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Topic: Multihull

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	Reference.com/Encyclopedia/Multihull
		Multihulls include: proas, which have two differently sized hulls; catamarans, which have two similar hulls; and trimarans, which have a larger hull in the center and two smaller ones on either side.
		Multihull sailboats are typically much wider than the equivalent monohull, which allows them to carry no ballast, so they are typically faster than monohulls under equivalent conditions (see Nathaniel Herreshoff's "Amarylis", also 1988 America's Cup).
		Multihulls are substantially faster than monohulls, because the absence of ballast reduces their weight and the amount of drag through the water considerably, without reducing the amount of sail that they can carry, and because the waterline to width ratio is so large.
	www.reference.com /browse/wiki/Multihull (534 words)

	Multihull Maven - Seaworthiness
		So far it can be said with total confidence that a multihull, as a type of vessel, is at least as safe in any condition as a monohull.
		The classic image of multihull comfort is the glass of wine that remains un-spilled on the saloon table while the skipper does a mid Atlantic watch.
		Multihulls are light, and have low roll inertia - in technical jargon the tendency to roll is very highly damped.
	www.multihull-maven.com /Seaworthiness (767 words)

	MULTIHULL (Site not responding. Last check: 2007-10-18)
		In either case they are typically much wider than the equivalent monohull, which allows multihull sailboats to carry no ballast, so they are typically faster than monohulls under equivalent conditions.
		In other types multihulls are substantially safer than monohulls because they don't carry ballast and can therefore float even when severely damaged.
		Until the 1980s most multihull sailboats were built either by their owners or by boatbuilders on a semi-custom basis.
	www.yotor.org /wiki/en/mu/Multihull.htm (438 words)

	KC Sail Sport and Adventure Co. - Boating Safety: Monohull vs. Multihull (Site not responding. Last check: 2007-10-18)
		Multihull Offshore racing was also never banned, just underwent a rewrite of rules to ban things like self-tailing winches on spinnaker sheets and limit mast heights and spinnaker size due to the capsize of three boats in one race.
		Yet some still claim a multihull capsize where the crew were saved and sustained by the capsized boat (119 days in one incident) is proof that multihulls are unsafe.
		Multihulls are just another type of boat with their own particular advantages and disadvantages.
	www.kcssa.com /stories/op/storiesView/sid/133 (830 words)

	Multihull Design Considerations for Seaworthiness
		Earlier multihulls with fixed keels and tris of type 2, are prone to tripping over their keels or amas when struck by a breaking crest.
		In a multihull with the boards retracted the lever arm (r) is reduced to the distance between the center of lateral resistance (CLR) of the downwind hull and the center of impact on the windward hull side.
		The multihull on the other hand can be made into a safe raft for the crew to live on in the inverted position, provided that proper provision for this eventuality has been made at the design stage.
	www.john-shuttleworth.com /Articles/NESTalk.html (5819 words)

	Sailing - Monohulls vs Multihulls
		A multihull substitutes its breadth or beam for the monohull's heavy keel.
		In other words, multihulls are very stable, but they do not tend to tell the sailor when they are overpowered.
		The multihull sailor should always be on the lookout for changing weather and be aware of wind strength and the necessity to shorten sail.
	www.boatsafe.com /nauticalknowhow/022599d.htm (1268 words)

	Multihull Maven
		For the crew of a multihull the disaster scenario is having to tackle the problem of survival and rescue on the unsinkable capsized hull
		With profiles of hundreds of multihull models, their designers and boat yards, this resource provides easy-to-browse and objective information on multihull craft.
		Multihull Maven's target is to describe all multihulls afloat, and more models are being added daily.
	www.multihull-maven.com (247 words)

	Multihulls WebRing
		Multihull Centre is a leading British multihull marketing and building business established by Pat Patterson in 1968 at Millbrook in Cornwall.
		Multihulls and WIG-crafts for DIY and professionals, catamarans from 4.35 m to 18 m, easy construction in the wwod (plywood) glass, epoxy system.
		The BCMS is dedicated to the construction, racing and cruising of multihull sail and powerboats in British Columbia (Canada) and beyond.
	d.webring.com /hub?ring=multihulls (1487 words)

	Multihull Council Report from the US Sailing AGM (Site not responding. Last check: 2007-10-18)
		It may be that in the effort to integrate multihulls into the yacht club mainstream, we have become a victim of our own success.
		To gain the recognition as a multihull sailor, US Sailing members need to check the multihull box on the back of their renewal forms.
		The Multihull Committee prepared a second resolution seeking recognition for a US Sailing Multihull Youth Championship and presented it as an Action Item to the Board of Directors and it failed 17 to 13.
	www.catsailor.com /forums/showflat.php?Cat=&Board=MHC&Number=12578&page=0&view=collapsed&sb=5&o=&fpart=1 (757 words)

