boatbuildlog

Design

Acquinus c57

Designed by Dudley Dix

A 17.39 m (57 ft 1 in) cruising catamaran by Dudley Dix, the foam sandwich fiberglass sister of his plywood DH550. The stern is extended aft of the rear beam and the sheer is restyled, with glass or carbon laminates. Overall beam is 8.7 m, half-load displacement 12,500 kg, with daggerboards or fixed cruising keels and twin 50 hp diesels. The page spells the name both Aquinus and Acquinus.

Dix says the composite build is more complex than the plywood DH550, needs specialised skills and costs more, and he steers builders without those skills to the plywood boat. Moulded components for owner assembly were also planned by a European builder. Expect well over 10,000 hours as a rough guide. Measured medians from build logs appear below.

What building a Acquinus c57 actually takes

Medians from the build logs kept on this site, not the designer’s estimate. Nobody has logged this boat here yet, so they are empty until the first builder does.

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Build logs
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Median months

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Boats like this one

Same type, closest in length.

Design Plans from LOA Logs
DH550 Dudley Dix Yacht Design 54′ 11″ (16.75 m) 0
DH550 Charter Dudley Dix Yacht Design 54′ 11″ (16.75 m) 0
Spirited 480 Spirited Designs 14.8 m (48′ 7″) 0
Crossover Spirited Designs 14.74 m (48′ 4″) 0
Dix 470 Dudley Dix Yacht Design 46′ 9″ (14.24 m) 0
Dix 430 Dudley Dix Yacht Design 43′ 2″ (13.15 m) 0