The Foil Alphabet
Total Page:16
File Type:pdf, Size:1020Kb
Load more
Recommended publications
-
Team Portraits Emirates Team New Zealand - Defender
TEAM PORTRAITS EMIRATES TEAM NEW ZEALAND - DEFENDER PETER BURLING - SKIPPER AND BLAIR TUKE - FLIGHT CONTROL NATIONALITY New Zealand HELMSMAN HOME TOWN Kerikeri NATIONALITY New Zealand AGE 31 HOME TOWN Tauranga HEIGHT 181cm AGE 29 WEIGHT 78kg HEIGHT 187cm WEIGHT 82kg CAREER HIGHLIGHTS − 2012 Olympics, London- Silver medal 49er CAREER HIGHLIGHTS − 2016 Olympics, Rio- Gold medal 49er − 2012 Olympics, London- Silver medal 49er − 6x 49er World Champions − 2016 Olympics, Rio- Gold medal 49er − America’s Cup winner 2017 with ETNZ − 6x 49er World Champions − 2nd- 2017/18 Volvo Ocean Race − America’s Cup winner 2017 with ETNZ − 2nd- 2014 A class World Champs − 3rd- 2018 A class World Champs PATHWAY TO AMERICA’S CUP Red Bull Youth America’s Cup winner with NZL Sailing Team and 49er Sailing pre 2013. PATHWAY TO AMERICA’S CUP Red Bull Youth America’s Cup winner with NZL AMERICA’S CUP CAREER Sailing Team and 49er Sailing pre 2013. Joined team in 2013. AMERICA’S CUP CAREER DEFINING MOMENT IN CAREER Joined ETNZ at the end of 2013 after the America’s Cup in San Francisco. Flight controller and Cyclor Olympic success. at the 35th America’s Cup in Bermuda. PEOPLE WHO HAVE INFLUENCED YOU DEFINING MOMENT IN CAREER Too hard to name one, and Kiwi excelling on the Silver medal at the 2012 Summer Olympics in world stage. London. PERSONAL INTERESTS PEOPLE WHO HAVE INFLUENCED YOU Diving, surfing , mountain biking, conservation, etc. Family, friends and anyone who pushes them- selves/the boundaries in their given field. INSTAGRAM PROFILE NAME @peteburling Especially Kiwis who represent NZ and excel on the world stage. -
Download Our 2021-22 Media Pack
formerly Scuttlebutt Europe 2021-22 1 Contents Pages 3 – 9 Seahorse Magazine 3 Why Seahorse 4 Display (Rates and Copy Dates) 5 Technical Briefing 6 Directory 7 Brokerage 8 Race Calendar 9 New Boats Enhanced Entry Page 10 “Planet Sail” On Course show Page 11 Sailing Anarchy Page 12 EuroSail News Page 13 Yacht Racing Life Page 14 Seahorse Website Graeme Beeson – Advertising Manager Tel: +44 (0)1590 671899 Email: [email protected] Skype: graemebeeson 2 Why Seahorse? Massive Authority and Influence 17,000 circulation 27% SUBS 4% APP Seahorse is written by the finest minds 14% ROW & RETAIL DIGITAL PRINT and biggest names of the performance 5,000 22% UK 28% IRC sailing world. 4,000 EUROPE 12% USA 3,000 International Exclusive Importance Political Our writers are industry pro's ahead of and Reach Recognition 2,000 journalists - ensuring Seahorse is the EUROPE A UK S UK 1,000 EUROPE U 14% RORC last word in authority and influence. ROW A A S ROW UK S ROW U 0 U ROW EUROPE IRC ORC RORC SUBS & APP 52% EUROPE (Ex UK) 27% ORC Seahorse is written assuming a high RETAIL SUBS level of sailing knowledge from it's The only sailing magazine, written Recognised by the RORC, IRC & from no national perspective, entirely ORC all of whom subscribe all readership - targetting owners and dedicated to sailboat racing. An their members and certificate afterguard on performance sailing boats. approach reflected by a completely holders to Seahorse as a benefit international reach adopt and adapt this important information into their design work. -
NASA Supercritical Airfoils
NASA Technical Paper 2969 1990 NASA Supercritical Airfoils A Matrix of Family-Related Airfoils Charles D. Harris Langley Research Center Hampton, Virginia National Aeronautics-and Space Administration Office of Management Scientific and Technical Information Division Summary wind-tunnel testing. The process consisted of eval- A concerted effort within the National Aero- uating experimental pressure distributions at design and off-design conditions and physically altering the nautics and Space Administration (NASA) during airfoil profiles to yield the best drag characteristics the 1960's and 1970's was directed toward develop- over a range of experimental test conditions. ing practical two-dimensional turbulent airfoils with The insight gained and the design guidelines that good transonic behavior while retaining acceptable were