Design and Construction
Robertson & Caine's mandate from The Moorings was specific: excellent liveability, comfort at anchor, low maintenance, and ease of handling. The result is a platform with a 22.74-foot beam on a 42.49-foot hull — proportions that favor interior volume and stability over light-air speed. The fiberglass construction is solid throughout, and removable ceiling panels are fitted throughout for ease of inspection and maintenance, a detail that speaks to the builder's awareness that charter operators and liveaboard owners alike need access to what's behind the headliner. The hardtop is structural rather than a fabric afterthought, giving the cockpit genuine weather protection while providing a mounting surface for solar panels and the mainsheet traveler, reducing clutter in the cockpit. The transom carries a full walk-around duckboard and strong davits for the dinghy — a practical design that is convenient during sailing and provides excellent access to the tender and ocean at anchor.
Rig and Sailing Performance
The Leopard 43 carries a fractional sloop rig with a mast height of 63 feet above the waterline and a reported sail area of roughly 1,238 to 1,291 square feet depending on headsail size. The SA/displacement ratio of 27.90 sits well above the threshold considered high-performing for a cruising multihull, and the Kelsall Sailing Performance figure of 0.78 suggests a boat capable of maintaining meaningful boat speed in moderate breeze. Multihulls World tested the Moorings 4300 version in conditions running to 35 knots and found well-balanced hulls capable of respectable averages in excellent comfort. Most lines are led aft to the cockpit, and an electric winch provides the muscle power for sail handling, which makes short-handed operation practical even in boisterous conditions. The helm sits to starboard with good visibility, augmented by a windscreen Bimini that bridges the cabin top and hardtop for rough weather.
Accommodations and Interior
The interior fitout is where the Leopard 43 genuinely earns its cruising pedigree. Entry from the cockpit passes over a seaworthy raised bulkhead, a small but meaningful detail on a boat intended for offshore passages. The saloon lounge seats six, and louvered forward windows provide very good protection from the sun while opening hatches ensure ventilation — critical in the tropical waters the boat was designed for. The U-shaped galley on the port side forward features two sinks, a recessed dish drying rack, separate refrigerator and freezer, and a two-burner stove with oven. Multihulls World's testers found the U-shaped galley has good stowage space and a large work top. The navigation station sits to starboard with a comprehensive electrical panel whose wiring is accessible from behind.
In the owner's configuration, the starboard hull is devoted entirely to the owner's cabin, closable from the salon by a private door. The charter layout provides four double cabins each with a private head. All sleeping quarters come equipped with shelving, reading lights, ventilation fans, hanging lockers, and provisions for air conditioning controllable separately by cabin.
Known Issues
The Leopard 43's most consistently cited weakness is the bridge deck clearance. Both the CatamaranReviews editorial and the Multihulls World test team flag the same fault: the bridge deck has a low clearance with the water and is known to slam in rough seas. This is an inherent characteristic of the hull geometry rather than a build defect, and buyers should weigh it honestly against the model's strengths. In short chop or steep following seas, bridge deck slamming will be a regular presence, and it is audible and fatiguing over extended offshore passages. The Multihulls World summary puts it plainly: the only fault is that the Leopard slams in rough seas. This is not unusual for production cruising cats of the era, but it is more pronounced here than on hulls with greater clearance.
Refit Considerations
The original Yanmar 3JH4 diesels — twin 39 hp units — are long-running workhorses with an extensive parts and service network, but boats with high charter hours may carry considerable engine wear. Buyers should budget accordingly and inspect impellers, heat exchangers, and injectors carefully. The electrical panel is designed for accessibility, and wiring can be easily accessed behind the comprehensive electrical control panel, which simplifies upgrades or troubleshooting. The hardtop is a natural platform for expanded solar capacity, and many examples have seen panel upgrades over the years. The cockpit clears that roll down for weather protection are a practical feature but prone to UV degradation in tropical climates, and replacement is a common first-year refit item. Cabin air conditioning systems vary by hull and, where fitted, are often among the first systems owners revisit on older boats.
The Verdict
The Leopard 43 is a thoroughbred cruising catamaran that delivers on the Robertson & Caine brief: a boat that sails competently short-handed, lives comfortably in warm anchorages, and holds together through real bluewater passages. The design's priorities are unambiguous — volume, light, and ventilation over racing performance — and buyers who align with those priorities find a boat that rewards them consistently. The bridge deck slamming is real and should be experienced firsthand before purchase; it is the one non-negotiable trade-off in the design.
Pros
- Short-handed capable with lines led to cockpit and electric primary winch
- Solid Robertson & Caine fiberglass construction with accessible panels throughout
- Generous galley, dedicated navigation station, and high-quality interior fitout
- Versatile in two layouts: owner's full-hull master cabin or four-cabin charter configuration
- 63-foot mast and high SA/displacement ratio provide real drive in moderate conditions
- Large duckboard and sugar-scoop transoms make life on the hook practical and safe
Cons
- Low bridge deck clearance causes pronounced slamming in rough or choppy seas
- Charter-spec hulls (the majority built) may carry accumulated wear from heavy use cycles
- Cockpit clears and canvas degrade quickly in tropical UV environments
- The 4.25-foot draft, while manageable, restricts access to the shallowest Caribbean and Pacific anchorages



