Design and Construction
The Sun Fizz 40's hull is hand-laid fiberglass with a solid layup, while the deck uses a fiberglass sandwich to improve the cabin's thermal and acoustic comfort. Below the waterline, the wetted surface measures about 44 square meters, and the fin keel is iron, consistent with the 41 percent ballast ratio and 6,610 pounds of ballast carried on a 16,100-pound displacement. Her length-to-beam ratio of 3.19 and displacement-length ratio of 192 place her among what period analysis categorized as moderate racers rather than heavy displacement cruisers. The 2.0 capsize screening value is below the threshold accepted for ocean racing, a flat statement of the metric rather than a condemnation of her coastal or trade-wind cruising aptitude.
Rig and Handling
Briand gave the Sun Fizz 40 more than one rig option, with a masthead rig and an alternative masthead rig both documented. The standard masthead layout carries halyards of 35.6 meters for mainsail, genoa, and spinnaker, a mainsheet of 30.8 meters, and jib or genoa sheets of 12.3 meters — dimensions that speak to a sizable foretriangle and a powerful mainsheet traveler run. The sail-area-to-displacement ratio is 16.8 with the ISO reference sail and rises to 19.9 with a 135 percent genoa, a number that explains the lively performance potential under canvas. Under the Perkins diesel the boat makes 8.0 knots, against a theoretical displacement hull speed of 7.8 knots, and the immersion rate of about 263 kg per centimeter means she sits heavily when loaded.
Accommodations
The interior is teak, in keeping with widespread production-boat practice of the time. The deck sandwich construction is noted as a deliberate choice to soften the indoor climate, suggesting a cabin meant for extended living rather than bare racing. The teak joinery and climate-minded deck together describe a boat built for the cruising couple or family rather than the regatta crew.
The Verdict
The Sun Fizz 40 is a Briand-designed Jeanneau that pairs a moderate-racer hull with cruising-minded deck and interior choices. Her documented rig flexibility, strong sail plan with a 135 percent genoa, and substantial iron-ballasted fin keel make her a competent offshore-capable cruiser within her metric limits, though the capsize screening value and draft keep her out of sanctioned ocean racing and many shallow anchorages.
Pros
- Hand-laid fiberglass hull with sandwich deck for cabin comfort
- Two documented masthead rig options with generous sail plan (SA/D 19.9 with 135% genoa)
- Iron fin keel with 41% ballast ratio on moderate-racer DL of 192
Cons
- Capsize screening value of 2.0 excludes ocean-race acceptance
- Draft of 1.90–2.00 meters limits marina and anchorage access
- Theoretical hull speed (7.8 kn) below documented diesel speed (8.0 kn) signals limited under-power reserve









