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Gomboc: a Design High-Flier for ETNZ
34 BREEZE MAGAZINE Gomboc: A design high-flier for ETNZ By Ivor Wilkins Among the many talents and skills brought to bear on the design and development of Emirates Team New Zealand’s winning boat for the 35th America’s Cup was an extremely valuable but highly secret contributor called Gomboc. Wikipedia devotes considerable space to guiding us through the arcane world of physics and mathematics to define a notion first imagined in 1995 by Russian mathematician Vladimir Arnold. However, Dan Bernasconi, who presided over ETNZ’s design brains trust, obliges That aggression applied across for example, the cycling decision was with a simplified definition: “Gomboc is the the board to create the features that adopted early and Ashby refused to name of a mathematical shape which has distinguished the Kiwi campaign, including employ grinders to prevent any threat exactly two positions of equilibrium, one of the cycling system, appendages and foil of reverting to traditional thinking. As an which is stable and the other is unstable.” and wing control systems. aside, Bernasconi revealed that the cycle In the world of foiling, the search is Reinforcing that aggression concept, system, which proved so beneficial not for equilibrium against an array of team managing director Grant Dalton just in delivering more power but in freeing forces constantly threatening instability. added: “We knew we couldn’t outspend more hands to help control the boat, might Appropriately then, Gomboc was the name them, so we had to out-think them. We have gone even more radical. given to a highly sophisticated in-house had a saying that we wanted to throw the The team looked hard at having the software program aimed at overcoming design ball out as far as we could and see cyclist lie prone to further reduce windage, those hostile forces and achieving the high- if we could get to it.” but just could not find the space to make speed equilibrium that enabled the team to Crucially, stretching the performance that work. -
Convergent Evolution of Boats with Sails A
www.nature.com/scientificreports OPEN Convergent Evolution of Boats with Sails A. Bejan1*, L. Ferber2 & S. Lorente3 This article unveils the geometric characteristics of boats with sails of many sizes, covering the range 102–105 kg. Data from one hundred boat models are collected and tabulated. The data show distinct trends of convergent evolution across the entire range of sizes, namely: (i) the proportionality between beam and draft, (ii) the proportionality between overall boat length and beam, and (iii) the proportionality between mast height and overall boat length. The review shows that the geometric aspect ratios (i)–(iii) are predictable from the physics of evolution toward architectures that ofer greater fow access through the medium. Nature impresses us with images, changes and tendencies that repeat themselves innumerable times even though “similar observations” are not identical to each other. In science, we recognize each ubiquitous tendency as a distinct phenomenon. Over the centuries, our predecessors have summarized each distinct phenomenon with its own law of physics, which then serves as a ‘frst principle’ in the edifce of science. A principle is a ‘frst principle’ when it cannot be deduced from other frst principles. Tis aspect of organization in science is illustrated by the evolution of thermodynamics to its current state1,2. For example, 150 years ago the transformation of potential energy into kinetic energy and the conservation of “caloric” were fused into one statement—the frst law of thermodynamics—which now serves as a frst-principle in physics. It was the same with another distinct tendency in nature: everything fows (by itself) from high to low. -
Binnen-Yardstick Tiefwasser 2008
