Design Brief & Intent
The core mission of the Casamance 45 was to provide a safe, fast, and comfortable platform for transoceanic cruising. Joubert-Nivelt designed the hulls with relatively narrow entries to slice through chop, transitioning to flat runs aft to maximize surfing potential on downwind passages. Crucially, the builder moved away from the complex and high-maintenance pivoting centerboards of previous designs in favor of low-aspect fixed twin keels. This compromise provided worry-free protection for the hulls and rudders while still maintaining a highly accessible draft of just over four feet.
Step down into the hulls, and the interior environment speaks to the boat’s serious cruising pedigree. The interior, styled with input from renowned designers of the era, features warm cherry-stained mahogany and Burma teak joinery that is noticeably thicker and more robust than the thin laminates found on modern production catamarans. The saloon is wrapped in panoramic windows that flood the living space with natural light and offer excellent visibility. The layout is optimized for offshore living, featuring deep-fiddled countertops, a secure and sea-safe galley-down configuration in some units, and robust handholds throughout the cabin.
Variations & Configurations
The Casamance 45 was largely built using the same core hull mold as its smaller sibling, the Casamance 43, but it incorporated crucial factory-extended sugar scoop transoms. This extension elongated the overall length to 45.83 feet, which not only improved waterflow and hull speed but also made boarding from a dinghy or recovering from a swim vastly safer and more convenient.
Internally, Fountaine Pajot offered the vessel in two primary configurations. The charter-oriented layout featured a symmetrical four-cabin, two-head arrangement, with two double berths in each hull. The highly coveted Owner’s Version, which remains scarce on the brokerage market, dedicated one entire hull to a master suite featuring a large head, a dedicated vanity or writing desk, and extensive hanging locker space. In addition to these standard offerings, the modular nature of the early Fountaine Pajot manufacturing process allowed for several custom variations, with some owners opting to convert bow sections into workshop spaces, additional single pilot berths, or massive pantry storage.
Sailing Performance & Handling
The sailing characteristics of the Casamance 45 are defined by its exceptional power-to-weight ratio and a slippery hull design. Weighing in at a relatively light displacement of 18,000 pounds, the boat behaves like a thoroughbred compared to heavier, modern cruisers. This performance is quantified by a powerful sail area-to-displacement ratio of 24.46, indicating that the boat can carry a generous sail plan and easily maintain momentum in light, summer air where other cruising catamarans are forced to motor.
Off the wind, the low displacement-to-length ratio of 87.71 allows the Casamance 45 to easily break free of its theoretical hull speed, routinely averaging double-digit speeds on a reach under its fractional sloop rig. The twin low-aspect keels provide acceptable upwind pointing capabilities for a cruising catamaran of this vintage, though she will not tack as tightly as a daggerboard-equipped boat. At the helm, the 3.51 capsize screening ratio highlights the boat's immense initial stability, courtesy of its 23-foot beam. Conversely, the comfort ratio of 9.44 represents the typical quick, lively motion of a light multihull. While it lacks the slow, heavy rolling motion of a traditional monohull, the relatively high bridgedeck clearance minimizes the violent bridgedeck slamming and pounding in head seas that plagues lower-clearance catamarans.
Known Issues & Triage
Prospective buyers of a Casamance 45 must evaluate the vessel with a checklist specific to early-generation fiberglass multihulls. Because these hulls were manufactured before the widespread adoption of vinylester resins, osmotic blistering is a well-documented issue. Many hulls have already undergone extensive bottom-peeling, drying, and epoxy barrier coating, but a thorough moisture survey of the underwater hulls remains an absolute necessity.
While the hulls below the waterline are constructed of solid, robust fiberglass laminate, the decks and coachroof feature a balsa core. Any aftermarket hardware installed by previous owners—such as solar panels, davits, or cleats—that was not properly drilled, overbored, and epoxy-sealed can allow water to penetrate the balsa core, leading to localized rot. A moisture-meter inspection of the entire deck surface is critical.
Additionally, the panoramic Lexan windows in the saloon are prone to severe UV crazing, degradation, and leaks over time. Replacing or re-bedding these massive panes requires meticulous preparation, utilizing specialty primers and highly flexible polyurethane structural adhesives to accommodate the natural flexing of a catamaran’s deckhouse.
Finally, the boat's auxiliary power originally consisted of dual Volvo Penta diesel engines, yielding a combined 90 horsepower. Many of these units utilized Volvo Penta saildrives. If the vessel is equipped with newer or upgraded Volvo 130S saildrives, owners should be aware of a critical manufacturer bulletin regarding clutch-plate slippage. Volvo Penta originally specified automatic transmission fluid (ATF) for these units but later recommended a permanent switch to 15W-40 engine oil to prevent premature wear on the multi-plate clutch system.
Modernization & Upgrades
Due to the boat's excellent underlying structure, the Casamance 45 is a highly popular candidate for extensive offshore refits. The wide, low-profile cabin top offers an ideal, unshaded canvas for modern high-efficiency solar arrays. Veteran owners frequently install rigid solar frames over the aft davits or flush-mount panels on the coachroof, easily generating upwards of 1,000 watts of power. This solar capacity makes the boat a perfect candidate for converting old lead-acid battery banks to high-capacity Lithium Iron Phosphate (LiFePO4) systems, allowing cruisers to run watermakers, induction cooktops, and even air conditioning units without relying on a noisy diesel generator.
Repowering is another common modernization step. The original Volvo engines are often replaced with modern, fuel-efficient twin engines, such as the Volvo Penta D2-40 or Yanmar 3JH series, paired with updated saildrives and folding or feathering propellers to reduce drag under sail. Replacing the original heavy trampolines with lightweight, open-weave materials from specialized manufacturers is another highly recommended upgrade, as it significantly reduces weight on the bow and allows waves to pass through easily in heavy weather, preventing bow-stuffing.
The Verdict
The Fountaine Pajot Casamance 45 remains a highly respected and sought-after classic on the brokerage market. It represents a rare, ideal middle ground between the ultra-light, minimalist performance catamarans and the heavy, sluggish cruising "condos" of the modern era. While buyers must be prepared to address age-related issues such as gelcoat osmosis and potential deck core moisture, the boat’s superb bridgedeck clearance, robust construction, and stellar sailing dynamics make it an incredibly capable and comfortable blue-water circumnavigator.
Pros:
- Outstanding sailing performance and light-air agility due to a high sail area-to-displacement ratio and light overall weight
- Superior structural safety, certified as insubmersible with built-in buoyancy compartments
- Excellent bridgedeck clearance, which significantly reduces wave slapping and structural pounding in a seaway
- Warm, classic interior joinery with high-quality woodwork compared to modern production boats
- Easy boarding and improved water flow provided by the factory-extended sugar scoop transoms
Cons:
- High susceptibility to osmotic blistering on hulls built before the era of vinylester resin
- High risk of localized balsa core rot on decks and coachroof due to poorly bedded aftermarket hardware
- Large, panoramic saloon windows are prone to leaking and require challenging re-bedding procedures
- Twin low-aspect fixed keels compromise ultimate windward pointing ability compared to daggerboard-equipped catamarans
- Age-related refit costs can be significant, particularly when upgrading older wiring, plumbing, and original engines
