catamaran 44

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HH44 review: Taking fast multihull cruising to another level

• Toby Hodges
• February 22, 2024

Disruptive, innovative, and contemporary in style and technology, this electrified HH44 takes fast multihull cruising to a new level, says Toby Hodges

Product Overview

Price as reviewed:.

A fast, fun catamaran that is safe and comfortable may once have been a pipe dream, but is now perhaps the biggest growth market in yachting. However, creating a performance catamaran at or below 45ft is no easy task. It’s an elusive sweet spot because many buyers think they want what the 50ft+ catamarans offer but in a more manageable and, crucially, affordable package.

Meanwhile from the designers’ and yards’ point of view, that’s not so easily achieved – in particular the challenge of keeping a boat light enough to perform, yet offer all the amenities expected of multihull living.

Then try building something on which you can still turn a profit? That focusses the mind. It could be argued that those meeting this challenge most creatively and effectively at the moment are HH, led by experienced boatbuilder Paul Hakes, and in particular his son James – the 44’s lead designer. They describe this new baby of their range as ‘groundbreaking’.

The HH44 seemingly combines all the latest thinking around performance and technology while also adding a liberal sprinkling of fresh ideas, including being the first production catamaran to feature parallel hybrid propulsion. And all this while still being capable of ocean cruising.

Can such a feature-rich fast cat work harmoniously at this size though? I was keen to find out. A quick first sail during European Yacht of the Year trials in the autumn provided a taster and I hope a lengthier test will follow to draw more conclusions. But it was enough to get an idea of what works, what doesn’t, and get a feel for why this model has sold in such extraordinary numbers (over 30 off the plans alone).

Fresh thinking: unlike earlier Morrelli & Melvin HHs, the 44 has been conceived and designed fully in-house by James Hakes

A speed date

First impressions are of a very modern looking fast cat, more like a 50-footer perhaps that’s been squeezed a little, with length lost out of the ends. So there’s noticeably high freeboard and good bridgedeck clearance (over 3ft). The sporty look is set off by razor sharp bows and an attractive coachroof line, which extends right back to cover the aft helms. Next up you notice the powerful carbon rig, while even from the dock you can appreciate the formidable amount of natural light being encouraged in through the massive amounts of glazing in the coachroof and hull portlights.

The choice to go with aft helms triggered other design decisions, including keeping the boom (and centre of effort) low, and allowing HH to use the whole roof for a solar array. This resulted in a market leading 4.2kW of panels as standard.

Go to step aboard and you instantly appreciate some of the innovative features. For starters, with the boat moored side-on, you can actually step aboard via a gate in the aft bulwark, rather than having to perform some sort of gymnastic hurdle onto the transom steps, as you do on most high freeboard catamarans today.

Furling headsails set on a carbon longeron. All lines are led to the cockpit. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

This leads us on to one of my next favourite features: the folding transoms. Rather than the typical open transom steps that any clumsy crewmember, inquisitive child or pet can fall down and out of, the HH has lowering platforms which serve as a bathing platform, protect those aboard from falling out and, crucially, prevent a following sea from pooping the cockpit. And when you are helming from that far aft, this will be of real comfort.

Washboards are a popular option for many offshore cruising cats, but typically look like an afterthought and are used sparingly, where this is integrated into the design in a seamless fashion. Operation is also pretty neat: a line is led forward through the bulwarks to aside the helms, allowing a powered winch to be used. These lifting platforms also add extra usable space when folded down. The downside is they make the transoms look a bit high and, well, sawn off.

Smooth moves

We pulled away from the dock – in silence. The HH44 was designed from scratch to incorporate parallel hybrid propulsion. Not only do these ‘EcoDrives’ offer silent, fume-free motoring, but they can also hydrogenerate while sailing – more on that later.

Huge forward facing opening windows provide formidable through-flow ventilation to the interior. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

The test boat was the more popular and expensive Sports Cruising (SC) model, which is built in carbon epoxy and features C-shape carbon daggerboards, a Marstrom carbon mast and these EcoDrives as standard – 80% of orders have been for this, while an Ocean Cruising (OC) model is also offered with a gelcoat finish, aluminium mast and fixed keels.

