1991 Custom One off

A 90-foot aluminum sloop designed by Ed Dubois for polar and remote-water exploration. The hull is built for serious passagemaking, with a substantial beam of 21 feet and the volume needed for extended autonomy in demanding conditions. An IVECO diesel engine of 380 horsepower provides reliable auxiliary power.

Accommodation spans seven cabins with a dedicated crew quarters, offering flexible berth arrangements suitable for expedition teams, professional crews, or private groups of up to sixteen people. Five heads serve the accommodations. The yacht features a large saloon and an enclosed wheelhouse—both generous working and living spaces designed to function well in cold-weather voyages.

This one-off build has been continuously refined and maintained throughout its service history, with improvements made to reliability and systems. The yacht is equally suited to polar expeditions, long offshore cruising, scientific research missions, or professional charter work, while remaining appropriate for private ownership and use.