Ultim
The largest offshore racing trimarans: up to 32 m long and 23 m wide.Ultim 32/23 rule: LOA from 24 to 32 m, overall beam ≤ 23 m, air draft ≤ 120% of the longest hull length.
Class ruleDimensions and rules shared by every boat of a class, to keep racing fair.Class rule
Source: La jauge du Collectif Ultim (opens in a new tab) (Collectif Ultim)
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1 source · updated 24 Sept 2026
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