Österreichischer Segel-Verband Binnen-Yardstick Tiefwasser 2008 Die Zusatzbuchstaben nach der Bootstype bedeutet: HBK Hubkiel KMK Kimmkiel KLS Kielschwerter KUK Kurzkiel MTK Mittelkiel SCH Schwert SWK Schwenkkiel 11 metre One Design 86 14-Foot-Dinghi 93 18-Foot-Skiff 74 29er 100 49er 78 808er 100 8m One Design HBK 7/8 Spi 91 8m One Design HBK Topspi 89 A A-Cat 76 AS 21 -> K21 Achat-Jolle 121 Achilles 24 110 Akros (12m Mast) 90 Akros (bis 13m) 84 Akros (bis 14m) 83 Akros (gr. 14m) 82 Albin Express 102 Albin Viggen 115 Alp Sail Putiferio V 97 Alpa 22 117 Alpa 515 113 Alpa 550 124 Anderson 22 120 Aquila Kiel 113 Aquila Schwert 110 Argo 680 N 99 Asso 99 (Standard) 83 Assunta (Krainer) 96 Atalanta 616 110 B BB 11 122 BB 17 119 Balaton 21 MTK 112 Balaton 24 MTK 112 Balaton 25 MTK 113 Ballad 107 Bandholm 24 117 Banner 1/2 tonner 99 Banner 23 Racer MTK 93 Banner 28 Racer 100 Bavaria 29 Speed N 101 Bavaria 30/300 111 Bavaria 32 106 Bavaria 34 96 Bavaria 606 MTK 116 Bavaria 707 HBK 116 Bavaria 707 MTK 113 Bavaria 760 MTK 113 Bavaria 770 HBK 113 Bavaria 770 MTK 112 Bavaria 808 115 Bavaria 820 MTK 111 Bénéteau 25 siehe Platu 25 Blue Sail 24 N 94 Bianca 27 115 Bianca 28 111 Bianca 36 101 Big Gipsy 11,9m² 122 Big Gipsy 14m² 120 Biga 24 MTK 114 Binnenkieler 30m² V 100 Bolero 122 Bongo Kielskiff N 97 Brenta 24 Blue Sail 24 N 94 Brenta 30 N 87 Brio 23 115 C C&C 25 111 C&C 26 110 C&C 27 108 C&C 30 107 C&C 33 102 C&C 34 102 C&C 35 91 CBS 750 MTK 114 CR 25 Cruiser 97 Cadet (Jugendboot) 152 Calif 120 Caprise 113 Carina MTK + KLS 134 Carrera Formula Uno 85 Carrera Helmsman 91 Catalina22->Jaguar22 Challenger 22 SWK 124 Chaps 30 V 88 Chess N 106 Comet(ino) 700 MTK Normal 118 Comet(ino) 701 MTK 112 Comet(ino) 770 MTK 114 Comet(ino) 800 MTK 113 Comet(ino) 801 MTK 112 Comet(ino) 860 108 Commander 31 109 Condor 55 HBK 121 Condor 70 HBK 114 Conger 118 Conrad 20 123 Conrad 600 MTK 119 Conrad 760 GT 117 Contender 103 Contest 25 119 Contest 27 114 Contest 28 113 Contest 30 109 Corsair F31 Tri 92 Corsaire 123 D Daimio 116 Dart 18 84 Defender 27 111 Dehler 18 111 Dehler 22 MTK 112 Dehler 25 Cr. -
Midwinter Regatta Notice of Race February 18 & 19, 2012*
“YOUR BODY IS AN EXTENSION OF YOUR BOAT, SO MAINTAIN IT JUST AS YOU WOULD YOUR HARDWARE & SAILS” March 2011 Sailing World Neurosurgeon, Dr. Robert Bray, Jr. and colleague Peter Drasnin racing their Open 5.70 in Marina del Rey, CA. Check out the full article in the March 2011 edition of Sailing SENSIBLE SOLUTIONS FOR THE ACTIVE SAILOR SERVICES DISC Sports & Spine Center is one of America’s foremost providers • Spine Care of minimally invasive spine procedures and advanced arthroscopic • Orthopedics techniques. Dr. Robert S. Bray, Jr. founded DISC with the vision of • Sports Medicine delivering an unparalleled patient experience for those suffering from sports injuries, orthopedic issues and spine disorders in a one-stop, multi- • Pain Management disciplinary setting. With a wide range of specialists under one roof, the • Soft Tissue result is an unmatched continuity of care with more efficiency, less stress • Chiropractic Care for the patient and a zero MRSA infection rate. • Rehabilitation DISC SPORTS & SPINE CENTER Marina del Rey / Beverly Hills / Newport Beach 310.574.0400 / 866.481.DISC (3472) www.discmdgroup.com An Official Medical Services Provider of the U.S. Olympic Team The 83rd Annual SCYA Midwinter Regatta Notice of Race February 18 & 19, 2012* 1.0 RULES The regatta will be governed by the rules as defined in The Racing Rules of Sailing, 2009-2012 (“RRS”). 2.0 ELIGIBILITY AND ENTRY 2.1 Each entrant must be a member of a yacht club or sailing association belonging to the Southern California Yachting Association (SCYA), US SAILING, the Southern California Cruiser Association (SCCA), or the American Model Yacht Association (ACMYA). -
Wingps 5 Voyager
