the max is 2.5 meters. Having a fixed beam of 2.66 would make the boat class illegal. Wing tip to wing tip.. Not hull to wingtip..
relevant rule. (from website)
1.2.3 Wings may be carried as long as the equivalent overall beam, when measured over the platform, and one fully extended wing is 2.5 m or less.
You just answered your question by quoting the rule. The platform width of a Taipan is 2.34m. One extended wing is 0.16m which would make it to 2.5m. But wing to wing it is 2.66m.
