Tartan 27' owner
Join Date: Jan 2008
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What Jim posted makes sense based on the waterline length and sail area/displacement of these 2 boats. I'd think they would be pretty similar with the larger boat having the edge in speed.
What I wonder is do the Portsmouth Numbers take into account the planing ability of these hulls?
"The cure for anything is salt water~ sweat, tears, or the sea." ~Isak Denesen
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