Sea Pearl 28 Information, Review, Specs

Sea Pearl 28 Drawing
Make
Sea
Model
Pearl 28
Builder
Marine Concepts
Designer
Ron Johnson
Number Built
Production Year(s)
1990 - ??

The Sea Pearl 28 represents the evolutionary peak of Marine Concepts' "sensible cruising" philosophy. Designed by Ron Johnson as a larger, more capable successor to the legendary Sea Pearl 21, the 28-foot model was intended to bridge the gap between a trailerable daysailer and a legitimate coastal cruiser. It retains the signature sharpie-inspired hull form and cat-ketch rig that defined the brand, but adds the displacement and interior volume necessary for multi-week voyages. Built in Tarpon Springs, Florida, the Sea Pearl 28 is a rare find on the secondary market, as far fewer were produced than its smaller sibling, yet it remains highly sought after by "thin water" sailors who prioritize access to shallow anchorages over blue-water heft.

Sailing Performance & Handling

The Sea Pearl 28 is defined by its freestanding cat-ketch rig, featuring two carbon-fiber masts that require no standing rigging. This setup allows for an exceptionally clean deck and a simplified sail plan that can be reefed or furled by rotating the masts. On the water, the boat is surprisingly nimble for its length; the absence of a forestay allows the mainsail to provide clean air to the mizzen, making the boat highly balanced on most points of sail.

Handling is characterized by the boat’s shallow-draft nature. Utilizing a water ballast system—typically around 1,200 pounds—the boat can be kept light for trailering (approximately 2,500 lbs dry) and then weighted down for stability once launched. According to technical insights often shared by the Sea Pearl community and documented in historical Marine Concepts literature, the boat’s Sail Area to Displacement (SA/Disp) ratio sits in a range that favors light-to-moderate air, though the ability to quickly drop the mizzen makes it a resilient performer when the wind picks up. The use of leeboards or a shallow centerboard (depending on the specific hull iteration) allows the 28 to track well upwind while maintaining the ability to "beach" the boat in less than 18 inches of water.

Interior Comfort & Variations

Unlike the Sea Pearl 21, which is primarily an open-cockpit boat, the Sea Pearl 28 offers a fully enclosed cabin with standing headroom—an achievement made possible by its clever hull depth and, in many models, a "pop-top" companionway. The interior layout is traditionally arranged with a V-berth forward, a compact central galley, and twin settees that double as berths. Marine Concepts utilized high-quality teak accents and functional fiberglass liners to create a space that feels more like a traditional yacht than a trailer-sailer.

Variations of the 28-foot hull were limited compared to the 21, but the builder did offer customization in terms of auxiliary power. While many owners opted for a high-thrust outboard on a transom bracket, some hulls were fitted with small inboard diesels, though this significantly impacted the boat’s trailering weight and shallow-draft performance. The "Sport" version of the sibling Sea Pearl 21 influenced the 28’s construction, leading to the use of advanced composites in the later 28-foot builds to ensure structural rigidity without unnecessary weight.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the Sea Pearl 28 with a focus on its unique mechanical and composite systems:

  • Water Ballast Integrity: The ballast tanks and their associated valves (often referred to as the "Gate Valves") are the primary point of failure. Inspect the tanks for signs of weeping or delamination, and ensure the manual or electric pumps used to evacuate the tanks are fully operational.
  • Mast Step and Base: Because the masts are freestanding, the torque at the mast step is significant. Inspect the deck partners and the step at the keelson for stress cracks or compression.
  • Carbon Fiber Fatigue: If the vessel is equipped with original carbon fiber masts, check for UV degradation of the resin or "splintering" near the points where the masts exit the deck.
  • Leeboard/Centerboard Hardware: The pivot pins and lifting lines for the boards are subject to high wear. Check for "slop" in the trunk which can lead to vibration while under sail.
  • Deck Core: Like many Florida-built boats from the 1980s and 90s, the Sea Pearl 28 uses a cored deck. Use a phenolic hammer to check for "dead" thuds that indicate water intrusion and core rot, particularly around stanchion bases and the pop-top hinges.

Community & Resources

The Sea Pearl 28 benefits from a highly dedicated owner base centered around the Sea Pearl Owners Group, which maintains extensive archives of technical manuals and rigging guides. While the original Marine Concepts entity has evolved into a tooling specialist, technical support and historical data are often curated by long-time enthusiasts who document the fleet’s movements and modifications.

The Verdict

The Sea Pearl 28 is a specialist’s tool, perfect for the sailor who wants to explore the Florida Keys, the Bahamas, or the Chesapeake Bay without the constraints of a deep keel. It offers a unique blend of traditional aesthetics and modern composite efficiency.

Pros:

  • Extreme shallow draft allows for "unreachable" anchorages.
  • Carbon fiber cat-ketch rig is exceptionally easy to single-hand.
  • Trailerable size expands cruising grounds significantly.
  • High-quality composite construction from a builder known for precision tooling.

Cons:

  • Light displacement can lead to a "lively" motion in heavy chop.
  • Initial stability is lower than a fixed-keel cruiser until water ballast is engaged.
  • Limited production numbers make finding one for sale a long-term endeavor.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Centerboard
Rudder
1x —
Ballast
1200 lbs
Displacement
3750 lbs
Water Capacity
50 gal
Fuel Capacity
-

Dimensions

Length Overall (LOA)
27.67 ft
Waterline Length (LWL)
24.58 ft
Beam
8 ft
Draft
5.5 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

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

Calculations

Sail Area / Displacement (SA/D) Ratio
19.22
Ballast / Displacement Ratio
32
Displacement / Length Ratio (D/L) Ratio
112.73
Comfort Ratio
14.23
Capsize Screening Formula
2.06
Hull Speed
6.64 kn