The two principal records disagree on production: one cites 224 examples, while the other gives 438. Both, however, describe a compact monohull intended for family sailing rather than competition. One period review states explicitly that the design isn’t suited to racing.
Design and Construction
The Gib'Sea 77 is a polyester cruising monohull. One record lists an overall length of 7.68 m and a width of 2.80 m. Yachting Monthly gives an LOA of 26ft 2in (8m), an LWL of 22ft 8in (6.9m), a beam of 8ft 2in (2.5m), and a displacement of 2,688 lb (1,222 kg).
As with other Gib'Sea models from the period, the deck and hull fittings were lightweight. Yachting Monthly identified this as a characteristic of the marque at the time, rather than a weakness peculiar to the Gib'Sea 77.
Rig, Handling, and Machinery
The Gib'Sea 77 has a masthead sloop rig. Both sources describe her as light and easy to handle, qualities that suit a couple or family sailing on sheltered water. According to the review, auxiliary power comes from a modest 8 horsepower diesel.
Sheets and halyards lead back to the cockpit, allowing the crew to trim from beneath the companionway and reducing the need to go forward under way—a useful feature for short-handed family crews.
The centerboard-keel version draws between 0.87 m and 1.77 m. That range allows access to shallow harbors while providing greater draught when sailing offshore in a breeze. Yachting Monthly considered the boat a good family coastal cruiser, although the same record warns that she wasn’t built for the racecourse.
Accommodation
Accounts of the interior differ. One describes the Gib'Sea 77 as a sporty four-berth cruiser. Another says she can sleep up to six in two cabins and a convertible saloon, with a berth tucked aft of the galley and an enclosed heads aft. Headroom reaches 1.75 meters.
The sources also conflict over the sanitary arrangements. The French review states plainly that there is no toilet or bathroom, while Yachting Monthly records an enclosed heads aft. The difference may reflect a particular version or refit, but a buyer should verify the arrangement in person.
Neither source mentions a chart table, and Yachting Monthly notes its absence directly.
Tankage and Intended Use
The boat carries an 80-liter fresh water tank and 7 gallons of diesel. Those capacities point toward straightforward weekend use rather than long-distance passage-making.
Known Issues and Ownership
Owners of the 1982 ballasted-dinghy version report a recurring problem: the daggerboard regularly gets stuck. This complaint applies specifically to the ballasted-dinghy configuration rather than the standard cruising-keel models. Even so, it is the only documented operational grievance in the record and is worth checking on any centerboard example.
Production ended in 1984, leaving only a few hundred hulls afloat. Today, the Gib'Sea 77 occupies a modest place on the used coastal-cruiser market. Because the original fittings were lightweight, later owners have often needed to tighten or replace deck hardware.
Verdict
The Gib'Sea 77 is a small, light, approachable coastal cruiser from the late-1970s French production scene. It is best understood as a family boat for day sailing and weekends rather than as a racer or offshore voyager.
Its centerboard versatility and cockpit-led controls make it well suited to shallow estuaries and short-handed sailing. Against that, the conflicting accounts of the heads arrangement and the lightweight original fittings call for a careful survey.
Pros
- Light, easy handling
- Sheets and halyards led back to the cockpit
- Centerboard keel provides shallow-draught access and greater draught when lowered
- Sleeps four to six in a compact, simple layout
- Enclosed heads or no heads, depending on the version described
Cons
- Not suited to racing, according to a period review
- Lightweight original fittings, typical of Gib'Sea models from the period
- Daggerboard on the ballasted-dinghy version is prone to sticking
- Conflicting records on toilet and bathroom provision






