Sunward 48 Information, Review, Specs

Sailing Performance & Handling

With a displacement-to-length (D/L) ratio often exceeding 400 and a displacement of roughly 50,000 pounds, the Sunward 48 is firmly categorized as an ultra-heavy cruiser. This mass, combined with a long fin keel and a skeg-hung rudder, results in exceptional directional stability and a Motion Comfort Ratio (MCR) of approximately 60, placing it among the most stable offshore yachts in its size class. In heavy air, the Sunward 48 feels invincible, tracking through confused seas with minimal helm fatigue.

The masthead ketch rig provides a versatile sail plan that is easily managed by a couple. The split rig allows for numerous sail combinations, such as the "jib and jigger" configuration, which keeps the boat balanced and comfortable in high winds while reducing heel. However, this heavy-displacement logic dictates a trade-off in light air performance; the boat requires a significant breeze (12 knots or more) to truly find its stride. Under power, the vessel typically utilizes a high-horsepower inboard (often a Yanmar or Detroit Diesel) to overcome its substantial inertia, particularly when maneuvering in tight marinas where the long keel makes backing up a predictable but slow affair.

Interior Comfort & Variations

The interior of the Sunward 48 is a testament to the semi-custom craftsmanship of the North Carolina yard, with many units finished by Rose Yacht Interiors. The center-cockpit layout facilitates a massive, full-beam aft owner’s stateroom with generous headroom—reported to be up to 6'5"—and a private en-suite head. The main salon is typically cavernous, featuring a large U-shaped galley to starboard and a dedicated navigation station to port.

Interior configurations varied significantly based on the original owner’s requirements. While many hulls were delivered in a standard two-cabin, two-head layout to maximize living space for a cruising couple, others were highly customized. Walter Cronkite’s personal Sunward 48, for example, was modified to accommodate four separate cabins to house both family and professional crew. The use of high-quality mahogany and teak joinery, often accented with olive burl wood or leaded glass cabinet doors, creates a warm, "old-world" nautical ambiance that is increasingly rare in modern production yachts.

Popular Mentions & Media

The Sunward 48’s primary claim to fame is its association with Walter Cronkite, who owned and frequently cruised a 1986 model named Wyntje. Cronkite was an ambassador for the design, often citing its heavy-weather capabilities and spacious engine room as key factors in his transition from a smaller Crealock-designed yawl. Beyond the Cronkite connection, the model has gained a reputation in the circumnavigation community for its durability, as seen in accounts from vessels like Lola, which has been featured in long-distance voyage documentation for its sea-kindliness during extended blue-water passages.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Sunward 48 with a detailed inspection plan focused on the longevity of its 1980s systems:

• Fuel and Water Tanks: While many Sunward 48s were built with fiberglass (GRP) tanks integrated into the hull—which are generally superior to the iron tanks of that era—buyers should verify the material and check for any signs of delamination or fuel contamination.
• Teak Deck Integrity: Many units were delivered with traditional teak decks screwed into a cored fiberglass deck. Over decades, these fasteners can allow water to migrate into the core. A thorough moisture meter test and percussion "sounding" of the decks are mandatory.
• Chainplates and Standing Rigging: Given the boat’s age and its intended use for offshore work, the original stainless steel chainplates and swaged rig fittings may be reaching the end of their fatigue life.
• Wiring and Plumbing: Because some hulls were sold "bare" and finished by different owners or secondary shops, the quality of the electrical distribution and plumbing runs can vary significantly between individual boats.

Community & Resources

Due to the limited production run, there is no formal international owners' association; however, the Sunward 48 community is active within broader technical circles. Owners and refit specialists frequently exchange data through the Sparkman & Stephens Association, which serves as a repository for technical drawings and design history for all S&S hulls. Technical specifications and rigging dimensions are also maintained by various marine resource databases for the purpose of sail replacement and rig tuning.

The Verdict

The Sunward 48 is a specialized tool for the serious long-distance cruiser who values safety and comfort above the racing clock.

Pros:

• Exceptional motion comfort in heavy seas.
• High-quality, semi-custom interior woodwork.
• Versatile ketch rig for easy shorthanded sail handling.
• Vast interior volume and storage for long-range provisioning.

Cons:

• Sluggish performance in light air (under 10 knots).
• Difficult to maneuver in reverse due to the long keel.
• High maintenance requirements associated with older teak decks and complex systems.