A.Y.R.S. PUBLICATION No. 10
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Borobudur 1 Pm
BOROBUDUR SHIP RECONSTRUCTION: DESIGN OUTLINE The intention is to develop a reconstruction of the type of large outrigger vessels depicted at Borobudur in a form suitable for ocean voyaging DISTANCES AND DURATION OF VOYAGES and recreating the first millennium Indonesian voyaging to Madagascar and Africa. Distances: Sunda Strait to Southern Maldives: Approx. 1600 n.m. The vessel should be capable of transporting some Maldives to Northern Madagascar: Approx. 1300 n.m. 25-30 persons, all necessary provisions, stores and a cargo of a few cubic metres volume. Assuming that the voyaging route to Madagascar was via the Maldives, a reasonably swift vessel As far as possible the reconstruction will be built could expect to make each leg of the voyage in using construction techniques from 1st millennium approximately two weeks in the southern winter Southeast Asia: edge-doweled planking, lashings months when good southeasterly winds can be to lugs on the inboard face of planks (tambuku) to expected. However, a period of calm can be secure the frames, and multiple through-beams to experienced at any time of year and provisioning strengthen the hull structure. for three-four weeks would be prudent. The Maldives would provide limited opportunity There are five bas-relief depictions of large vessels for re-provisioning. It can be assumed that rice with outriggers in the galleries of Borobudur. They sufficient for protracted voyaging would be carried are not five depictions of the same vessel. While from Java. the five vessels are obviously similar and may be seen as illustrating a distinct type of vessel there are differences in the clearly observed details. -
On the Great Trimaran-Catamaran Debate
On the Great Trimaran-Catamaran Debate Lawrence J. Doctors, Member, School of MechanicnJ and Manufacturing Engineering, The University of New South Wales, Sydney, NSW 2052, Australia Abdmct In the cumwtt work, a aydewaatic investigation into a variety of monohulls and mul- tihulls is carried out with an emphasis on finding optimal forms. Vessels with up to six identical subhulls are taken into consideration and a large range of lengths is studied. hT- thermore, sidehuli trimaran configurations are included in the investigation. There are two main purposes to this investigation. Firstly, one is interested in mini- mizing the wave resistance, becawe this is closely related to the wave generation and is of critical importance to the operation of river ferries. Secondly, it is also important to min- imize the total resistance, in order to reduce fuei costs and to permit long-range trips for ocean-going vessels. The theoretical predictions show that increasing the length beyond that normally accepted is beneficial in reducing both the wave Resistance and often the total resistance. I. the goal is to minimize wave resistance and if the length is constrained, the calculations also demon- strate that trimarans are superior to catamarans, which are in turn superior to monohulls. On the other hand, if the goal is to minimize the total resistance, then all the muh!ihulis (~m catamarans to hezamarans) are inferior to monohulls, except possibly at low speeds which are not of interest in thw study. Similarly, sidehull trimarans are shown to be inferior to catamarans except perhaps if rather great lengths are permitted. -
Trimarans and Outriggers
TRIMARANS AND OUTRIGGERS Arthur Fiver's 12' fibreglass Trimaran with solid plastic foam floats CONTENTS 1. Catamarans and Trimarans 5. A Hull Design 2. The ROCKET Trimaran. 6. Micronesian Canoes. 3. JEHU, 1957 7. A Polynesian Canoe. 4. Trimaran design. 