Sundeer 64 Information, Review, Specs

Sailing Performance & Handling

The performance of the Sundeer 64 is predicated on its high Displacement to Length (D/L) ratio efficiency and a narrow hull form that minimizes drag. Unlike modern "fat" stern cruisers that rely on initial stability from beam, the 64 uses its 64-foot length to generate speed. With a Load Waterline Length (LWL) nearly equal to its Length Over All (LOA), the boat benefits from a higher theoretical hull speed than almost any other cruising monohull in its class. According to design insights from SetSail, the vessel was optimized to be easily driven, allowing for a smaller, more manageable sail plan that does not sacrifice velocity.

In terms of handling, the boat is known for its exceptional tracking. The deep, high-aspect-ratio spade rudder provides a grip that prevents broaching even when pressed in heavy following seas. The "Dashew" trademark of placing the cockpit well forward—protected by a large hard dodger—ensures that the motion is minimized for the crew, as they are seated closer to the center of pitch. Owners frequently report that the boat feels "on rails," a sensation aided by the lack of turbulence created by its slender entry.

Interior Comfort & Variations

The interior of the Sundeer 64 is a masterclass in offshore ergonomics, purposefully avoiding the "condo-maran" layout in favor of sea-kindliness. The primary cabin is typically located forward of the mast, featuring a large island berth and significant storage, while the main salon is situated amidships where motion is most stable. A signature feature of the Sundeer series is the "great room" feel, facilitated by large windows that provide panoramic views and alleviate the subterranean feeling of traditional yachts.

While the Sundeer 64 is the flagship of this specific production line, it is closely related to its sibling, the Sundeer 60. The 64 is essentially a "stretched" version of the 60-foot hull, utilizing the extra four feet to provide a larger aft lazarette and a more pronounced "sugar scoop" transom for easier water access and increased buoyancy aft. This extension also serves to further increase the waterline, marginally improving top-end speed. Unlike the Sundeer 56, which was designed for smaller budgets and slightly tighter handling, the 64 offers a significant upgrade in engine room accessibility—a hallmark of TPI’s construction—allowing for "walk-in" maintenance of the primary systems.

Popular Mentions & Media

The Sundeer 64 and its designer, Steve Dashew, have a massive footprint in nautical literature. Dashew’s seminal works, including The Mariner’s Handbook and Surviving the Storm, frequently use the Sundeer and Deerfoot designs as the gold standard for heavy-weather survival and efficient passage-making. The vessel Eagle is perhaps the most well-documented Sundeer 64, having served as a testbed for many of the concepts later found in the FPB (Functional Power Boat) series. The boat's development and long-distance voyages are extensively chronicled on the SetSail website, which remains the primary technical archive for the model.

Known Issues & Buyer’s Checklist

Prospective buyers should approach a Sundeer 64 with a focus on its specialized systems and the era of its construction.

• Fuel and Water Tanks: Many Sundeers were built with integral or aluminum tanks. Given the age of these vessels, a pressure test and borescope inspection for internal corrosion or delamination is essential.
• Rigging Loads: Because the 64-foot hull is narrow, the rig is tall to capture light air. The loads on the chainplates and the standing rigging are substantial. An ultrasonic test of the chainplates is recommended, especially if the boat has completed a circumnavigation.
• Deck Core: While TPI was a pioneer in SCRIMP (Resin Infusion), earlier models or non-infused components may still utilize balsa coring. Check for moisture ingress around stanchion bases and the large deck-mounted vents.
• Hydraulic Systems: Many 64s were equipped with hydraulic furling and winches to allow for shorthanded sailing. These systems require meticulous maintenance; check for leaks in the manifold and the age of the high-pressure hoses.

Community & Resources

The Sundeer community is highly specialized and technical. Information is primarily disseminated through the Dashew Offshore archives, which provide original drawings and design notes. Owners often congregate in private technical forums or through the Seven Seas Cruising Association (SSCA), where the Sundeer’s reputation as a "serious" cruiser makes it a frequent topic of technical discussion regarding offshore preparation.

The Verdict

The Sundeer 64 is not a boat for the casual weekend sailor or those who prioritize maximum interior volume for dockside entertaining. It is a purpose-built tool for transoceanic transit.

Pros:

• Unmatched Speed: Regularly maintains 9-10 knot averages under sail.
• Shorthanded Capability: Truly sailable by a couple thanks to thoughtful winch placement and rig design.
• Robust Construction: Built by TPI Composites using advanced laminates that have stood the test of time.
• Safety: Exceptional tracking and a cockpit designed for protection in extreme conditions.

Cons:

• Slip Availability: Its 64-foot length can make finding affordable berthing difficult in crowded regions.
• Narrow Interior: Less "living space" than a 50-foot modern production cruiser with a wider beam.
• Complexity: Large systems (hydraulics, massive engine rooms) require a high level of mechanical literacy from the owner.