recognized during these early phase 1 investiga- low-speed characteristics and focused on a concept tions, together with transonic, viscous, airfoil anal- referred to as the supercritical airfoil. This dis- ysis codes developed during the same time period, tinctive airfoil shape, based on the concept of local resulted in the design of a matrix of family-related supersonic flow with isentropic recompression, was supercritical airfoils (denoted by the SC(phase 2) characterized by a large leading-edge radius, reduced prefix). curvature over the middle region of the upper surface, and substantial aft camber. The purpose of this report is to summarize the This report summarizes the supercritical airfoil background of the NASA supercritical airfoil devel- development program in a chronological fashion, dis- opment, to discuss some of the airfoil design guide- lines, and to present coordinates of a matrix of cusses some of the design guidelines, and presents family-related supercritical airfoils with thicknesses coordinates of a matrix of family-related super- critical airfoils with thicknesses from 2 to 18 percent from 2 to 18 percent and design lift coefficients from and design lift coefficients from 0 to 1.0. -
USA Wins 33Rd America's Cup Match
Volume XXI No. 2 April/May 2010 USAUSA winswins 33rd33rd America’sAmerica’s CupCup MatchMatch BMW ORACLE Racing Team’s revolutionary wing sail powered trimaran USA Over 500 New and Used Boats Call for 2010 Dockage MARINA & SHIP’S STORE Downtown Bayfield Seasonal & Guest Dockage, Nautical Gifts, Clothing, Boating Supplies, Parts & Service 715-779-5661 apostleislandsmarina.net 2 Visit Northern Breezes Online @ www.sailingbreezes.com - April/May 2010 New New VELOCITEK On site INSTRUMENTS Sail repair IN STOCK AT Quick, quality DISCOUNT service PRICES Do it Seven Seas is now part of Shorewood Marina • Same location on Lake Minnetonka • Same great service, rigging, hardware, cordage, paint Lake Minnetonka’s • Inside boat hoist up to 27 feet—working on boats all winter Premier Sailboat Marina • New products—Blue Storm inflatable & Stohlquist PFD’s, Rob Line high-tech rope Now Reserving Slips for Spring Hours Mon & Wed Open House the 2010 Sailing Season! 9-7 Tues-Thur-Fri Saturday 8-5 April 10th Sat 9-3 Free food Closed Sundays Open House April 10th Are You Ready for Summer? 600 West Lake St., Excelsior, MN 55331 Just ½ mile north of Hwy 7 on Co. Rd. 19 952-474-0600 952-470-0099 [email protected] www.shorewoodyachtclub.com S A I L I N G S C H O O L Safe, fun, learning Learn to sail on Three Metro Lakes; Also Leech Lake, MN; Pewaukee Lake, WI; School of Lake Superior, Apostle Islands, Bayfield, WI; Lake Michigan; Caribbean Islands the Year On-the-water courses weekends, week days, evenings starting May: Gold Standard • Basic Small Boat -
Hydrofoil, Rudder, and Strut Design Issues
International Hydrofoil Society Correspondence Archives... Hydrofoil, Rudder, and Strut Design Issues (See also links to design texts and other technical information sources on the IHS Links Page) (Last Update: 11 Nov 03) Return to the Archived Messages Contents Page To search current messages, go to the Automated BBS Correspondence Where is Foil Design Data? [11 May 03] Where do I go for specifics about foil design? As in how do I determine the size, aspect ratio, need for winglets, shape, (inverted T vs. inverted Y vs. horizontal V), NASA foil specification . My plan calls for a single foil fully submerged with all control being accomplished with above water airfoils (pitch, roll, direction). Everything above water is conceptually set, but I have limited understanding / knowledge about foils. I understand that there are arrangements combining a lower speed and higher speed foil on the same vertical column, with some type of grooving on the higher speed foil to prevent cavitation at limited angles of attack. With respect to the website http://www.supramar.ch/ there is an article on grooving to avoid cavitation. I anticipate a limited wave surface (off shore wind) so elevation could be limited, and the initial lifting foil would be unlikely to be exposed to resubmersion at speed. Supramar is willing to guide/specify the grooving at no charge, but I need a foil design for their review or at least that seems to be the situation. I have not actually asked for a design proposal. Maybe I should. Actually it is hard to know if my request would even be taken seriously. -