8. Letters. PRICE 75 cents PRICE 5 / - Amateur Yacht Research Society BCM AYRS London WCIN 3XX UK www.ayrs.org office(S)ayrs .org Contact details 2012 The Amateur Yacht Research Society {Founded June, 1955) PRESIDENTS BRITISH : AMERICAN : Lord Brabazon of Tara, Walter Bloemhard. G.B.E., M.C, P.C. VICE-PRESIDENTS BRITISH : AMERICAN : Dr. C. N. Davies, D.sc. John L. Kerby. Austin Farrar, M.I.N.A. E. J. Manners. COMMITTEE BRITISH : Owen Dumpleton, Mrs. Ruth Evans, Ken Pearce, Roland Proul. SECRETARY-TREASURERS BRITISH : AMERICAN : Tom Herbert, Robert Harris, 25, Oakwood Gardens, 9, Floyd Place, Seven Kings, Great Neck, Essex. L.I., N.Y. NEW ZEALAND : Charles Satterthwaite, M.O.W., Hydro-Design, Museum Street, Wellington. EDITORS BRITISH : AMERICAN : John Morwood, Walter Bloemhard "Woodacres," 8, Hick's Lane, Hythe, Kent. Great Neck, L.I. PUBLISHER John Morwood, "Woodacres," Hythc, Kent. 3 > EDITORIAL December, 1957. This publication is called TRIMARANS as a tribute to Victor Tchetchet, the Commodore of the International MultihuU Boat Racing Association who really was the person to introduce this kind of craft to Western peoples. The subtitle OUTRIGGERS is to include the ddlightful little Micronesian canoe made by A. E. Bierberg in Denmark and a modern Polynesian canoe from Rarotonga which is included so that the type will not be forgotten. The main article is written by Walter Bloemhard, the President of the American A.Y.R.S. -
5 Must Read Sailing Books for Catamaran Enthusiasts
5 Must Read Sailing Books for Catamaran Enthusiasts This list briefly discusses 5 books that yacht owners or enthusiasts should read. What makes each book unique? Why should they read the book? What will they learn or take away from it? This is - at least what we consider - the best 5 books ever written in English on the subject of cruising catamarans. There are a few German and French publications but they are nearly impossible to get , most are out of print and unless you can read German or French - are of no value. So here is the top 5 list of the "Must Read books for Catamaran Enthusiasts" 1.) CATAMARANS - THE COMPLETE GUIDE FOR CRUISING SAILORS, by Gregor Tarjan. First published in 2006 and reprinted in 2008 by Mc Graw Hill Companies, New York. ISBN 9780071498852. Hardcover, 305 pages full color, large format, illustrated and lavish photography by Gilles Martin Raget. Of course we have to mention this book first. Not only is it written by our own Gregor Tarjan, founder and owner of Aeroyacht Ltd., but it is hailed as "the industry reference" by many experts. It has sold many thousands of copies around the world and has been re-printed numerous times. Jim Brown calls it "an authoritative guide for novices and experienced sailors, the best book written on the subject since the early 1990's" 2.) MULTIHULL SEAMANSHIP - Illustrated, by Dr. Gavin LeSueur. Illustrations by Nigel Allison. First published in Australia in 1995, Cyclone Publishers. ISBN 1875181032. Soft cover, spiral bound, large format, 108 pages, black and white. -
Senate 'Junk Mail' Costs to Be Disclosed That Ended Sept
Metuchen downs Keyport for title, IB MOSTLY CLOUDY Sodal Security Mostly cloudy today through tomorrow. Highs Game will range from 40 to 45 6B both days. The Register Complete forecast 2A. Vol. 108 No. 92 YOUR HOMETOWN NEWSPAPER...SINCE 1878 MONDAY, DECEMBER 9, 1985 25 CENTS MONDAY Foes seek to halt LOCAL Tinkering pays off Retired inventor's work in electronics plan for high-rise has gained several patents. Now he has a new one for a device that will would be expanded. Each is privately help electronics students. l| BOB NOT owned. The Register The 20-story, 168-unit hotel-condominium HIGHLANDS - Believing the character has been proposed perpendicular to Sandy STATE and ecology of the eastern Bayshore are in Hook Bay. straddling the Atlantic High- jeopardy, opponents of a proposed 20-story lands-Highlands border. Outnumbered hotel-condominium on the Atlantic High- Critics of the proposal, which has become Private treatment centers for lands-Highlands border said yesterday they a sensitive political issue, have become intend to defeat the proposal more vocal in recent months as residents emotionally disturbed Immediately affected oy construction of have become more aware of the two- teen-agers are not prepared to cope the waterfront high-rise and the accompany- borough project. with the growing number of ing proposed townhouses would be a 57-unit Gov. Thomas H. Kean and Rep. James J. youngsters transferred there from mobile home park and area wetlands. But Howard, p-N.J., each have written local New Jersey's overcrowded critics fear its Impact could be far-reaching. -
Meroz-Plank Canoe-Edited1 Without Bold Ital
