HH 55 Information, Review, Specs

Sailing Performance & Handling

The sailing characteristics of the HH 55 are defined by its exceptional power-to-weight ratio and its use of curved C-shaped daggerboards. These boards do more than just prevent leeway; at high speeds, they provide a degree of vertical lift, reducing the vessel's effective displacement and further enhancing its performance. According to an editorial review by Cruising World, which named the HH 55 the Best Multihull Flagship in 2018, the boat demonstrates remarkable agility, capable of reaching double-digit speeds in conditions where most cruising cats would be forced to motor.

Handling is typically managed from dual aft helm stations, which offer an unimpeded view of the sails and the horizon. However, the HH 55 is often equipped with the innovative "swing helm" system, allowing the wheels to pivot from an outboard position for visibility to an inboard, protected position during inclement weather. The boat’s performance is further bolstered by a high-aspect-ratio carbon rig and a sail plan that includes a powerful square-top mainsail. In a technical evaluation by Sail Magazine, the model was praised for its "light-and-lively feel," a rarity for a boat of its size and displacement, largely attributed to the precision of its carbon construction and the sensitivity of its steering system.

Interior Comfort & Variations

The interior of the HH 55 is a masterclass in weight-conscious luxury. To maintain the performance targets set by Morrelli & Melvin, the cabinetry uses honeycombed cores with thin timber veneers, providing the aesthetic of solid wood without the prohibitive weight. The standard "Owner’s Layout" features a massive master suite in the port hull, complete with a queen-sized berth, a dedicated office space, and a large head. The starboard hull typically houses two guest cabins, each with an en-suite bathroom.

Variations of the 55-foot platform include the HH 55 "Ocean Series" (often designated as the OC 55). While the core HH 55 is an all-carbon performance beast with daggerboards, the OC 55 variant was developed for cruisers seeking a slightly more simplified experience. The Ocean Series often replaces the complex daggerboards with fixed mini-keels and utilizes a gelcoat finish over e-glass/carbon reinforcements rather than the labor-intensive painted carbon hulls of the performance version. This sibling model offers higher load-carrying capacity and lower maintenance, though it sacrifices the raw upwind performance and top-end speed of the carbon-intensive original.

Popular Mentions & Media

The HH 55 gained significant international recognition shortly after its launch, sweeping major industry awards. Beyond its "Boat of the Year" accolades, the model has been featured extensively in documentary-style sailing media, notably through high-profile owners who document long-range blue-water voyaging. The vessel's reputation for speed was further cemented during various Caribbean regattas, where HH 55 hulls frequently outperformed dedicated racing monohulls on corrected time.

Known Issues & Buyer’s Checklist

Prospective buyers of a pre-owned HH 55 should approach the purchase with the mindset of a performance pilot rather than a casual cruiser, as the systems are highly sophisticated.

• Hydraulic and PLC Systems: The HH 55 relies on a complex Programmable Logic Controller (PLC) for managing everything from lighting to the hydraulic rams that control the mainsheet and daggerboards. A specialized technician should verify that the software is up to date and that the hydraulic seals show no signs of weeping under high pressure.
• Daggerboard Trunks: Given the curved nature of the C-foils, the daggerboard trunks and the bearings within them are subject to immense lateral loads. Inspect the trunks for any stress cracking or wear in the high-density polyethylene (HDPE) bearing surfaces.
• Carbon Rigging Inspection: Most HH 55s are equipped with synthetic (shroud) rigging. These components have a finite lifespan (often 5–8 years depending on UV exposure) and require ultrasonic testing or replacement to ensure structural integrity during high-load sailing.
• Finish and Paint: Since the hulls are carbon fiber, they are almost always painted rather than gelcoated. Buyers should look for signs of "print-through" or UV degradation in the paint, as refinishing a carbon catamaran of this size is a significant capital expense.

Community & Resources

Owners of the HH 55 benefit from a closely-knit community facilitated by the manufacturer. The HH Owners Association provides a platform for technical exchange, specifically regarding the optimization of the yacht’s electronic and performance systems. Additionally, because the boat was designed by Morrelli & Melvin, technical support and performance polar data are often available directly through their architectural office for owners looking to refine their racing programs.

The Verdict

The HH 55 is a superlative choice for the experienced sailor who refuses to choose between high-speed passage-making and luxurious living. It is a complex machine that demands an attentive owner but rewards them with performance that few other production catamarans can match.

Pros

• World-Class Speed: Capable of exceeding 20 knots and maintaining high averages in light wind.
• Advanced Construction: Full carbon fiber build ensures a stiff, durable, and lightweight hull.
• Innovative Helm Design: The swing helm provides the best of both worlds for visibility and protection.

Cons

• System Complexity: Requires a high level of technical knowledge to maintain the hydraulic and electronic systems.
• Draft Considerations: While the daggerboards retract, the high-performance rudders still require careful attention in thin water.
• Cost of Entry: Both the initial purchase price and the ongoing maintenance of carbon components are significantly higher than traditional fiberglass cruisers.