Polairdiagrammen -Squib ALBIN ALPHA Auklet 9 Bavaria 33cr Bavaria 42 Bianca III 1 Ton Albin Ballad AVANCE 24 Bavaria 34 1.85 Bavaria 42cruiser BIRDIE 32 1-Tonner OO Albin Balled Avance 36 Bavaria 34 AC Bavaria 430 lagoon Blue Moon 8 mtr. 100D 50 ALBIN DELTA B 26 BAVARIA 34 CRUISER Bavaria 44 1.65 Blusail 24 116 Jezquel Albin Nova B 31 Bavaria 34 Bavaria 44 AC 03-0 bno 183 11_Metre Albin Singoalla B&C 41 BAVARIA 340 C Bavaria 44 Vision BOLING 1D35 ALBIN STRATUS B&C IMS37CR Bavaria 340 x 1.70 Bavaria 44 BONGO 870 1D48 ALBIN VEGA 27 B&C46 Bavaria 34_3x1.35 Bavaria 44x1.95 BONGO 9.60 1_2 TON ONE OFF ALBIN VIGGEN B-32 Bavaria 35 exlc. Bavaria 46 2.00 BONIN 358 1_2 Ton ALC 46 BA 40 BAVARIA 35 HOLIDAY BAVARIA 46 C Bonita 767 1_2 Tonner ALEKSTAR 25 BAD 27 Bavaria 35 Holyday BAVARIA 46 CR Bonita767x1.40 1_4 TON ONE OFF Alligator BAD 37 Bavaria 35 Match D BAVARIA 46 CRUISER Bood 28 1_4 Ton ALO 28 Bahama 43 Bavaria 35 match BAVARIA 46 HOLIDAY Bood 36 2 TONNER Aloa 27 Sport BAKKE 26 BAVARIA 350 Bavaria 46 x 2.00 Booty 24 312 PLUS ALOA 27 BALLAD Bavaria 36 AC 2003 BAVARIA 46 Bosgraaf 37x1.9 50 ‘ IOR ALPA 12.70 Baltic 35 Bavaria 36 AC 98-9 BAVARIA 47 BOXER 24 7 m S ALPA 34 Baltic 37 x2.10 Bavaria 36 AC BAVARIA 50 Brabant II 717 ALPA SUPERMAICA Baltic 37 BAVARIA 36 C Bavaria 50x2.0 BRABANT 747 ALU 41 Baltic 37x2.06 Bavaria 36 CR 01-0 BAVARIA 707 BRAMADOR 34 8 M ALU 980 Baltic 38 BAVARIA 36 CRUISER Bavaria 820x1.30 Breehoorn37x1.90 8 Metres JI Alu. -
Southern California Yachting Association
1 Southern California Yachting Association Attention One Design/ PHRF/Cruisers/RC Model Boaters/ Predicted Log and Dinghy Racers Enter the 91st Midwinter Regatta 2020 February 8 and 9 or February 15 and 16, 2020 The two-weekend format, stretching from Morro Bay to Baja California and points east, will again enable host yacht clubs to select the best fit for racers wishing to participate in this unique event. This yachting tradition is a chance to test your skills against the best skippers on the West Coast or provide an opportunity to experience the thrill of competitive racing for the first time. The SCYA Midwinter Regatta, the nation's largest sailing competition, offers 26 venues, attracts more than 600 competing boats, 100 classes and more than 2,500 sailors. Our Midwinter Committee has been working closely with SCYA, the regatta's commercial sponsors and participating host clubs to ensure everyone has a great time. Each hosting yacht club showcases what they have to offer the sailing community. The Southern California Yachting Association, now in its 99th year of service, continues to facilitate member club communications, sponsors a variety of boat safety seminars, club management training, honor and service awards and much more. 90 years of successful past Midwinter venues tell the story about this unique event. You will have a great racing experience. You will find networking opportunities. Most importantly, you will have a great time on the water! Pick your class, club, and race dates and sign up early. For the 2020 Midwinter, racers will be able to register and pay entry fees online at SCYA’s website: www.scyamidwinterregatta.org. -
Seite 1 Von 3 VELUM Ng
VELUM ng - Wettfahrt Seite 1 von 3 Deutsch- Schweizerischer Motorboot-Club e.V. XXXIX Regatta der Eisernen L31304457 Deutsch- Schweizerischer Motorboot-Club e.V. vorläufige Ergebnisliste 1.Wettfahrt 29. November 2014 Low-Point Wettfahrtleitung: Matthias Hagner & Jörn Thamm Auswertung: Markus Meyer 30.11.2014 - 13:49:07 Gruppe: (1,0) Bahn Lang (Yardstick) 1.Wf / Startzeit: 29.11.2014 12:15:00 PL. NAT SEGELNR BOOTSNAME STEUERMANN/- BOOTSTYP CLUB GES.ZEIT BER.ZEIT FRAU Nila-Ann by 1 GER 100 Team Black Jack CR 950 YCM 00:44:10 00:53:13 Bauen.ch 2 GER 832 Corvus Begher Thomas Longtze YLB 00:47:30 00:55:53 3 SUI 156 Sail North Schroff Daniel Esse 850 SVK 00:49:04 00:57:03 4 SUI 34 Mistral Maier-Ring, Adrian Blu 26 SSCK 00:50:55 00:57:52 5 VIII-3 HOC Neustadt Kaiser, Karlheinz 80er Seefahrtskreuzer YCL 00:54:09 00:58:14 6 AUT 7 seven B Bemetz, Jonas Sun Fast 3200 BSC 00:53:09 00:59:43 7 FRA 820 ToughCookie Eitner Andreas Longtze YCL 00:52:44 01:02:02 8 SUI 46 J Lane Seger, Benu J-88 SVB 00:53:40 01:02:24 9 SUI 160 Carondimonio Smits Sammy Libera B YC Arbon 00:43:46 01:02:31 Hans-Peter 10 GER 450 Jackpot J-70 BYCÜ 00:59:25 01:03:13 Burckhardt 11 GER 3242 Plan/B Lochbrunner Andi B/One LSC 01:00:21 01:03:32 12 Ger 2053 Ralf Breitenfeldt Streamline MYC 00:57:57 01:03:41 van Merkesteyn, 75er Nationaler 13 O 12 Vinga YCL 00:58:46 01:04:35 Roel Kreuzer 14 SUI 33 - Flessati Julian Blu 26 SC Rietli 00:57:52 01:05:45 15 GER 820 Ti Punsh Graf Elmar First Class 8 SCMB 01:03:02 01:06:21 16 AUT 66 Vento Hämmerle Urs Modulo 90 BSC 01:01:48 01:06:27 Speedwave -