UC Berkeley Survey Reports, Survey of California and Other Indian Languages Title The Plank Canoe of Southern California: Not a Polynesian Import, but a Local Innovation Permalink https://escholarship.org/uc/item/1977t6ww Author Meroz, Yoram Publication Date 2013 eScholarship.org Powered by the California Digital Library University of California The Plank Canoe of Southern California: Not a Polynesian Import, but a Local Innovation YORAM MEROZ By nearly a millennium ago, Polynesians had settled most of the habitable islands of the eastern Pacific, as far east as Easter Island and as far north as Hawai‘i, after journeys of thousands of kilometers across open water. It is reasonable to ask whether Polynesian voyagers traveled thousands of kilometers more and reached the Americas. Despite much research and speculation over the past two centuries, evidence of contact between Polynesia and the Americas is scant. At present, it is generally accepted that Polynesians did reach South America, largely on the basis of the presence of the sweet potato, an American cultivar, in prehistoric East Polynesia. More such evidence would be significant and exciting; however, no other argument for such contact is currently free of uncertainty or controversy.1 In a separate debate, archaeologists and ethnologists have been disputing the rise of the unusually complex society of the Chumash of Southern California. Chumash social complexity was closely associated with the development of the plank-built canoe (Hudson et al. 1978), a unique technological and cultural complex, whose origins remain obscure (Gamble 2002). In a recent series of papers, Terry Jones and Kathryn Klar present what they claim is linguistic, archaeological, and ethnographical evidence for prehistoric contact from Polynesia to the Americas (Jones and Klar 2005, Klar and Jones 2005). -
Wao Kele O Puna Comprehensive Management Plan
Wao Kele o Puna Comprehensive Management Plan Prepared for: August, 2017 Prepared by: Nālehualawaku‘ulei Nālehualawaku‘ulei Nā-lehua-lawa-ku‘u-lei is a team of cultural resource specialists and planners that have taken on the responsibilities in preparing this comprehensive management for the Office of Hawaiian Affairs. Nā pua o kēia lei nani The flowers of this lovely lei Lehua a‘o Wao Kele The lehua blossoms of Wao Kele Lawa lua i kēia lei Bound tightly in this lei Ku‘u lei makamae My most treasured lei Lei hiwahiwa o Puna Beloved lei of Puna E mālama mākou iā ‘oe Let us serve you E hō mai ka ‘ike Grant us wisdom ‘O mākou nā pua For we represent the flowers O Nālehualawaku‘ulei Of Nālehualawaku‘ulei (Poem by na Auli‘i Mitchell, Cultural Surveys Hawai‘i) We come together like the flowers strung in a lei to complete the task put before us. To assist in the preservation of Hawaiian lands, the sacred lands of Wao Kele o Puna, therefore we are: The Flowers That Complete My Lei Preparation of the Wao Kele o Puna Comprehensive Management Plan In addition to the planning team (Nālehualawaku‘ulei), many minds and hands played important roles in the preparation of this Wao Kele o Puna Comprehensive Management Plan. Likewise, a number of support documents were used in the development of this plan (many are noted as Appendices). As part of the planning process, the Office of Hawaiian Affairs assembled the ‘Aha Kūkā (Advisory Council), bringing members of the diverse Puna community together to provide mana‘o (thoughts and opinions) to OHA regarding the development of this comprehensive management plan (CMP). -
ORC Special Regulations Mo3 with Life Raft
ISAF OFFSHORE SPECIAL REGULATIONS Including US Sailing Prescriptions www.ussailing.org Extract for Race Category 4 Multihulls JANUARY 2014 - DECEMBER 2015 © ORC Ltd. 2002, all amendments from 2003 © International Sailing Federation, (IOM) Ltd. Version 1-3 2014 Because this is an extract not all paragraph numbers will be present RED TYPE/SIDE BAR indicates a significant change in 2014 US Sailing extract files are available for individual categories and boat types (monohulls and multihulls) at: http://www.ussailing.org/racing/offshore-big-boats/big-boat-safety-at-sea/special- regulations/extracts US Sailing prescriptions are printed in bold, italic letters Guidance notes and recommendations are in italics The use of the masculine gender shall be taken to mean either gender SECTION 1 - FUNDAMENTAL AND DEFINITIONS 1.01 Purpose and Use 1.01.1 It is the purpose of these Special Regulations to establish uniform ** minimum equipment, accommodation and training standards for monohull and multihull yachts racing offshore. A Proa is excluded from these regulations. 