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[quote=jack108136]International B-class catamaran
From Wikipedia, the free encyclopedia

Background
The B-class was founded during the 1960s and was part of the 4-tier IYRU (now ISAF) approach to divide up the sports catamaran sailing scene into 4 separate groups. These A, B, C and D classes were governed by a very small set of class rules to which each design had to comply.[1] In the beginning it was just:

IYRU catamaran classification
      Class      	   Max Length   	   Max Beam   	   Max Sail Area   	   Crew   
  A-Class  	           18’	                   7’6”	           150 ft²	                       1
  B-Class  	            20’	           10’	                   235 ft²	                       2
  C-Class  	            25’	           14’	                   300 ft²	                       2
  D-Class  	            32’	           16’	                   500 ft²	                       3
All boats designed and built to these specs would be grouped into one fleet and race each other for crossing the finish line first. The A-Class is the largest remaining of those 4 main classes, while the recent development in wing sail technology, the C-Class is enjoying a revival.

In 1967, the then International Yacht Racing Union (IYRU, now ISAF) decided to run a week long series of trials (August 5–12) to determine the best "A" and "B" classes of catamaran design to be selected for International status. The trials were held at the Catamaran Yacht Club, Isle of Sheppey (a small island in the Thames Estuary, 50 miles to the east of London), Kent, UK.[2] The B Class was easily won by a Tornado sailed by Reg White and Bob Fisher, who took six first places out of nine races. The Tornado went on to be used for the Olympics from 1976 onwards. Nearly 50 years later, the Tornado is still one of the highest performing B Class catamarans.

Have a pleasant Monday.[/quote]

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