Design and Computational Analysis of Winglets
Turkish Journal of Computer and Mathematics Education Vol.12 No.7 (2021), 1-9 Research Article Design and Computational Analysis of Winglets V.Madhanraj(1), Kaka Ganesh Chandra(2), Desineni Swprazeeth(3) , Battina Dhanush Gopal(4), Hindustan Institute of Technology and Science, Padur, Chennai. Article History: Received: 10 January 2021; Revised: 12 February 2021; Accepted: 27 March 2021; Published online: 16 April 2021 Abstract: The primary goal of this project is to learn and analyse the aerodynamic performance of wings and various types of winglets and wingtip devices. The objective of this study is to improve a model for various types of winglets and wingtip devices using the software SOLIDWORKS, And Fluent Analysis using the software ANSYS. The best performing aerofoil in terms of aerodynamic efficiency, NACA 64-215, was chosen for wing construction. A wing which is without winglets was simulated, followed by a wing with various winglets at different Cant angles. To determine the aerodynamic efficiency, a wing with a blended winglet and a raked winglet was simulated. In order to found a more efficient wing with winglets, designs of Blended and Raked winglets are modified, and comparison of the performance of winglets by varying with different cant angles, 30° and 60° were performed. As a result of this work, it was concluded that adding a winglet to a wing increases its aerodynamic efficiency in terms of CL/CD. Keywords: Winglets, Wingtip Devices, Blended Winglet, Raked Winglet, Lift, Drag, Vorticity, Co-efficient of Lift, Co- efficient of Drag 1.1 Introduction to Winglets Current global environmental issues such as rising aviation fuel costs and global warming have forced airlines to make adjustments. -
Human Powered Hydrofoil Design & Analytic Wing Optimization
Human Powered Hydrofoil Design & Analytic Wing Optimization Andy Gunkler and Dr. C. Mark Archibald Grove City College Grove City, PA 16127 Email: [email protected] Abstract – Human powered hydrofoil watercraft can have marked performance advantages over displacement-hull craft, but pose significant engineering challenges. The focus of this hydrofoil independent research project was two-fold. First of all, a general vehicle configuration was developed. Secondly, a thorough optimization process was developed for designing lifting foils that are highly efficient over a wide range of speeds. Given a well-defined set of design specifications, such as vehicle weight and desired top speed, an optimal horizontal, non-surface- piercing wing can be engineered. Design variables include foil span, area, planform shape, and airfoil cross section. The optimization begins with analytical expressions of hydrodynamic characteristics such as lift, profile drag, induced drag, surface wave drag, and interference drag. Research of optimization processes developed in the past illuminated instances in which coefficients of lift and drag were assumed to be constant. These shortcuts, made presumably for the sake of simplicity, lead to grossly erroneous regions of calculated drag. The optimization process developed for this study more accurately computes profile drag forces by making use of a variable coefficient of drag which, was found to be a function of the characteristic Reynolds number, required coefficient of lift, and airfoil section. At the desired cruising speed, total drag is minimized while lift is maximized. Next, a strength and rigidity analysis of the foil eliminates designs for which the hydrodynamic parameters produce structurally unsound wings. Incorporating constraints on minimum takeoff speed and power required to stay foil-borne isolates a set of optimized design parameters. -
1 Yacht Inhalt 2009