1.01.2 These Special Regulations do not replace, but rather supplement, the ** requirements of governmental authority, the Racing Rules and the rules of Class Associations and Rating Systems. The attention of persons in charge is called to restrictions in the Rules on the location and movement of equipment. 1.01.3 These Special Regulations, adopted internationally, are strongly ** recommended for use by all organizers of offshore races. Race Committees may select the category deemed most suitable for the type of race to be sailed. 1.02 Responsibility of Person in Charge 1.02.1 The safety of a yacht and her crew is the sole and inescapable ** responsibility of the person in charge who must do his best to ensure that the yacht is fully found, thoroughly seaworthy and manned by an experienced crew who have undergone appropriate training and are physically fit to face bad weather. -
A Comparative Evaluation of a Hydrofoil-Assisted Trimaran
COMPARATIVE EVALUATION OF A A HYDROFOIL-ASSISTED TRIMARAN Thesis presented in partial fulfillment of the requirements for the degree MASTER OF SCIENCE IN ENGINEERING By Ryno Moolman Supervisor Prof. T.M. Harms Department of Mechanical Engineering University of Stellenbosch Co-supervisor Dr. G. Migeotte CAE Marine December 2005 Declaration I, the undersigned, declare that the work contained in this thesis is my own original work and has not previously, in its entirety or in part, been submitted at any University for a degree. Signature of Candidate Date i Abstract This work is concerned with the design and hydrodynamic aspects of a hydrofoil-assisted trimaran. A design and configuration of a trimaran is evaluated and the performance of a hydrofoil-assisted trimaran is effectively compared to the performance of a hydrofoil-assisted catamaran with similar overall displacement and same speed. The performance of the trimaran with different outrigger clearances are also evaluated and compared. The hydrodynamic aspects focuses mainly on the performance and to a lesser extend on the sea-keeping and stability of a hydrofoil-assisted trimaran. The results were determined by means of experimental testing, theoretical analysis and numerical analysis. The project was initiated as a result of the success of the hydrofoil-assisted catamarans and due to the fact that there does not exist a hydrofoil-assisted trimaran (to the author’s knowledge) where the main focus of the foils is to significantly reduce the resistance. A brief history, recent developments and associated advantages regarding trimarans are discussed. A complete theoretical model is presented to evaluate the lift and drag of the hydrofoils, as well as, the resistance of the trimaran. -
The Practical Design of Advanced Marine Vehicles
The Practical Design of Advanced Marine Vehicles By: Chris B. McKesson, PE School of Naval Architecture and Marine Engineering College of Engineering University of New Orleans 2009 Version: Fall 2009 rev 0 This work sponsored by: US Office of Naval Research Grant No: N00014‐09‐1‐0145 1 2 CONTENTS 1 Summary & Purpose of this Textbook ................................................................................................ 27 1.1 Relationship of the Course to Program Outcomes ..................................................................... 28 1.2 Prerequisites ............................................................................................................................... 28 1.3 Resources .................................................................................................................................... 28 1.3.1 Numbered references cited in the text ................................................................................. 29 1.3.2 Important references not explicitly cited in the text ............................................................ 31 1.3.3 AMV Web Resources ............................................................................................................. 32 1.3.4 AMV Design Agents ............................................................................................................... 32 1.3.5 AMV Builders ......................................................................................................................... 33 2 A Note on Conventions ...................................................................................................................... -