Passover Jewish Roots of Residents of the Colonial St
Editorials ..................................... 4A Op-Ed .......................................... 5A Calendar ...................................... 6A Scene Around ............................. 9A Synagogue Directory ................ 11A News Briefs ............................... 13A WWW.HERITAGEFL.COM YEAR 45, NO. 29 MARCH 19, 2021 6 NISAN, 5781 ORLANDO, FLORIDA SINGLE COPY 75¢ PAGE 2A HERITAGE FLORIDA JEWISH NEWS, MARCH 19, 2021 JAO’s future home builders and fund raisers continue the tradition. I am so of decent housing but also school delivers a whole-child appreciative of all of the sup- the importance of support- education fostering academic port that Jewish Academy of ing those in need,” said Amy excellence and character Orlando has given our Habitat Polacek, director of academ- education rooted in Jewish affiliate through the years,” ics. “We are committed to values. Jewish Academy of stated George. giving all of our students even Orlando is accredited by the “We are grateful for our more opportunities, lessons, Florida Council of Indepen- partnership with Habitat for and resources to change the dent Schools. Humanity and the opportu- world.” To learn more about Jewish nity for learning it gives our Jewish Academy of Or- Academy of Orlando, please students. The program not lando serves central Florida visit: jewishacademyorlando. only brings to life the les- students of all faiths from org or follow the school on sons in the classroom such transitional kindergarten Facebook facebook.com/ as budgeting and the benefits through fifth grade. The JewishAcademyOrlando. Pavilion’s Purim party pleases Hal George gives instructions to the Jewish Academy of Orlando second graders. Jewish Academy of Orlando money to support Habitat for founder of the Winter Park second-graders raised funds Humanity. -
August 2005 Volume 45.06
August 2005 Volume 45.06 and we look forward to your Harbourmaster’s quick return to the Club. Report Lots of good sailing and IN MEMORIAM by – John Irvin activities to come. Vice-Commodore See you on the water. It is with the most profound sadness that we report the death of life long member Past Commodore (1975-76) Projects Report BLAIR BENTICK COOK on ot really much to N by – Andrew Hope Thursday, July 21, 2005 report at this time of year. Rear Commodore The boys are doing a good The Board of Directors and job keeping up with routine Members of Britannia Yacht Club maintenance and repairs. The harbour wall boards extend their deepest sympathy to are being refurbished. his beloved wife, Tish Watch for better signage at and all his many, many friends. the gas dock and in restricted use areas. Several new large boats I have missed several will arrive over the next issues of the Full & By with couple of weeks, and only a the Projects Report. This couple are scheduled to situation has evolved out of IN MEMORIAM leave - net gain. the flurry of activity Water levels are surrounding the Special extremely low and likely to It is with profound sadness that we General Meetings and the remain so with high loads in inconclusive nature of this report the death of the hydro-electric system. work until the pivotal June 27, Be careful around the boiler 2005 meeting. I say pivotal HOWARD PECK, Major (Ret.) and the harbour entrance because after a protracted and, of course, in all the and Chief Commander, period of consultation, usual trouble spots on the explanation and more con- Canadian Power & Sail river. -
Notice of Race 2019 Bayview One Design Regatta May 31 – June 2, 2019
