S&S 24 Information, Review, Specs

Make
S&S
Model
24
Builder
Sea Nymph
Designer
Sparkman & Stephens
Number Built
20
Production Year(s)
1968 - 1973

The S&S 24, produced by the storied New Zealand builder Sea Nymph, represents a rare intersection of American design pedigree and Southern Hemisphere maritime craftsmanship. Born from the drawing boards of Sparkman & Stephens as Design No. 2079, this 24-foot masthead sloop was conceived during a golden era of fiberglass production. While Sea Nymph is often synonymous with the "Hustler" powerboat range in Kiwi culture, their collaboration with S&S produced a series of keelboats that brought international offshore standards to a trailerable or small-mooring format. The S&S 24 was designed to provide a stiff, seaworthy platform for the unpredictable conditions of the Hauraki Gulf, effectively serving as a "pocket" version of the legendary S&S 34.

Sailing Performance & Handling

The S&S 24 is characterized by the hallmark balance and "groove" that defined Sparkman & Stephens designs of the 1970s. Unlike many modern 24-footers that prioritize internal volume and flat bottoms for planing, the S&S 24 features a traditional underwater profile with a moderate displacement and a well-defined fin keel. This configuration provides exceptional tracking and a sense of "big boat" momentum that is often missing in lighter vessels of this length.

Owners frequently report that the boat feels remarkably secure when the breeze exceeds 20 knots, a testament to its high ballast ratio. The masthead rig allows for a powerful headsail, which provides the primary drive, while the relatively narrow beam ensures the boat remains efficient upwind. While it may not match a modern sportsboat in a light-air downwind sprint, its sea-kindliness in a chop makes it a preferred choice for coastal passage-making. The helm is typically light and responsive, though, like many designs of its era, it will develop significant weather helm if the mainsail is not reefed early.

Interior Comfort & Variations

Despite its modest 24-foot LOA, Sea Nymph utilized the hull’s depth to create a functional, if compact, living space. The interior layout is traditional, usually featuring a V-berth forward, a central saloon with two settee berths, and a small galley area near the companionway. The cabinetry in Sea Nymph builds often utilized teak veneers or solid trim, reflecting the higher-end production standards of the time.

While the S&S 24 was the primary production model, it shared a spiritual and design lineage with the Sea Nymph S&S 28 (Design #2125). Buyers looking at the 24 often compare it to its larger sibling, which offers full standing headroom—a luxury the 24-footer compromises on to maintain its sleek, low-profile cabin trunk. The S&S 24 was primarily built as a fixed-keel yacht, though some minor regional variations in interior upholstery and engine configurations (inboard vs. outboard wells) exist depending on the original owner's specifications.

Known Issues & Buyer’s Checklist

Prospective buyers should approach an S&S 24 with the understanding that these vessels are now several decades old. While the hull construction by Sea Nymph was robust, specific areas require technical scrutiny:

  • Keel-to-Hull Joint: As with many early GRP fin-keel boats, the "smile" at the leading edge of the keel joint can indicate movement or the need for bolt tightening/replacement.
  • Chainplate Sealing: Leaks from the chainplates can migrate into the plywood bulkheads. Inspect the timber around the shroud attachments for soft spots or discoloration.
  • Window Seals: The original aluminum-framed windows are prone to leaking over time, which can damage the interior teak joinery.
  • Rigging Age: Given the boat's performance capabilities, many have been raced hard. A thorough inspection of the mast step and the standing rigging is essential if the history is unknown.

Community & Resources

Owners of the S&S 24 benefit from the broader Sparkman & Stephens Association, which maintains a deep archive of technical data and historical context for all S&S designs. In New Zealand, the Sea Nymph brand retains a cult following, and technical advice is frequently exchanged through local keelboat clubs in Auckland and Wellington, where many of these hulls are still active in "Classic" or "Small Boat" racing divisions.

The Verdict

The S&S 24 is a connoisseur’s pocket cruiser, offering a level of design sophistication and heavy-weather capability rarely found in boats under 25 feet. It is an ideal vessel for a solo sailor or a couple looking to explore coastal waters in a boat that handles like a 30-footer.

Pros:

  • Exceptional sea-keeping and balance for its size.
  • High-quality GRP construction from a reputable New Zealand builder.
  • Classic Sparkman & Stephens aesthetics that retain resale value.

Cons:

  • Limited headroom for taller sailors.
  • Aging hardware and potential for osmosis in early production units.
  • Cockpit can feel cramped with more than three adults aboard.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Fin
Rudder
1x —
Ballast
1680 lbs
Displacement
4640 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
24.16 ft
Waterline Length (LWL)
19 ft
Beam
7.67 ft
Draft
4.16 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Masthead Sloop
P (Main Luff)
28.8 ft
E (Main Foot)
12.4 ft
I (Foretriangle Height)
32.5 ft
J (Foretriangle Base)
8.8 ft
Forestay Length (est)
33.67 ft
Sail Area
331 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
19.03
Ballast / Displacement Ratio
36.21
Displacement / Length Ratio (D/L) Ratio
302
Comfort Ratio
23.12
Capsize Screening Formula
1.84
Hull Speed
5.84 kn