Eric answered your quest about the A-Cat. He's right the A-Cat and Tornado are the only Olympic classes but the Hobie 16 is the only official PanAm Games multihull and International Youth Worlds multihull. It is interesting to note that the Hobie 16 sailors/class fought vigeriously to keep from becoming an Olympic class mainly because of the cost increases associated with being an Olympic boat. Vanguard now has one of its Lasers in the Olympics and it has actually hurt the class due to as mentioned increase cost and some top notch sailors that will win at all costs reguardless how they treat the for fun sailors. Also another great thing about the Hobie 16 class is the fact that it is the only small multihull class that is accessible to sailors with disabilities called the Hobie 16 Trapseat class. Sorry I went beyond the A-Class question, I just it might be of interest to note these facts.
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<br>Happy sailing!<br><br>