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12-Metre Class Yachts - 12-Metre Class, Kz 7, Stars (Paperback) Loot Price: R261 Discovery Miles 2 610
12-Metre Class Yachts - 12-Metre Class, Kz 7, Stars (Paperback): Books Llc
12-Metre Class Yachts - 12-Metre Class, Kz 7, Stars (Paperback): Books Llc

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12-Metre Class Yachts - 12-Metre Class, Kz 7, Stars (Paperback)

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Loot Price R261 Discovery Miles 2 610

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Purchase includes free access to book updates online and a free trial membership in the publisher's book club where you can select from more than a million books without charge. Excerpt: The 12-metre class is a group of sailing vessels which, while not identical, are all designed to a particular formula - The International rule - so as to make the boats involved in a competition roughly comparable, while still giving individuals the freedom to experiment with the details of their designs. The first 12-metres were built in 1907 and the last in 1987. The 12-metre class was used in the Olympic Games of 1908, 1912 and 1920 but only few boats participated. The 12-metre class boats are probably best known for their use from 1958 to 1987 in the America's Cup. Rough equality between boats is ensured by requiring compliance with a formula that takes into account the length at the waterline, the girth (the measurement around the boat from one sideboard, under the keel and then back over the top on the opposite side back to the original side) and the sail area. The very carefully specified measurements are then entered into the formula, and the result must be 12 metres - hence the name of the class. Designers are free to change any of these variables (as well as other details, such as the size of the rudder and keel, etc.), with the understanding that for any change in any of the measured attributes, something else will have to be adjusted, in order to make the formula produce the required value. The "12-metre" in the class name does not refer to the actual length of the boats, which ranged from 65 to 75 feet (about 20 to 23 m) overall. They were all sloop-rigged, with their masts typically being about 85 feet (26 m) tall. The "12-metre" yachts are also referred to as "Twelves" or "12 Metres" The Formula and associated rules for designing and constructing 12-metre yachts has been modified several times from inception in racing. The pur... More: http://booksllc.net/?id=2178052

General

Imprint: Books + Company
Country of origin: United States
Release date: September 2010
First published: September 2010
Editors: Books Llc
Creators: Books Llc
Dimensions: 152 x 229 x 2mm (L x W x T)
Format: Paperback - Trade
Pages: 38
ISBN-13: 978-1-156-35188-8
Barcode: 9781156351888
Categories: Books
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LSN: 1-156-35188-X

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