1 Ya ch t I n h alt 2 0 0 9 Aktion Dalton, Grant: Teilnahme am Volvo Ocean Race 10 11 Fotowettbewerb: Kuriose Aufnahmen 10 42-46 Darßer Ort: Hafenbau zurückgedreht, kein neuer Hafen in Prerow 19 8 Fotowettbewerb: Leserfoto des Jahres gesucht 10 52-53 Darßer Ort: Hafenneubau vor dem Aus? 10 12 Fotowettbewerb: Leserfoto des Jahres, die Sieger 22 36-44 De Rothschild, David: Expedition mit Recycling-Kat „Plastiki“ 7 14 Decksbelag: Bald kein Burma-Teak mehr zu haben 23 12 Aktuell Dekker, Laura: 14-Jährige auf Rekordfahrt nach Urteilsverkündung 18 14 Aktion: YACHT-Benefiz-Kunstauktion, Gemälde von F. Klatt 25 8 Dekker, Laura: Start zur Weltumsegelung von Gibraltar aus 20 10 Alkohol: Obergrenze 0,5 Promille 16 12 Design: Kombination Speedboot u. Yacht, Barcelona Yacht Design Group 9 8 Alkoholmissbrauch: 0 % in Bayern 12 8 DGzRS: Broschüre „Sicher auf See“ 15 14 Amel 64: Neue Ketsch aus Frankreich 2 12 DGzRS: Ehrung für Seenotretter Johann Niemann 17 9 America’s Cup: Gericht bestätigt Austragungsort Valencia 2 10 Di Benedetto, A.: Einhand-nonstop-Weltumsegelung mit 6,50-Yacht 17 9 America’s Cup: Kosten des Cups 6 8 Dom. Republik: Charterangebot von Barone Yachting 15 14 America’s Cup: L. Ellison mit Team auf Siegestour 7 14 Eissing, Thomas: Nachruf, Ingenieur verstorben 5 10 Antrieb: Manövrierhilfe „Dock and Go“ bei Bénéteau 19 12 Elbe: Mehr Service für Segler an der Unterelbe 22 9 ARC: Regatta erstmals live im Internet 1 10 Elektronik: Bodensee-Navigations-Programm für I-Phone 16 13 Aufgefischt: Als Bootsbauer vom Milliardär zum Millionär 5 10 -
Design of a Foiling Optimist
Journal of Sailboat Technology, Article 2018-06 © 2018, The Society of Naval Architects and Marine Engineers. DESIGN OF A FOILING OPTIMIST A. Andersson, A. Barreng, E. Bohnsack, L. Larsson, L. Lundin, G. Olander, R. Sahlberg and E. Werner Chalmers University of Technology, Sweden C. Finnsgård and A. Persson Chalmers University of Technology and SSPA Sweden AB, Sweden M. Brown and J McVeagh SSPA Sweden AB, Sweden Downloaded from http://onepetro.org/jst/article-pdf/3/01/1/2205397/sname-jst-2018-06.pdf by guest on 26 September 2021 Manuscript received January 16, 2018; accepted September 11, 2018. Abstract: Because of the successful application of hydrofoils on the America's Cup catamarans in the past two campaigns the interest in foiling sailing craft has boosted. Foils have been fitted to a large number of yachts with great success, ranging from dinghies to ocean racers. An interesting question is whether one of the slowest racing boats in the world, the Optimist dinghy, can foil, and if so, at what minimum wind speed. The present paper presents a comprehensive design campaign to answer the two questions. The campaign includes a newly developed Velocity Prediction Program (VPP) for foiling/non-foiling conditions, a wind tunnel test of sail aerodynamics, a towing tank test of hull hydrodynamics and a large number of numerical predictions of foil characteristics. An optimum foil configuration is developed and towing tank tested with satisfactory results. The final proof of the concept is a successful on the water test with stable foiling -
Modelling Flow Around a NACA 0012 Foil a Report for 3Rd Year, 2Nd Semester Project
Modelling Flow around a NACA 0012 foil A report for 3rd Year, 2nd Semester Project Eamonn Colley [email protected] Supervisor: Tim Gourlay Co‐Supervisor: Andrew King October 2011 Curtin University Perth, Western Australia 1 Abstract The third year project consisted of using open source software (OpenFoam) to model 2D foils – in particular the NACA 0012. It was found that although the flow seemed to simulate what should be happening around the foil, the results did not agree with test programs and approximate theoretical values. Using X‐Foil, a small program that uses a panel method to find the lift, drag and pressure distribution by a boundary layer evaluation algorithm we could compare the results obtained from OpenFOAM. It was determined that the discrepancies in the lift coefficient, drag coefficient and pressure coefficient could be due the mesh not accurate enough around the leading and trailing edge or that unrealistic values were used. This can be improved by refining the mesh around these areas or changing the values to be close matching to a full size helicopter. Experimental work was also completed on a 65‐009 NACA foil. Although the data collected from this experiment could not be used to compare any results made in OpenFOAM, the techniques learnt could be applied to future experiments to improve the quality of data taken. 2 Contents Modelling Flow around a NACA 0012 foil...............................................................................................1 Abstract...................................................................................................................................................2 -
