With moderate displacement, a fin keel, and a skeg-hung rudder, the Gib'Sea 116 sits squarely in the cruiser-racer middle ground of its day—not a heavy-displacement charter barge or an ultra-light racer.
Design and Construction
The Gib'Sea 116 measures 12.29 meters overall, with a 9.65-meter waterline and a 12.5-foot beam. Displacement is roughly 16,500 pounds, including 6,200 pounds of lead ballast for a ballast ratio of 37.6 percent.
Gibert Marine built the boat with a solid fiberglass hull, fin keel, and skeg rudder, reflecting the yard's typical 1980s construction below the waterline. The solid hull also means there is no cored laminate below the waterline to trap moisture.
A displacement-to-length ratio of about 232 identifies the Gib'Sea 116 as a moderate cruiser rather than a spartan racer. Its comfort ratio of 25.8 is consistent with a boat intended for extended coastal and offshore passage work. The capsize screening value is 1.97, where you would expect it to be for a 40-foot family cruiser: outside the extreme-survival envelope, but well within normal recreational bounds.
A shoal-keel version was also offered. It draws just over five feet and carries slightly more displacement and ballast than the standard fin-keel model. That makes it a useful alternative for shallow-water cruising grounds and may appeal particularly to owners who value gunkholing over absolute windward performance.
Rig, Performance, and Handling
The Gib'Sea 116 carries a masthead sloop rig with about 592 square feet of sail area. Against its displacement, that produces a sail-area-to-displacement ratio of 14.6—enough to keep the boat moving in modest breeze without requiring a large crew.
Calculated hull speed is 7.54 knots, while an S# value of 2.1 places performance firmly in the moderate-cruiser category rather than at the lively sportboat end of the spectrum.
The skeg-hung rudder sits behind the fin keel, providing good steering authority and protection against grounding damage. It was a sensible arrangement for a model that often went directly into the charter trade.
Accommodations and Tankage
The standard Gib'Sea 116 had a cruising interior, while a MASTER, or owner's, version gave private buyers a different berth and stowage arrangement from the charter-spec boats. Both layouts benefited from the boat's roomy interior.
Tankage is substantial for a 40-footer of this era: 100 gallons of water and 41 gallons of fuel. Those capacities support extended cruising without constant reprovisioning.
Engines, Refits, and Ownership
The boat was fitted with a straightforward, well-supported 50-horsepower Volvo Penta diesel.
Many Gib'Sea 116s were sold directly into the charter trade. As a result, a significant proportion of surviving boats may show the wear patterns and simplified systems associated with commercial service rather than careful private ownership. Prospective owners should expect that any given example may have seen hard use early in its life before passing into private hands.
The Verdict
The Gib'Sea 116 is a thoughtfully proportioned, moderate-displacement cruiser from the final independent decade of Gibert Marine. Its Joubert-Nivelt hull is practical, the rig numbers are sensible, and the roomy interior is backed by serious tankage.
The boat's heavy presence in charter fleets is the main caveat. Many examples will need careful inspection for early-life abuse, but a well-kept boat offers a stable, capable 40-foot cruising platform.
Pros
- Moderate 37.6 percent ballast ratio, with a lead keel for predictable stability
- Generous 100-gallon water and 41-gallon fuel capacities for a 40-footer
- Skeg-hung rudder protected behind the fin keel
- Owner's-version layout offered alongside the standard charter layout
Cons
- Many examples began in charter service and may show corresponding wear
- A single 1984 model year limits parts commonality across the production run
