Design and Construction
Gustafsson's late-decade design pairs a 10-foot-8-inch beam with a displacement of 13,228 pounds and 4,150 pounds of lead ballast, yielding a ballast-displacement ratio of 31.4 percent and a length-to-beam ratio of 3.08. The DL-ratio of 292 places the 321 among heavy cruisers, and that mass is concentrated in a fin-keel, spade-rudder monohull with solid fiberglass below the sheerline. The hull is fiberglass, and the boat's immersion rate of about 1,008 pounds per inch tells you how slowly she changes trim as load comes aboard — a reassuring number for long-term liveaboard or provisioning-heavy cruising. The capsize screening value of 1.80 and a Motion Comfort Ratio of 30.2 round out a statistical profile that emphasizes seakeeping and steadiness over outright speed, which the theoretical displacement-hull maximum of 7.0 knots confirms is not her design brief.
Rig and Handling
The 321 carries a masthead-sloop rig with a mast standing 45.3 feet above the waterline and a sail area of roughly 576 square feet, driving a hull whose wetted profile and 5-foot-4-inch draft suit maneuvering in typical coastal and ocean depths. Control-line dimensions are generous and standardized: jib and genoa sheets run 32.7 feet at a half-inch diameter, the mainsheet is an 81.9-foot half-inch line, and spinnaker sheets are 72 feet of the same diameter. Those figures indicate a cockpit laid out for secure, low-stretch control under load rather than featherweight racing trim. With a Yanmar diesel of 39 horsepower and 66 gallons of fuel against 116 gallons of water, the underbody is matched to a powerplant sized for reliable passage propulsion and battery charging rather than sprinting.
Accommodations
Her 116-gallon water capacity and 66-gallon fuel capacity suggest provisioning for extended time aboard, and the heavy-cruiser displacement ratio implies volume and stability oriented to comfort at anchor and at sea rather than minimalist racing accommodation.
The Verdict
The Nauticat 321 Sloop is a purpose-built small ocean cruiser from the Gustafsson-Siltala collaboration of the late 1990s, certified Class A and statistically weighted toward comfort and survivability. She is a straightforward, solidly specified 32-footer for the sailor who values certifiable offshore capability and steady motion over velocity.
Pros
- CE Class A (Ocean) certification for extended voyages
- Heavy-cruiser DL-ratio and 31.4% ballast ratio for stability
- Generous tankage (116 gal water, 66 gal fuel) for a 32-footer
- Standardized, heavy-control rigging dimensions for secure handling
Cons
- Theoretical hull speed of only 7.0 knots limits passage pace






