ShearWater 39 Information, Review, Specs

ShearWater 39 Drawing
Make
ShearWater
Model
39
Builder
Nebe Boatworks
Designer
Dudley Dix
Number Built
20
Production Year(s)
1990 - ??

The Shearwater 39 is a quintessential example of the "South African school" of yacht design, representing a bridge between the traditional heavy-displacement cruisers of the mid-20th century and the more performance-oriented offshore vessels of the modern era. Commissioned by Gerfried Nebe and designed by the prolific Dudley Dix Yacht Design, the boat was born from the wooden hull of "Gabriel," which served as the plug for the subsequent glass-reinforced plastic (GRP) production run. This origin story is critical to understanding the vessel's character; the Shearwater 39 retains the robust, overbuilt feel of a custom timber yacht while benefiting from the consistency and maintenance ease of a production fiberglass hull. Built by Nebe Boatworks in Hout Bay, approximately 27 units were completed, many of which were specifically outfitted for high-latitude or transoceanic voyaging.

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Sailing Performance & Handling

The Shearwater 39 is defined by its "medium displacement" hull form, balancing a 18,000 lb (8,200 kg) displacement with a moderate fin keel and a substantial skeg-hung rudder. This configuration yields a vessel that is significantly more maneuverable than the full-keeled cruisers of its day, yet remains exceptionally stable in heavy following seas. According to technical notes from Dudley Dix Yacht Design, the hull was designed with a relatively high ballast ratio (approximately 42%), which provides the "stiffness" necessary to carry a full press of sail when modern lighter-displacement boats might be forced to reef.

On the water, the Shearwater 39 is known for its predictable tracking. The skeg-hung rudder offers a high degree of protection against debris—a critical feature for the South African coastline—while providing enough tactile feedback to the helm to make light-air sailing rewarding. With a sail area-to-displacement ratio in the mid-16s, it is not a "racer-cruiser," but it is an efficient passage-maker. Owners often report that the boat finds its groove at about 15 knots of apparent wind, where the moderate beam (12' 6") provides a stable platform without the pounding associated with wider, flatter-bottomed modern designs.

Interior Comfort & Variations

Because Nebe Boatworks operated as a semi-custom builder, the interior of the Shearwater 39 often reflects the specific requirements of its original owners, though most follow a standard offshore-friendly layout. The common configuration features a large, U-shaped galley to port of the companionway—designed to keep the cook secure in a seaway—and a forward-facing navigation station to starboard that is appropriately sized for full-scale paper charts. The use of high-quality African hardwoods, such as Iroko or Teak, gives the interior a warm, traditional aesthetic that has aged better than many of its contemporary European counterparts.

While the 39-foot hull is the most common, Dudley Dix also developed the Shearwater 45 as a larger sibling. The 45-foot variant utilizes a similar aesthetic and hull philosophy but offers significantly more volume for long-term liveaboards, often incorporating a dedicated workshop or a third cabin. In the 39, the master cabin is typically located forward with a V-berth or offset double, while the aft section often houses a single or double quarter cabin. Headroom is generous throughout, typically exceeding 6' 3" in the main saloon, a testament to Nebe’s focus on the export market and taller sailors.

The Shearwater 39’s reputation as a world-class cruiser was cemented by the voyages of individual hulls. "Gabriel," the wooden prototype, proved the design's offshore mettle early on. Other notable hulls like "Centime" and "Talitha" have logged tens of thousands of miles, including multi-year circumnavigations. The design is frequently cited in South African maritime circles as the benchmark for a "Hout Bay" cruiser—vessels built to withstand the rigorous conditions of the Cape of Good Hope.

Known Issues & Buyer’s Checklist

When inspecting a Shearwater 39, the primary focus should be on the hull-to-deck joint and the condition of the GRP, especially in earlier models.

  • Chainplate Inspection: As with many yachts of this era, the stainless steel chainplates are through-bolted and can develop crevice corrosion if the sealant has failed. Given the boat's bluewater intent, these should be pulled and inspected if they are original.
  • Skeg-to-Hull Joint: The skeg is a vital safety feature, but the joint where it meets the hull can show signs of stress or weeping if the boat has suffered a grounding. This area requires careful ultrasonic testing or visual inspection for structural crazing.
  • Osmotic Blistering: While Nebe Boatworks used high-quality resins, some hulls from the late 1980s have been reported to develop minor osmotic blistering. Potential buyers should look for evidence of a professional epoxy barrier coat treatment.
  • Wood Core in Decks: Some variants utilized a balsa or plywood core in the deck for stiffness. Any soft spots near stanchion bases or windlasses should be investigated for core rot.

Community & Resources

The primary technical resource for the Shearwater 39 remains the designer himself. Dudley Dix maintains an active presence and provides plans and technical support through his firm. While there is no formal "Nebe Owners Association," the Shearwater 39 community is active within broader South African cruising forums and the Dudley Dix design groups, where owners share refit data and performance tweaks.

The Verdict

The Shearwater 39 is a "sailor’s boat" built for those who prioritize structural integrity and sea-kindliness over marina-friendly interior volume. It remains one of the most respected designs to emerge from South Africa.

Pros:

  • Exceptional Offshore Pedigree: Proven track record of circumnavigations and heavy-weather performance.
  • Robust Construction: The skeg-hung rudder and moderate fin keel offer a high safety margin.
  • Timeless Aesthetic: High-quality interior joinery and classic lines that do not date.

Cons:

  • Limited Availability: With only ~27 built, finding one on the secondary market can be difficult.
  • Heavy for Light Air: The medium displacement requires a significant sail plan to move effectively in sub-8 knot winds.
  • Age-Related Maintenance: Most units will now require updates to standing rigging and electronics.

Measurements

Construction & Hull

Construction Material
Fiberglass/Wood Composite
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x Transom-Hung
Ballast
8377 lbs
Displacement
21605 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
39.37 ft
Waterline Length (LWL)
-
Beam
12.8 ft
Draft
5.91 ft
Max Headroom
6.56 ft
Air Draft
56.43 ft
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Cutter
P (Main Luff)
-
E (Main Foot)
-
I (Foretriangle Height)
-
J (Foretriangle Base)
-
Forestay Length (est)
-
Sail Area
841 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
17.34
Ballast / Displacement Ratio
38.77
Displacement / Length Ratio (D/L) Ratio
Comfort Ratio
Capsize Screening Formula
1.84
Hull Speed
— kn