Design and Construction
Every HH66 is a full-carbon boat. The bulkheads, masts, daggerboards, and rudder posts are all carbon fiber, while the hulls are infused with epoxy resin using the very finest, strongest, and lightest materials available, according to the builder. Cruising World found the workmanship simply impeccable, with construction materials and details similar to those of the smaller HH55.
The hull profile runs full forward, flatter through the midsection, and broader at the transoms. It has less rocker than Gino Morrelli’s earlier Gunboat designs. The designer paired this shape with deep, C-shaped carbon daggerboards that increase vertical lift and lateral resistance while damping pitching.
Cruising World put displacement at just under 40,000 pounds, while Sailing World reported about 46,000 pounds fully equipped. The HH66 has a 28.5-foot beam and a maximum draft of 13.1 feet on its daggerboards.
Rig and Handling
The HH66 is built around the pure joy of sailing. Every example carries a forward pit, which eases line handling and passage making. The aft-helm version places two helm stations aft for better visibility and a larger salon, while the SCF (Forward Helm) variant emphasizes the sailing experience from inside.
Short carbon tillers and two wheels connect to the steering system. Push buttons in the armrest control the traveler, mainsheet, jib sheets, and the raising and lowering of the daggerboards. A panic button dumps and depowers the mainsail and vang in a sudden gust.
An electric halyard winch with halyard locks hoists the square-headed mainsail. The boat can also fly an all-purpose A5 spinnaker or Code Zero; unfurling the latter sees boatspeed race to 10 knots in a blink. A turbo-rig version adds still more sail-plan power.
An Ocean Data System UpsideUp anti-capsize system monitors cap-shroud loads. It can trigger alarms or ease the sheets automatically.
Accommodations
The HH66 is a bluewater-capable performance cruiser with spacious interiors and a luxurious finish. The builder encourages customization of the accommodations plan, allowing each owner’s layout to reflect personal taste.
The staterooms are luxurious. One inspected boat even carried a built-in piano, while another concealed a small piano in the forward navigation station to starboard. Identical molded helm seats sit at the aft ends of the port and starboard quarters. Like the HH55, the boat also has an inside steering station for sheltered command.
A forward locker houses the generator, hydraulics, and batteries for ideal weight distribution.
Systems, Tenders, and Ownership
HH offers semi-custom carbon RIBs or standard Highfield tenders. The EcoDrive option allows either diesel engines or electric motors to turn the propellers in fume-free silence. A parallel diesel/electric hybrid system, large cabin-top solar array, and hydro-regeneration support sustained offshore living.
Ownership assumes a professional context. The boat is typically run by a professional crew, demands a full-time captain, and requires eight to ten experienced hands to race overnight.
Verdict
The HH66 is a singular achievement in carbon-catamaran design: a bespoke, fly-the-hull cruiser whose systems prioritize both performance and controlled depowering. It’s built for owners who treat sailing as a managed professional operation rather than a casual pastime.
Pros
- Full-carbon structure, impeccable workmanship, and in-house engineering
- C-shaped daggerboards and a low-rocker hull that damp pitching and add lift
- Push-button sail handling, panic depowering, and anti-capsize monitoring
- Customizable, luxurious interiors
- Strong hybrid and solar options for offshore energy
Cons
- Requires a professional crew, a full-time captain, and large teams for racing
- No two boats are alike, so spares and familiarization are owner-specific
- Complex systems demand expert maintenance