Swing pedestals are used each side to allow the helmsman to steer either with an outboard view or from a more protected position beneath the bimini looking through the coachroof windows. This is an increasingly common practical feature on today’s catamarans and one fitted on the first HH66 a decade ago. It also allows you to free up some space when needed. Equally the fold down helm seats each side can be kept out of the way unless needed and while these do offer a nice perch, they are a little low for maintaining clear sightlines.

Once the sails go up you can quickly see why HH has incorporated such features as there is a lot going on in these aft quarters. You find yourself regularly swinging the helm over to get it out the way to work the winches. And yet there are still blind spots from the helms with pedestals canted – a drawback of having low helms right in the quarters.

Easy side boarding access. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

Sailing upwind with the Doyle square-top main and Solent set, we had a long beat into 11-15 knots true wind, making 7.5-8.5 knots against an awkward swell at 40° the apparent wind. Lining up against other yachts around us proved these were not far off performance monohull speeds and angles.

While beating into an ugly, sharp 2.5m swell is not what most owners might choose, it’s something all need to do at times and proved helpful to get a feel for the HH’s manners. It resulted in a predictably awkward twisting motion aboard, however the fine bows did cut through the swell well, keeping speed up, and the high freeboard kept the deck dry. It was also noticeably direct on the wheel and responsive to sail trim (this despite the traveller being locked in a central position after the line driver developed a problem earlier in the week).

We bore away and set a top-down gennaker, increasing average speed to 8.5-10+ knots depending on the swell angle. Again these are respectable figures considering a breeze of only around 11 knots apparent. The polars suggest double figures should be easy to maintain when reaching in anything above 12-14 knots true. I felt a clear difference in small wind increment gains. This is a stiff yacht, which reacts quickly to puffs – you really feel that extra couple of knots as the boat accelerates – while Cyclops Marine sensors help you monitor the loads in the rigging, which is reassuring.

In terms of operation the HH has been set up to be completely controlled from the helms. The upgraded, powered winches on the test boat can be remotely operated with foot controls, which is particularly helpful for short-handed work and adjusting the 5m-long daggerboards.

sporty, compact nerve centres leave good cockpit space. Single panel sliding doors, aft windows swing open and there is no mullion between them. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

Moving forward the decks are a lot cleaner, thanks to all running rigging led through line tunnels underdeck (even jib sheets). Toerails and high stanchions give a good feeling of security, while comfortable, grippy Eva foam decking comes as standard all over the deck. Foam decking has been used a lot on race boats in recent years and offers an appealing solution for cruising boats as it’s so comfortable under foot, easy to clean and doesn’t get hot like teak or teak alternatives. A question mark perhaps remains over its longevity and durability.

See the light

Such is the extent of the glazing and natural light encouraged into the HH44, it’s almost as if there is no inside/outside divide. Granted, there is a particularly glossy white decor on this first model, which helps emphasise that brightness (many other colour and trim combinations are offered), but the real key lies in the size of the coachroof windows.

The SC model has carbon epoxy infused hulls with E-glass decks and foam-cored furniture, essentially a highly stiff construction technique which also allows for the two huge tempered glass opening windows. As well as an overhead and two central hatches, these massive Lewmar windows provide phenomenal ventilation at anchor.

Over 2m headroom in the particularly bright and well ventilated saloon and galley. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

The bridgedeck layout is ideal to benefit from all this natural light and ventilation too, with its large forward-facing navstation and saloon, and a galley which seamlessly links to the cockpit. In the hulls it’s a three cabin layout only, but there are some choices in the forward starboard cabin, which can be a compact double, a Pullman or a utility cabin. It’s here where you see the prime payoff of having a performance cat, with ultra fine bows and large daggerboard casings stealing precious volume.

Parallel hybrid power

The aft berths lift on struts to reveal the engine bays below. At first these look like conventional 30hp Beta marine diesels, before you notice the water-cooled electric motors bolted on their aft ends. These act as electric drives, high powered alternators and hydrogenerators.

This EcoDrive system was designed to provide the key benefits of an electric boat, without sacrificing the backup of diesel engines. So essentially, they “piggyback on reliable normal diesel engines”, says Paul Hakes. The diesels can become two DC generators, putting 10kW into the battery bank while motoring, or the props can spin to charge while sailing.

