Seacart 26 Information, Review, Specs

Seacart 26 Drawing
Make
Seacart
Model
26
Builder
Composite Marine Int./OceanLake Marine
Designer
Marc Lombard
Number Built
Production Year(s)
2011 - ??

The Seacart 26 represents a specialized evolution in the high-performance trimaran market, designed to bridge the gap between small beach catamarans and the larger, more complex Seacart 30. Launched by Oceanlake Marine in collaboration with the Marc Lombard Yacht Design Group, this 26-foot racing multihull was engineered for sailors seeking Grand Prix performance in a package that remains trailerable and manageable by a small crew. The vessel is constructed almost entirely of vacuum-infused carbon fiber and epoxy, utilizing the same high-tech pedigree that established its predecessor as a dominant force in offshore racing. While its footprint is smaller than the Seacart 30, the 26 retains the aggressive, "no-compromise" DNA of the Oceanlake brand, prioritizing a high power-to-weight ratio and structural rigidity over cruising amenities.

Sailing Performance & Handling

The Seacart 26 is defined by its explosive acceleration and ability to sail well above wind speed in almost all conditions. With a displacement of only about 800kg (1,760 lbs) and a generous sail area, the boat's Displacement to Length ratio is exceptionally low, placing it firmly in the "ultra-light" category of multihulls. On the water, the boat is known for its "flighty" but controllable nature; the use of curved C-foils in the amas (outer hulls) provides dynamic lift, which reduces drag and helps prevent the bows from burying when pressed hard downwind.

According to technical reviews by performance-oriented outlets, the Seacart 26 handles more like a large dinghy than a traditional keelboat. The helm is notoriously sensitive, providing immediate feedback from the deep carbon rudder. The boat’s ability to "fly" the main hull occurs early in the wind range, requiring a skilled hand on the mainsheet and traveler. Unlike the larger Seacart 30, which was built primarily for offshore sprints, the 26 excels in coastal racing and "round the cans" regattas, where its agility and ability to tack through narrow angles give it an edge over heavier cruising trimarans.

Interior Comfort & Variations

The interior of the Seacart 26 is a study in functional minimalism, reflecting its primary purpose as a racing machine rather than a weekend cruiser. The cabin provides a "sit-in" environment rather than standing headroom, with a spartan layout featuring up to four narrow pipe-cot style berths. The finish is largely raw or painted carbon fiber, which, while visually striking for performance enthusiasts, offers little in the way of insulation or sound dampening.

Variations of the model are primarily focused on the rigging and foil packages rather than interior layouts. The Seacart 26 One Design (OD) was the most common configuration, ensuring a level playing field for class racing. Some owners have modified the interior with lightweight storage bags to facilitate "raid-style" coastal trekking, but the lack of a formal galley or enclosed head limits its utility for anything beyond rudimentary overnighting. The sibling model, the Seacart 30, offers significantly more volume and a dedicated (though still basic) cabin, illustrating the 26’s tighter focus on the "pocket-rocket" racing niche.

The Seacart 26 gained significant traction within the European multihull racing circuits, particularly in the Baltic and Mediterranean seas. It was frequently highlighted in maritime media as a "benchmark" for the folding trimaran category, often being compared to the Dragonfly or Corsair models, though usually with the caveat that the Seacart is a far more aggressive, racing-centric platform. The model's development was documented as a pursuit of "Formula 1" standards for the water, a reputation bolstered by Oceanlake Marine’s close manufacturing ties with Marström Composite, a builder famous for Olympic-class carbon fiber work.

Known Issues & Buyer’s Checklist

Prospective owners of a used Seacart 26 should approach the purchase with the scrutiny required for a high-strung composite racing machine.

  • Carbon Fatigue and Stress Cracking: While carbon fiber is exceptionally strong, the high loads generated by the Seacart’s rig can lead to stress cracks around the beam-to-hull joints. A thorough inspection of the "folding" or demounting hardware is essential.
  • Foil and Daggerboard Trunks: Given the boat’s high speeds, the daggerboard and ama foil trunks are subject to significant lateral pressure. Check for play in the trunks or delamination around the trunk exits.
  • Rigging Tension: The Seacart 26 utilizes high-modulus synthetic rigging (such as PBO or Dyneema). Buyers should verify the age and UV exposure of these lines, as they require more frequent replacement than traditional stainless steel wire.
  • Ama Integrity: Inspect the outer hulls for any signs of "oil-canning" or soft spots, which could indicate a failure in the foam core, often caused by hard docking or collisions during aggressive racing maneuvers.

Community & Resources

Due to the specialized nature of the Seacart 26, the community is small but highly technical. The Seacart 26 Class Association was the primary hub for technical data and class rules during the boat's production peak. While Oceanlake Marine ceased operations in 2015, technical support is often sought through the Marc Lombard Yacht Design office or specialized multihull forums where former class members congregate to share tuning guides and repair techniques.

The Verdict

The Seacart 26 is an uncompromising speed machine that offers a level of performance rarely found in a trailerable 26-foot boat. It is not a vessel for the casual cruiser, but for the experienced sailor, it provides a direct, visceral connection to the physics of high-speed sailing.

Pros:

  • Elite Speed: Capable of exceeding 20 knots with ease in moderate breeze.
  • Advanced Construction: Full carbon/epoxy build ensures a rigid, lightweight platform.
  • Portability: The folding/demountable design allows for trailering to various racing venues.

Cons:

  • Minimal Comfort: The interior is strictly for sleeping or sail storage, with no luxury amenities.
  • High Maintenance: The high-tech materials and rigging require a disciplined and often expensive maintenance schedule.
  • Skill Demand: Requires an alert, experienced crew to handle safely in heavy air.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Trimaran Sailboat
Keel Type
Daggerboard
Ballast
-
Displacement
1543 lbs
Water Capacity
-
Fuel Capacity
-

Dimensions

Length Overall (LOA)
26 ft
Waterline Length (LWL)
-
Beam
18.33 ft
Draft
4.92 ft
Max Headroom
-
Air Draft
-
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

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

Calculations

Sail Area / Displacement (SA/D) Ratio
48.76
Ballast / Displacement Ratio
Displacement / Length Ratio (D/L) Ratio
Comfort Ratio
Capsize Screening Formula
6.35
Hull Speed
— kn