Performance Analysis of Flapping Foil Flow Energy Harvester Mounted on Piezoelectric Transducer Using Meshfree Particle Method
Journal of Applied Fluid Mechanics, Vol. 13, No. 6, pp. 1859-1872, 2020. Available online at www.jafmonline.net, ISSN 1735-3572, EISSN 1735-3645. DOI: 10.47176/jafm.13.06.31292 Performance Analysis of Flapping Foil Flow Energy Harvester Mounted on Piezoelectric Transducer using Meshfree Particle Method M. Jamil1, A. Javed1†, S. I. A. Shah1, M. Mansoor1, A. Hameed1 and K. Djidjeli2 1College of Aeronautical Engineering, National University of Sciences and Technology, Islamabad, Pakistan 2University of Southampton, Southampton, UK †Corresponding Author Email: [email protected] (Received December 28, 2019; accepted May 16, 2020) ABSTRACT Performance of a semi-active flapping foil flow energy harvester, coupled with a piezoelectric transducer has been analyzed in this work. The airfoil is mounted on a spring, damper and piezoelectric transducer arrangement in its translational mode. External excitation is imparted in pitch mode and system is allowed to oscillate in its translational mode as a result of unsteady fluid forces. A piezoelectric transducer is used as an electrical power converter. Flow around moving airfoil surface is solved on a meshfree nodal cloud using Radial Basis Function in Finite Difference Mode (RBF-FD). Fourth order Runge-Kutta Method is used for time marching solution of solid equations. Before the solution of complex Fluid-Structure Interaction problem, a parametric study is proposed to identify the values of kinematic, mechanical and geometric variables which could offer an improved energy harvesting performance. For this purpose, the problem is modelled as a coupled electromechanical system using Lagrange energy equations. Airfoil lift and pitching moment are formulated through Theodorson’s two dimensional thin-plate model and a parametric analysis is conducted to work out the optimized values of pivot location, pitch amplitude, spring stiffness and damping constant. -
'Flying' Boat 23 May 2015, by Veronique Dupont
French adventurer seeks Pacific record with 'flying' boat 23 May 2015, by Veronique Dupont shallow waves off the coast of San Pedro, just south of Los Angeles. This is Thebault's first journey in three months on the ship that set a speed sailing record of over 50 knots in 2009, and now he is ready to attempt to best a crossing mark: reaching Hawaii from the City of Angels in under 4.19 days. "We want that record," the fiery and passionate Frenchman said. A key to that goal is to keep the Hydroptere intact. It's broken down four times. "The first challenge is to keep the structure," said Alain Thébault of France, skipper of the "Hydroptère" the sailor. yacht, on a test run in Los Angeles, California on May 20, 2015 "It will work well in flight stability between 20 and 29 knots with three-meter swells," Thebault said. Skimming across the surface of the vast Pacific, Alain Thebault scans the horizon with his blue Breton eyes. He is feeling good. A record is there to be broken. "It's like a magic carpet," Thebault said aboard the cutting-edge "Hydroptere" sailboat, which he hopes to pilot halfway across the Pacific from Los Angeles to Honolulu in record time. Off the California coast under azur-blue skies, Thebault accelerated the hydrofoil supercraft to 30 knots as the 18-meter (60-foot) boat stands on three foils that claw the waves, lifting the hull fully out of the water. Alain Thébault of France stands next to the "Hydroptère" The few passengers cling to the side as they prior to attempting a record crossing from Los Angeles to experience the sensation of flying for a few Hawaii in under 4.19 days moments.