Plenty of light and headroom plus inviting doubles aft, but volume is lost forward with the fine bows. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

The crew used only the electric propulsion to get the HH44 in and out of Port Ginesta multiple times per day that week. The 10kW electric motors can provide 1.5 hours propulsion at max thrust without charge – at which stage you can run a diesel. So effectively you end up having four engines, HH reasons.

The 840Ah lithium ion battery bank is large enough to run AC overnight without running an engine. High load items are on 48V while 12V systems use a DC to DC converter.

When you consider the high level of competition, such as the Balance 442, the Outremer 45 and the new Seawind 1370, the HH44 is the highest end in terms of cost and exotic build. The SC is the only one in its class to have carbon fibre hulls as standard, including carbon rig, bowsprit, daggerboards, and rudders, while the electric drives, 4.2kW of solar and 48V battery bank etc all come as standard too. I also like how HH’s price list labels every extra with its weight; so if you want full aircon in the boat, for example (a strange choice with this much ventilation), it’s a whopping 200kg extra.

43.2kWh of lithium ion 48V house batteries can be charged by solar, the diesel motor and hydrogeneration under sail. Photo: Ludovic Fruchaud/imacis.fr/EYOTY

James Hakes tells me they wanted to design the 44 in-house for multiple reasons: “It has so many new details not attempted before, and we needed very tight control over the design to execute them correctly.”

HH has “a lot of firepower to throw at design issues to rapidly iterate dozens of ideas” and needed to design it to be easy to build.

While HH’s production so far has been in Xiamen, China, the popularity of the HH44s and new HH52s is such that a new manufacturing facility is now running in Cebu, Philippines, which will help increase capacity to around 30 HH44s a year. This is also not a bad place for trial/shakedown sails or to start multihull cruising!

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The HH44 certainly packs in the attractions. A fast and sporty carbon cat with efficient daggerboards that’s reactive and fun to sail, with a bright modern interior. It boasts the most sail power and highest performance ratio in its class, so cruisers will need to handle this hull-flying capable cat with care. There’s as much light and ventilation as you could wish for, renewable energy, silent power yet with the reassurance of diesel back up, all topped with a generous serving of clever ideas on deck and in the cockpit. However, you pay for all this... It may have the benefit of being a more manageable size but it’s still a 50ft+ cat in price. As mentioned, though, what comes as standard is seriously impressive. While I have enjoyed sailing other aft cockpit cats before, I did find the helms on the HH44 a bit crowded and with blind spots – but I’ll reserve full judgement on that for a longer trial please! So while HH’s new baby is not perfect, it is quite brilliant. And after all, who would buy such a boat for marina hopping? This is for long passages, tradewind sailing and tropical anchorages, where it’s sure to turn heads. Mark this as your must view or sail cat for 2024.

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The first HH44 was launched in 2023 and premiered at the Cannes International Yachting Festival.

This innovative design is the “baby” of the HH Catamarans range and has some interesting features such as her closed transoms, swing aft helms and a side boarding gate aft.

She’s a very pretty cat and will turn heads in the marina. This is HH’s first hybrid electric-powered catamaran although you can also opt for standard diesel power with shaft drives.

There are 2 versions, like much of the HH range. The Sports Cruising model: HH44-SC and the Ocean Cruising model: HH44-OC. The SC version is a “no-compromise-boat” with C-shaped carbon daggerboards, a carbon rig, a painted hull finish and 4,232 watts of solar with EcoDrive.

The OC saves you some money with the same hull, interior fit and finish quality as the sportier SC but with an aluminium mast, e-glass longeron, white gelcoat finish and mini-keels as standard.

Many of the ideas on this boat have been driven by a desire to maximise solar generation. There are 4,232W of peak solar on the cabin top alone with an option for more on the davits.

To maximise the solar, they have positioned the helms aft in a traditional sporty set-up. That way, there’s plenty of surface area up top to load on solar.

To help you stay protected in weather, these swing inboard, under the long coach-roof.

There are foldaway seats that tuck into the sides allowing you to either steer the boat from an outboard position with the wind in your hair and your sails’ tell-tales in full view.

Or swing the helms inboard and steer from the protected three-seat sofa on the aft beam.

