Design and Construction
The Serena 100 measures 32.81 feet overall, with a 26.9-foot waterline and an 11.09-foot beam. Its length-to-beam ratio of 2.96 gives it the broad, volume-minded proportions of a mid-30s cruiser rather than those of a lithe racer.
The hull and deck are flat and made of solid fiberglass, while the ballast is iron. This is a straightforward, repairable construction approach typical of the marque's 1980s output.
The fin keel gives a loaded draft of roughly 4.0 to 4.3 feet, depending on load. That allows the boat to tuck into shallow marinas that deeper fin-keelers can't reach. Displacement is 9,480 pounds, and wetted surface is about 301 square feet. A displacement-to-length ratio of 217 puts the Serena 100 among the period's “moderate racers.”
Rig, Performance, and Handling
The masthead rig carries 360 square feet of sail, for a sail-area-to-displacement ratio of 12.86. That is enough sail to keep the boat moving in a breeze without overcanvassing it for short-handed cruising.
A motion comfort ratio of 20.6 and a capsize screening value of 2.10 describe a boat unsuited to ocean racing but stable enough for coastal and moderate offshore passage-making. The theoretical hull speed is about 7.0 knots.
An immersion rate near 1,039 pounds per inch means the boat sits heavily and changes trim slowly as weight comes aboard. That is the predictable, forgiving behavior of a cruiser rather than the quick response of a twitchy racer.
The sheet specifications are standard for the period: 12 mm (1/2 inch) control lines throughout, with a 25-meter mainsheet and 10-meter jib and genoa sheets, plus 22-meter spinnaker sheets.
Tankage and Cruising Range
The Serena 100 carries 40 gallons of water and 27 gallons of diesel within its 9,480-pound hull. That is modest cruising provision for a boat of this size and is consistent with its coastal and moderate-passage screening numbers. The tankage is lean for extended autonomous cruising.
The Verdict
The Gib'Sea Serena 100 is an early-1980s, Berret-designed, Gibert-built cruiser with solid-fiberglass construction. It trades a racer's edge for shallow marina access and stable motion. Its numbers point to a moderate-displacement coastal and bay cruiser with enough sail to feel lively and enough beam to provide room, all in a shallow-draft hull with straightforward iron ballast.
Pros
- Shallow fin-keel draft of 4.0–4.3 ft improves marina and anchorage access
- Solid-fiberglass hull and deck with iron ballast make for straightforward cruiser construction
- Sail-area-to-displacement ratio of 12.86, with 360 sq ft of sail on a masthead rig
- Motion comfort ratio of 20.6 and a stable, predictable moderate-displacement hull
Cons
- Capsize screening value of 2.10 excludes the boat from ocean-racing acceptance
- No interior, tankage, or rig-detail specifics beyond the envelope figures
- Fuel capacity of 27 gal and water capacity of 40 gal are lean for extended autonomous cruising