	BUYING A MULTIHULL
		Load a multihull with a lot of extra gear and she becomes a slug pretty quickly.
		In some instances, if you are buying a well known brand of multihull, you can learn the truth about her sailing characteristics from knowledgeable sailors or brokers.
		The fact is, when you have a beamy multihull that can only be hauled at a few select yards, your negotiating posture for services is pretty weak.
	www.multihullsmag.com /magazine/articles/buying_a_multihull.htm (1852 words)

	The Multihull Source (Wareham, MA)
		Since 1996, The Multihull Source has been THE source for a full line of new and brokerage multihulls including: Corsair, Rave and Windrider.
		The Multihull Source offers an extensive line of parts and accessories, including TMS apparel and provides expert repair and maintenance services and seasonal storage.
		Managed by a team of experienced multihull sailors and racers -- Bob Gleason, Bert Kornyei, and Ira Heller -- the company organizes and participates in numerous events.
	www.yachtworld.com /themultihullsource (116 words)

	The Multihull Company (PA, USA)
		As a student at Harvard in the 1980's I represented the U.S. in numerous catamaran regattas all over the world, placing first, second, and third in world championship competition.
		No matter what sort of multihull you are looking for - whether new or used - we promise you expert advice and ethical, caring service.
		Please give us a call for a free one hour conversation about your next multihull - you'll be forever grateful that you did.
	www.yachtworld.com /multihull (377 words)

	RCSAILING.NET FORUMS - Australian RC multihull sailors
		To all people in Australia that are currently sailing rc multihull's or would like to get into them please let me know.
		I am interested in Multihulls as I am a beginner to which I would like to get into the sport.
		The contact in Victoria for multihull sailing is Andrew King in patterson lakes.
	www.rcsailing.net /forum1/printthread.php?t=68 (492 words)

	Multihull World Magazine - Introduction
		It is published 6 times a year and is one of a very limited number of magazines worldwide catering entirely to multihull sailing.
		Published in its current format since 1986, the magazine's success has increased with the rapid growth in popularity of multihull activity worldwide and particularly in Australia.
		The first, second, third and fourth issue are out now and can be purchased through our subscription page.
	www.multihull.com.au /www/about.htm (269 words)

	Multihull symposium report April 2002
		The more technical subjects included a very informative talk by Dave Irving on foam sandwich construction, Wiz Deas of Matrix Mouldings talking about composite materials and an explanation by Jim Wilkinson of the theory behind “Revelation II”, his HT 36’ catamaran that is powered by a wind turbine driving a large underwater propeller.
		Saturday evening saw more than two dozen guests sit down to a very convivial dinner, followed by an evening of multihull chat and tall tales until the bar closed, and even then the stalwarts continued partying on board the boats till almost dawn.
		On Sunday a completely different perspective on multihull cruising was revealed by David Waller of Aquacat when he outlined his 10m catamaran motor cruiser build project.
	www.themultihull.com /misc/symreport402.htm (360 words)

	BBC SPORT \| Other Sports \| Sailing \| French skipper seals multihull win
		French skipper Michel Desjoyeaux has won the multihull category of the Route du Rhum trans-Atlantic solo race.
		Of the 18 big multihulls that set sail from Saint-Malo on 10 November, 15 were forced to withdraw because of rough winds.
		The Swiss skipper, who was leading the multihulls until he capsized on Tuesday, was picked up by a rescue team on a tow boat.
	news.bbc.co.uk /sport1/hi/other_sports/sailing/2507845.stm (187 words)

	MYCQ Home
		Also included in our membership are most of Australia's principal multihull designers, many builders and other people in the marine industry.
		If you are interested in multihull sailing, please consider becoming a member of the MYCQ.
		Trailable multihulls, because of their mobility, regularly compete in the major open trailer sailer races of other clubs.
	www.mycq.org.au (248 words)

	Multihull Surveys
		Specialist surveys of multihulled yachts, by a qualified surveyor with many years of multihull experience:
		Steve Turner is well known as a builder and sailor of multihull yachts, having built more than thirty cruising multihulls from various designers, including the smallest catamaran to complete a circumnavigation and a Single Handed Transatlantic Race class winner.
		Steve has been surveying multihulls for 20 years, has a Diploma in Marine Surveying from the International Institute of Marine Surveyors and is a RYA tonnage surveyor.
	www.multihullsurveys.com (113 words)

