Design and Construction
The Regatta 330 measures 33.17 feet overall with a 30.02-foot waterline, a beam of 11.19 feet, and a fin-keel, spade-rudder monohull configuration drawing 5.5 feet. Displacing 11,310 pounds with 4,210 pounds of iron ballast, the boat carries a ballast-to-displacement ratio of 37.22 percent and a displacement-to-length ratio of 186.63, figures that place her firmly in the moderate-displacement cruiser-racer class rather than the featherweight end of the spectrum. Her hull is solid fiberglass, and the deck is likewise solid fiberglass. The capsize screening ratio of 1.99 and comfort ratio of 22.63 speak to a vessel engineered for offshore stability rather than bare speed alone, while a sail-area-to-displacement ratio of 16.51 confirms a moderately powered rig suited to all-around cruising.
Rig and Handling
As a masthead sloop, the Regatta 330 carries 520 square feet of sail area and a masthead rig whose control lines follow practical, repeatable dimensions. Period specifications list the jib and genoa sheets at 10.1 meters (33.2 feet) with a 12 mm (1/2 inch) diameter, the mainsheet at 25.3 meters (82.9 feet) also in 12 mm, and the spinnaker sheets at 22.2 meters (73.0 feet) in the same 12 mm size anchor. Those uniform diameters simplify spares and deck organization for an owner, and the generous mainsheet length reflects the traveler geometry needed to trim a 520-square-foot main effectively. The hull speed of 7.34 knots is consistent with the 30-foot waterline, giving a predictable performance envelope under sail.
Accommodations
The builder specified 40 gallons of fresh water and 21 gallons of diesel in tanks, served by a single 19-horsepower Volvo Penta MD2020 diesel. The 11.19-foot beam and 33-foot hull provide the footprint for a conventional aft-cockpit cruiser interior of the mid-1990s Westerly school.
The Verdict
The Westerly Regatta 330 is a low-production Dubois design that repackages the Storm 33 hull within the Regatta range's performance-cruiser ethos. She is solidly built in single-skin fiberglass, sensibly rigged with uniform 12 mm control lines, and statistically stable for coastal and offshore use. Her rarity — fifteen built — means any buyer must weigh the scarcity of spares-specific hull parts against the benefit of a thoughtfully engineered late-Westerly design.
Pros
- Remodelled Storm 33 lineage under Ed Dubois's design hand
- Solid fiberglass hull and deck
- Moderate-displacement, stable proportions (37.22% ballast, 1.99 capsize screen)
- Uniform 12 mm sheet diameters ease gear replacement
Cons
- Only fifteen built, limiting used-market availability and shared owner knowledge
- Modest 21-gallon fuel capacity constrains long motoring legs