To make it easy to board the boat in the marina, there is a side gate aft for when you come in along the dock.

The HH44 has been designed to sail. The whole idea behind this catamaran is to get sailing in light winds (you should match wind speed on a beam reach) and to maximise your SOG over a wide range of conditions.

So she has a self-tacking staysail, a solent, a fractional reacher and a furling gennaker. The boom is very low over the coach-roof which keeps the centre of effort from the mainsail low.

There is a traveller aft on the coach-roof to manage your mainsail shape. The HH44 points well into the wind (45 TWA) thanks to her C-shaped daggerboards which provide a bit of lift at speed.

All the lines come back to the helm, so she is set up for short-handed sailing.

Pros & Cons

Light construction.

Carbon and epoxy have been used to build as strong and stiff a yacht as possible while minimising the weight.

All of the lines run under the decks, so you have clear walkways around the boat. Stanchions are 900mm tall and a continuous, unbroken toe rail runs the length of the deck with all hull and deck joints fused and hidden.

Living Space

Moving inside, you’ll notice that the aft cockpit and salon forms one fully protected space with a large sofa on the aft beam and her closed transoms make this a safe family boat.

The angular cabin has two large, forward-facing windows that open fully from the the generously sized (187 sq ft or 17.4m2) salon. The standing height is over 2m (6’6”) high throughout.

One of the things that sets the HH44 apart from her competition is the quality of the finish on this semi-custom yacht.  She has foam core furniture and exceptional joinery throughout, and Bosch electric appliances as standard.

There are two options for a BBQ, one which replaces the aft sofa with a large LPG BBQ & Dive Tank station or you can mount an LPG Grill in the aft fishing rod holder, keeping the aft sofa. There is an outlet on the aft beam so you can run an electric BBQ.

In the salon, there is an L-shaped sofa with a table forward to starboard and a large nav station/workstation to port.

Tuck yourself into the U-shaped galley behind the nav station or pull out some cold ones from the fridge on the starboard side. The ventilation at anchor is excellent with those huge forward windows.

The starboard hull is the owner’s side and consists of the master cabin aft and a walk-in shower and head forward. The finish has an Italian feel to it and it is very light down here with a large window aft in the owner’s cabin.

This is a 44 foot performance cat, so there is not as much room down her as you’d find in a cruising cat, but she has ample space in the aft cabin and the storage is well organised.

HH offers three different forward cabin combinations. One is the standard layout with a single berth.

The second has a Pullman berth above the standard bed that folds away when not needed.

A third option does away with the beds and replaces them with a large work bench with shelves (for pantry storage or tools) and an extra Fridge/Freezer unit.

If you go for the option with the EcoDrive, the House Bank is powerful enough to run the A/C overnight without the need to run a generator. There is enough power to run the A/C in the master cabin for over three days.

EcoDrive, her Electric/Diesel Parallel Hybrid System The HH44 was designed from scratch to work with a parallel electric/diesel hybrid, with a minimum of 4,232W of peak solar array on the cabin top and hydro-regeneration while sailing.

EcoDrive gives you silent fume-free motoring at 7.5kts, fast torque for manoeuvring, and hydro-regeneration while sailing. Plus you have parallel, trusty diesel engines for safety.

A diesel engine is paired with a large electric motor, much like an alternator sits on a traditional diesel engine. A belt links the two units and a camshaft allows you to flip between the two power systems, giving you good redundancy. And remember, you have 2 of these systems on board!

The system is designed to offer from 1.5 to 3 hours of electric propulsion: more than enough time to exit the marina or anchorage and hoist the sails.

This boat has been designed to get sailing in light winds which ultimately is the key to an eco-friendly sailing yacht. And you will be recharging your batteries as you sail.

You can also fit the HH44 with traditional standalone diesel engines with shaft drives.

The HH44 is an innovative design that will appeal to sailors setting out across long distances who want to sail more and beat well to windward when needed. This yacht is in a different price league to something like an Aventura 37 of course, but there are two options here: the Sports Cruising and the Ocean Cruising models.

She’s a comfortable boat, although there is a trade-off on space down below particularly in the forward cabins.

With the EcoDrive option and a bow locker full of sails, you’ll be able to minimise your diesel usage on this boat while crossing oceans safely and quickly.

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