A ROKAKKU - FLYING BUFFALO PROJECT HISTORY From China kites spread to neighboring countries and across the seas to the Pacific region. At the same time they spread across Burma, India and arriving in North Africa about 1500 years ago. They did not arrive in Europe or America until much later probably via the trade routes Kites are thought to have originated in China about 3000 years ago. One story is that a fisherman was out on a windy day and his hat blew away and got caught on his fishing line which was then when these areas developed. blown up in to the air. Bamboo was a ready source of straight sticks for spars and silk fabric was available to make a light covering, then in the 2nd century AD paper was invented and is still used to this day. PHYSICS Kites fly when thrust, lift, drag and gravity are balanced. The flying line and bridle hold the kite at an angle to the wind so that the air flows faster across the top than the bottom producing the lift. THE PARTS OF A KITE 1 THE SAIL • This can be made of any material such as paper, fabric or plastic. • It is used to trap the air. The air must have somewhere to escape otherwise it spills over the front edge and makes the kite wobble. This can be done by using porous fabric or making it bend backwards to allow the air to slip smoothly over the side. -
Motor/Generator Design Optimization for a Drag Power Kite
Bachelor thesis, research internship, advanced seminar, or master thesis Motor/Generator Design Optimization for a Drag Power Kite Contact/Applications to: Florian Bauer,∗ florian:bauer@tum:de Announcement date: February 23, 2020 Motivation Power generating kites have the potential to generate clean energy at a low cost competitive with coal power plants or cheaper without subsidies (see e.g. [1, 2, 3] and references therein). \Drag power" kites generate power with onboard wind turbines and generators by flying fast crosswind motions, see Fig. 1. Electrical power is transmitted to the ground at a medium voltage level via electric cables in the tether. Figure 1: 20 kW \drag power" kite visualization of kiteKRAFT (image source: http://kitekraf t:de/Images/20kWProduct:png, accessed: Aug 11, 2019). ∗Institute for Electrical Drive Systems and Power Electronics, Department of Electrical and Computer Engi- neering, Technical University of Munich 1 Tasks, Suggested Solution Approach, Expected Results The eight gear-less motors/generators (electrical machines) of kiteKRAFT's kite are currently standard low-voltage RC components, shown in Fig. 2. In the next generation kite, an optimized Figure 2: Powertrain of kiteKRAFT's 5 kW kite (image source: https://miro:medium:com/max /1000/1*hcj4kgUC1NLrYeP -CLJAw:jpeg, accessed: Feb. 23, 2020). machine for the optimal DC link voltage of around 800 V shall be designed. Starting from a literature survey and sourcing information from electrical machine designers and manufacturers, an optimal machine shall be designed and a prototype shall be built and tested. Starting point is the literature list below and a longer literature list provided upon start of work. -
Airborne Wind Energy
Airborne Wind Energy Jochem Weber, Melinda Marquis, Aubryn Cooperman, Caroline Draxl, Rob Hammond, Jason Jonkman, Alexsandra Lemke, Anthony Lopez, Rafael Mudafort, Mike Optis, Owen Roberts, and Matt Shields National Renewable Energy Laboratory NREL is a national laboratory of the U.S. Department of Energy Technical Report Office of Energy Efficiency & Renewable Energy NREL/TP-5000-79992 Operated by the Alliance for Sustainable Energy, LLC August 2021 This report is available at no cost from the National Renewable Energy Laboratory (NREL) at www.nrel.gov/publications. Contract No. DE-AC36-08GO28308 Airborne Wind Energy Jochem Weber, Melinda Marquis, Aubryn Cooperman, Caroline Draxl, Rob Hammond, Jason Jonkman, Alexsandra Lemke, Anthony Lopez, Rafael Mudafort, Mike Optis, Owen Roberts, and Matt Shields National Renewable Energy Laboratory Suggested Citation Weber, Jochem, Melinda Marquis, Aubryn Cooperman, Caroline Draxl, Rob Hammond, Jason Jonkman, Alexsandra Lemke, Anthony Lopez, Rafael Mudafort, Mike Optis, Owen Roberts, and Matt Shields. 2021. Airborne Wind Energy. Golden, CO: National Renewable Energy Laboratory. NREL/TP-5000-79992. https://www.nrel.gov/docs/fy21osti/79992.pdf. NREL is a national laboratory of the U.S. Department of Energy Technical Report Office of Energy Efficiency & Renewable Energy NREL/TP-5000-79992 Operated by the Alliance for Sustainable Energy, LLC August 2021 This report is available at no cost from the National Renewable Energy National Renewable Energy Laboratory Laboratory (NREL) at www.nrel.gov/publications. 15013 Denver West Parkway Golden, CO 80401 Contract No. DE-AC36-08GO28308 303-275-3000 • www.nrel.gov NOTICE This work was authored by the National Renewable Energy Laboratory, operated by Alliance for Sustainable Energy, LLC, for the U.S. -