Notice of Race 2019 Bayview One Design Regatta May 31 – June 2, 2019 Bayview Yacht Club Lake St. Clair Detroit, Michigan 1 “As a sailing community we need to make a point of supporting the brands that support us.” – Comm. Cornelius Crumpledump Bayview Yacht Club is pleased to announce partnerships with the following brands. Without their support the scope of this event would be greatly reduced. Please drink, wear, and sail the following brands while acknowledging their CONTINUED & CONSISTENT SUPPORT of our fun. 2 1 RULES 1.1 Bayview Yacht Club is the Organizing Authority (OA) for the 2019 Bayview One Design Regatta (BOD). 1.2 The BOD will be governed by the rules as defined in The Racing Rules of Sailing (RRS). 1.3 In accordance with the US Sailing prescription to RRS 88.2, RRS 61.4 (a US Sailing prescription) and the US Sailing prescriptions to RRS 40, 60.3, 67, 70.5(a) and 76.1 will apply at all times. No other prescriptions will apply. 1.4 RRS A2 and 62 will be changed as stated in 10.1, 13.1 and 14.5 of this NOR. The Sailing Instructions may change other racing rules. 2 ADVERTISING 2.1 The OA may require that sponsor or other regatta stickers be attached to each side of each boat. 2.2 Advertising is permitted in accordance with ISAF Regulation 20, Advertising Code, except as restricted by applicable class rules. Boats that intend to display advertising must so indicate on their entry form. Competitors are requested to respect the brand exclusivity of the sponsors of the regatta. -
2019 One Design Classes and Sailor Survey
2019 One Design Classes and Sailor Survey [email protected] One Design Classes and Sailor Survey One Design sailing is a critical and fundamental part of our sport. In late October 2019, US Sailing put together a survey for One Design class associations and sailors to see how we can better serve this important constituency. The survey was sent via email, as a link placed on our website and through other USSA Social media channels. The survey was sent to our US Sailing members, class associations and organizations, and made available to any constituent that noted One-Design sailing in their profile. Some interesting observations: • Answers are based on respondents’ perception of or actual experience with US Sailing. • 623 unique comments were received from survey respondents and grouped into “Response Types” for sorting purposes • When reviewing data, please note that “OTHER” Comments are as equally important as those called out in a specific area, like Insurance, Administration, etc. • The majority of respondents are currently or have been members of US Sailing for more than 5 years, and many sail in multiple One-Design classes • About 1/5 of the OD respondents serve(d) as an officer of their primary OD class; 80% were owner/drivers of their primary OD class; and more than 60% were members of their primary OD class association. • Respondents to the survey were most highly concentrated on the East and West coasts, followed by the Mid- West and Texas – though we did have representation from 42 states, plus Puerto Rico and Canada. • Most respondents were male. -
Monthly Newsletter October 2000
October 2000 Monthly Newsletter From the Commodore Board of Directors Commodore Rob Wilson Im. Past Commodore Voldi Maki As I told you in a previous Telltale, dock, moving an existing dock to Vice Commodore Phil Spletter we are taking advantage of the low this location, or moving a small Secretary Gail Bernstein lake level to prepare for some pos- dock if we reduce the length of one Treasurer Becky Heston sible harbor modifications. Using or more of our existing docks. the recently completed topographic Race Commander Bob Harden Project 3 - Widen the north Buildings & Grounds Michael Stan survey, Ray Schull and Tom Groll have prepared some prelimi- ramp. This proposal is to ex- Fleet Commander Doug Laws cavate the area to allow us to Sail Training Brigitte Rochard nary plans for three possible modifications to the harbor. double the width of the current ramp. This would allow for AYC Staff Project 1 - Excavate the area multiple boats to launch/ General Manager Nancy Boulmay under the regular location of Docks retrieve and greatly reduce the Office Manager Cynthia Eck 2 - 6. This project would allow the congestion and waiting required at Caretakers Tom Cunningham docks to remain in their regular lo- the ramp. This work will also re- Vic Farrow cation until the lake level reaches duce the silt buildup on the ramp 655’. Currently docks 4, 5, and 6 by properly sloping back the have been relocated to the point ground from the new ramp edge. Austin Yacht Club approximately 21% of the time We also propose to repair the ero- 5906 Beacon Drive since 1980.