Linguistic Evidence for a Prehistoric Polynesia—Southern California Contact Event
Linguistic Evidence for a Prehistoric Polynesia—Southern California Contact Event KATHRYN A. KLAR University of California, Berkeley TERRY L. JONES California Polytechnic State University Abstract. We describe linguistic evidence for at least one episode of pre- historic contact between Polynesia and Native California, proposing that a borrowed Proto—Central Eastern Polynesian lexical compound was realized as Chumashan tomol ‘plank canoe’ and its dialect variants. Similarly, we suggest that the Gabrielino borrowed two Polynesian forms to designate the ‘sewn- plank canoe’ and ‘boat’ (in general, though probably specifically a dugout). Where the Chumashan form speaks to the material from which plank canoes were made, the Gabrielino forms specifically referred to the techniques (adzing, piercing, sewing). We do not suggest that there is any genetic relationship between Polynesian languages and Chumashan or Gabrielino, only that the linguistic data strongly suggest at least one prehistoric contact event. Introduction. Arguments for prehistoric contact between Polynesia and what is now southern California have been in print since the late nineteenth century when Lang (1877) suggested that the shell fishhooks used by Native Hawaiians and the Chumash of Southern California were so stylistically similar that they had to reflect a shared cultural origin. Later California anthropologists in- cluding the archaeologist Ronald Olson (1930) and the distinguished Alfred Kroeber (1939) suggested that the sewn-plank canoes used by the Chumash and the Gabrielino off the southern California coast were so sophisticated and uni- que for Native America that they likely reflected influence from Polynesia, where plank sewing was common and widespread. However, they adduced no linguistic evidence in support of this hypothesis. -
Dugout Canoe Gr: Prek-2 (Lesson 6)
TRADITIONAL TRANSPORTATION: DUGOUT CANOE GR: PREK-2 (LESSON 6) Elder Quote/Belief: “Summer came and they would go around by boat. They made their first dugout canoes. They chopped down large cottonwood, and fashioned that into a canoe. They went in that into Eyak Lake. Then they tried spruce instead of cotton wood. That too was good. They carved large boats out of spruce.” -Anna Nelson Harry 1 Anna Nelson Harry, Yakutat, about 1975. (Photo courtesy of Richard Dauenhauer) Grade Level: PreK-2 Overview: The Eyak and Sugpiaq people traditionally carved dugout canoes in the Chugach Region, specifically in Prince William Sound. “The canoes were so seaworthy that they were used not just for interisland voyages to visit relatives or allies, but also to wage war and to engage in trade missions over hundreds of miles. In fact, dugout canoes plied the waters between Southeast Alaska, (Eyak) and Kodiak Island in the days before the coming of Europeans”. (Echo’s http://www.echospace.org/articles/273/sections/665.html) Standards: AK Cultural: AK Content Science: CRCC: E4: Culturally-knowledgeable students B2: A student should understand and MC1: Different kinds of wood have demonstrate an awareness and be able to apply the concepts, models, different qualities and different uses; appreciation of the relationships and theories, universal principles, and facts wood can be obtained from the forest processes of interaction of all elements in that explain the physical world. and from driftwood. the world around them. A student should determine how ideas and concepts from one knowledge system relate to those derived from another knowledge system.