	The Cruising Multihull : McGraw-Hill Professional Books
		Long typecast as the hotrods of the sea--fast but dangerous--modern cruising multihulls actually are among the safest and most comfortable cruising sailboats available.
		Modern multihulls offer significant advantages over single-hull sailboats: They sail faster, have more living space, they're more comfortable, more stable, they can sail safely in much shallower water, and, because their stability comes from widely spaced hulls and not from tons of lead hung off the keel, they don't sink.
		It will help you decide whether a multihull is right for you; which multihull--cat or tri--is best for your needs; whether you should build one yourself, have one built, or buy one off the rack.
	books.mcgraw-hill.com /getbook.php?isbn=0070698686 (347 words)

	folding multihull hull design - Boat Design Forums
		I am building a folding multihull (see attachment or www.fourhulls.com), to go on the roof of my car, not having much experience at hull design I have chosen to use a NACA 65012 profile with semi circular tips (bottom and top).
		Of course this could all be bunkam, but I have put my money where my mouth is (as you can see from the build pictures on my website) and I will have some answers by the end of the summer.
		Your comment on drag reduction is valid for an aerofoil flying through a fluid, the surface creates bow/stern waves which should be minimised (now going outside my experience), so generally it is a reduction in wave drag that gives a large increase in speed.
	forums.boatdesign.net /showthread.php?s=&threadid=969 (2200 words)

	Multihull Dynamics, Inc. - Home
		This website is designed to help those interested in Multihull sailing locate materials and data related to multihull sailing vessels.
		It allows the user to compare one multihull sailboat in the database to another, as well as locate a wealth of literature related to Multihull Sailing vessels.
		I'm not sure how many square inches of heated surface there was but I'm sure you could cook steaks and potatoes for 12 or more.
	www.multihullcomparisons.com (366 words)

	Multihull Council
		Multihull sailors are also represented on many US SAILING committees by
		This is the website of US SAILING's Multihull Council formed in 1985.
		As the MHC celebrates its 20th anniversary, you are invited to explore these pages to learn more about multihulls and their activities including youth events.
	www.ussailing.org /multihull/index.asp (212 words)

	Darwin Multihull Regatta 2006 (Site not responding. Last check: 2007-10-18)
		The Multihull Association of the NT (MANTA) and the Darwin Sailing Club (DSC) invite all multihull sailors to a week of racing in Darwin from 8-15th July 2006.
		The Regatta is open to all multihulls including large multihulls (if there is enough interest).
		Tornados will be raced as a class and other off the beach catamarans will be raced in a mixed fleet although additional classes may be provided if there are enough entries from a specific class.
	www.ecobytesystems.com.au /dmr2006/home/home.htm (140 words)

	Multihull Production Sailboat Manufacturers : the Boat Design and Boatbuilding Directory
		Boatshop Philippines has been building custom multihull sailing yachts since 1981.
		Large custom cruising multihulls from 30' to 60'.
		With well over 800 Gemini's sailing, Performance Cruising is one of the world's most successful multihulls builders.
	www.boatdesign.net /directory/Sailboats_Multihull (187 words)

	AMYA Multihull Page (Site not responding. Last check: 2007-10-18)
		This page currently serves to be a central point in the multihull arena for
		..are very informative and cover many areas of Multihull interest.
		F³ - A multi hull hydrofoil RC yacht that flies on it's foils in 4 - 5 mph winds.
	www.amya.org /multihull (327 words)

	[No title]
		BATT sails are appearing on more and more performance multihulls......
		Now DF920 'Ngalawa' is the leading class and MOCRA handicap performer, having added the MOCRA Nationals and the 2004 RSYC Winter Series to an impressive list of results.
		Since the 1980's 'Batt' multihull sails have seen International success, starting with the Firebirds 'Reebok' and 'Phoenix'.
	www.battsails.com /multi.html (164 words)

	Multihull Yacht Sales Corsair (Site not responding. Last check: 2007-10-18)
		The event is based in Melbourne so Phil Day, the owner of Multihull Yacht Sales Australia, headed South for a 1800 km road trip.
		We had sailed up from Hastings Marina the night before and had drinks with other crews in the bar of the Warneet YC for this terrific race.
		A 45 mile sail around French Island in Westernport, the premier event on the multihull calendar, attracting the best.
	www.multihulls.net.au /corsair/regattas.html (128 words)

	Chesapeake Multihull Association
		CMA is the Chesapeake Multihull Association (formerly the Chesapeake Cruising Multihull Association), a Chesapeake Bay sailing club founded in 1977, that:
		Focuses on having fun, cruising, and social activities, with a racing special interest group.
		Includes many catamaran and trimaran owners, plus others interested in Multihulls; many are experienced sailors, others are first timers looking for ways to get involved.
	www.chesapeakemultihulls.org (117 words)

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