Design and Construction
Both the hull and deck are solid fiberglass, while the keel is iron. That contrasts with the lead ballast cited in some background summaries, so the 1,764-pound ballast figure is best treated as an estimate rather than as documentation of the keel material.
The hull measures 25 feet 9 inches, with a beam of just over nine feet and a length-to-beam ratio of 2.80. The yachtdatabase review found her roomier than 76 percent of comparable designs—a generous proportion for a boat of this length.
Her ballast ratio is 40 percent, higher than that of half of similar sailboats. A displacement-length ratio of 213 places her among what the review calls “moderate racers,” while 58 percent of peer designs are rated as heavier.
Rig and Handling
The Gib'Sea 26 carries a masthead sloop rig with about 390 square feet of sail area. For a new owner, the review provides useful estimates for the running rigging: jib and genoa sheets are about 25.8 feet long and 3/8-inch in diameter; the mainsheet is about 64.4 feet; and the spinnaker sheets are about 56.7 feet. All are listed as 10 mm in the review’s estimated sheet lengths for the Gib'Sea 26.
Wetted surface is about 215 square feet, and theoretical hull speed is 6.1 knots. Her capsize screening value of 2.24 means she wouldn’t be accepted for ocean racing. The source draws a clear distinction here between her coastal role and bluewater competition.
The Motion Comfort Ratio is 15.7, making her more comfortable than 31 percent of similar designs. That doesn’t suggest a soft-riding hull, but it’s within the expected range for a boat of this size.
Accommodations
The documented evidence for interior volume is limited to the beamy 2.80 length-to-beam ratio and the review’s finding that the Gib'Sea 26 is roomier than 76 percent of comparable designs.
Known Issues
The iron keel presents different corrosion risks from a lead keel and warrants attention during a survey.
Verdict
The Gib'Sea 26 is a late-1970s coastal cruiser with a roomy beam for her length, modest draft, and a moderate-racer displacement profile. Her capsize screening value keeps her out of the offshore-racing category, but her proportions and 189-boat production run make her a representative French pocket cruiser of the period.
Pros
- Beamier and roomier than most comparable boats: a 2.80 length-to-beam ratio and more room than 76 percent of similar designs
- Solid fiberglass hull and deck
- Shallow enough draft for marina access
- Moderate displacement and a 40 percent ballast ratio suit settled coastal sailing
Cons
- A capsize screening value of 2.24 excludes her from ocean races
- The iron keel requires corrosion vigilance
- A Motion Comfort Ratio of 15.7 is better than that of only 31 percent of similar designs







