Cobra Cat Information, Review, Specs

Sailing Performance & Handling

The Cobra Cat is renowned for its high power-to-weight ratio and its ability to plane in relatively light air. Its 5-meter hull length is paired with a generous sail plan, typically featuring a fully battened mainsail and a jib. On the water, the boat is described as having a "prone stance," meaning it uses its hull shape to optimize lift and reduce drag when on a plane. The technical objective of the design was to reduce "nose diving"—a common peril of older catamaran designs—by increasing buoyancy in the bow sections.

In a racing context, the Cobra Cat is a twin-trapeze boat, which allows the crew to maximize righting moment and maintain flat-hull speed in heavy air. Anecdotal evidence from the Victorian Cobra Catamaran Association suggests the boat is exceptionally competitive against other one-design classes like the Mosquito or Stingray, often showing superior speed on reaching legs due to its refined hull volume. Tracking is described as precise, though the boat requires attentive sail trim to prevent the leeward bow from burying in short, steep chop. The inclusion of a jib provides the necessary balance to the large mainsail, making the boat surprisingly nimble during tacks—a maneuver that can be notoriously sluggish in smaller catamarans.

Popular Mentions & Media

While the Cobra Cat has primarily remained a staple of the Australian and New Zealand club racing scenes, it has a dedicated following that has kept the class alive for decades. The boat’s "cultural footprint" is most visible in the historical records of major regattas like the Lake Illawara Regatta and the various National Championships held across the eastern states of Australia. It is frequently cited in technical sailing guides for its longevity as a plywood-to-fiberglass transition boat, with early home-built plywood versions still occasionally competing alongside modern professionally built fiberglass hulls. The Australian Cobra Catamaran Association remains the primary repository for class rules, ensuring that even as materials have evolved, the competitive integrity of the fleet remains intact.

Known Issues & Buyer’s Checklist

Prospective buyers of a used Cobra Cat should focus on the structural integrity of the hulls and the condition of the rig, especially given the high loads generated by the twin trapeze setup.

• Hull Softness and Delamination: For fiberglass models, check for "soft spots" on the decks between the main and rear beams. For older plywood versions, inspect the interior stringers and the integrity of the glue joints at the transoms.
• Mast Base and Compression: The mast step takes significant downward force. Inspect the main beam for any signs of cracking or excessive deflection (which should not exceed 15mm at rest).
• Rudder Alignment: The Cobra Cat relies on parallel rudders for high-speed stability. Owners frequently report that the steering system can become "sloppy" over time; buyers should ensure the leading edges of the rudders are properly aligned with the hulls.
• Trampoline Tension: The trampoline provides much of the catamaran's lateral stiffness. Check the attachment tracks on the hulls for pulling or fraying, as a loose trampoline leads to hull "racking" and poor performance.

Community & Resources

The class is supported by a very active and technically-minded community. The Cobra Catamaran Association provides extensive documentation, including the Official Class Rules and comprehensive rigging guides. These resources are invaluable for owners looking to restore older hulls or optimize their rigs for modern competition. Local chapters, such as the Victorian Cobra Catamaran Association, host regular events and maintain a database of boat histories and sail numbers.

The Verdict

The Cobra Cat remains one of the most successful "weight-carrying" racing catamarans ever designed, offering a rare balance of accessibility and high-end performance.

Pros:

• High Payload Capacity: Excellent for heavier crews or "father-son" pairings without significant speed loss.
• Active Class Support: A robust association ensures a consistent racing calendar and technical support.
• Versatile Design: Equally capable on flat inland lakes and in coastal chop.

Cons:

• Physical Demands: As a twin-trapeze boat, it requires a high level of fitness and coordination to sail at its limit.
• Complexity: The rig and tuning options can be intimidating for novice sailors compared to simpler beach cats.
• Ageing Fleet: Many available boats are older and may require structural refurbishment.