3-Line Trainer Kite with Bar Skim | 3-Line Trainer Kite with Bar [Water]
PLKB PRODUCTS Catalogue PLKB SCHOOL PROGRAM Since 1971, we believe that Peter Lynn Kiteboarding has been ahead of its time, innovating kites and developing gear aimed at harnessing the power of the wind in the best way possible. Innovator of the first kite buggy, father of depower foils and market leader in power kites: Peter Lynn Kiteboarding never missed the opportunity to invite anyone interested in wind and power in this world. These shared passions are reflected in the optimal products for every discipline, that we’ve been constantly developing and creating kites using latest technology and aiming to push the sport to new levels, and riders to the top of podiums. In this catalogue you can find our newest creations! Enjoy reading! PLKB IN A NUTSHELL 2 OUR WORLDS WATER SNOW LAND PRODUCT OVERVIEW WAKESTYLE FREESTYLE FREERIDE WAVE LIGHTWIND FOIL ADVANCED RAW AERO V2 ESCAPE V8 INTERMEDIATE SYNERGY HOOK V2 NOVA SWELL V4 EARLY ADAPTER EARLY ACCESSOIRES CAPITAL PATROL COMMANDER NAVIGATOR AVIATOR WATER OVERVIEW WATER 3 WATER TUBES CUTTING EDGE TUBES SWELL V4 WAVE | FREERIDE | SCHOOL SIZES 5 6 7 8 9 11 13 15 COLOURS CHARACTERISTICS ENTRY + PRECISE AND RESPONSIVE TUBES FREESTYLE + DESIGNED FOR MAXIMUM STABILITY AND SLACK LINE AIRTIME DRIFT, EVEN WHEN DEPOWERED WAVE UPWIND + EXCEPTIONAL WIND RANGE WINDRANGE DNA + LIGHT AND RESPONSIVE BAR PRESSURE CUTTING EDGE TUBES ESCAPE V8 FREESTYLE | FREERIDE SIZES 6 7 8 9 10 11 13 15 COLOURS CHARACTERISTICS ENTRY + INTUITIVE HANDLING & KITE FEEDBACK TUBES FREESTYLE + DIRECT AND REPSONSIVE STEERING AIRTIME -
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 -
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. -
Passion Makes Us Fly
PASSION MAKES US FLY ONE BRAND ALL DISCIPLINES PETERLYNN.COM “We believe we can make kitesports accessible and enjoyable for everyone” About us Kiteboarding Welcome to the world of Peter Lynn. We at Peter Lynn are kiteflyers at significant improvement over A wind driven world where our passion heart, and have been for over four previous models. We refrain from for kite sports fuels our desire to decades. This makes us one of the launching new products each year deliver the best kites for any kiting oldest and most trusted kite brands that do not express our vision of discipline. in the world. innovative and cutting edge kite 3 design. We believe that we can make the kite sport accessible and enjoyable for Our kites are thoroughly tested on everyone, by making our products different surfaces and under a variety user friendly and easy to use. Peter Kite-design redefined of circumstances all over the world. Lynn kites are stable, give the user At Peter Lynn we take pride in They are scrutinized, in every aspect, an instant feeling of comfort and our strong Dutch belief in honest, under the most demanding conditions, safety and at the same time they uncompromised and no-nonsense by the most demanding riders. inspire progression. products. A belief that drives us to always use the best possible Whether you are just getting started, From kiteboarding to powerkiting materials and innovative construction shredding waves, whether you’re and everything in between, we do it methods, in order to deliver only ripping up the dirt or carving fresh all. -
Types of Stunt Kites
www.my-best-kite.com Table of Contents Introduction.............................................................................................................................6 Chapter format........................................................................................................................................ 6 A Tip For The Frugal............................................................................................................................... 6 STUNT KITES........................................................................................................................7 Delta, Diamond, Parafoil or Quad?.........................................................................................................7 Types Of Stunt Kites............................................................................................................................... 8 The Peter Powell Stunt Kite.......................................................................................................12 Classic Steerable Diamond Kite...........................................................................................................12 'Cayman' Peter Powell Stunt Kite.........................................................................................................12 A History: The Peter Powell Stunt Kite..................................................................................................13 Dual Line Parafoil Kites..............................................................................................................15