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Review: Silent 55, the extraordinary solar powered yacht

Yachting World

  • January 18, 2019

Silent Yachts is tapping into the solar zeitgeist and creating a new meaning for the term ‘powercat’.  Sam Fortescue reports

Silent Yachts Silent 55

There is a slow, silent revolution under way in the yachting world. It is a revolution that is introducing tonnes of lithium and a sprinkling of silicon to the spec list of new boats. Holding out the promise of silent mobility, plus limitless domestic power on board, it made a big splash at the last Cannes Festival of Yachting – not least thanks to the new Silent 55 catamaran which debuted there.

From the pontoon side, the Silent 55 looks like a typical modern catamaran, with a big coachroof studded with windows and a flybridge helm. Except there’s no mast. Now, bear with me here. I realise that this is a sailing magazine, but we will shortly get back to more familiar territory. The unique qualities of this catamaran only become apparent from up top, where an expanse of solar panels stretches away fore and aft, embedded into the coachroof. The hard top itself carries yet more panels, and can be folded down flush to give an unshaded solar array of 49m2. During the heat of a summer day in the Med, this is capable of generating 10kW of power and up to around 60kWh in the course of the day.

Silent Yachts Silent 55 exterior

But to make a solar system work in reality, Köhler had to go back to the drawing board on yacht design. The saloon and hulls have extra thermal insulation to keep air-con losses down, and the use of carbon and aramid in key areas helps reduce the overall weight to a decent 17 tonnes (a Lagoon 52 weighs 22.5 tonnes). He has tried to keep windows out of the direct sun with long overhangs and in contrast to the Lagoon’s 12 deck hatches, the Silent 55 has just two.

Holistic design

On the other hand, it has lots of opening windows, to allow a natural draught to do its job. “It’s a holistic approach – you can’t take the batteries and the drivetrain and drop it into another boat.”

Of course, using the propulsion system quickly takes its toll of the boat’s 140kW battery bank. The model on display at Cannes had two 135kW motors, giving you just half an hour of silent motoring flat-out, albeit at a top speed of over 20 knots. More reasonable 30kW engines and a single-digit speed give you greater range. Nonetheless, the electric drive alone isn’t going to allow you to outrun a storm, or race home after a day at anchor, so the boat is designed to work with a generator hidden in the heavily insulated transom of its starboard hull. At cruising speed of around 5-6 knots, Köhler says there is rarely any need to use the generator, citing an owner who has just emailed him triumphantly about a second year totally generator-free. “In the end, you have to compare it to the performance of a sailing boat,” Köhler says. “It is as fast as a sailing boat in similar conditions – after all, there is no wind without sun.” He went so far as to tell me during the sea trial in Palma, Mallorca, that he believed the majority of sailors would happily dispense with the hassle of sails and a rig if only they could enjoy silent motoring and anchoring. “As soon as people realise the incredible concept of this boat, they won’t understand why they ever did anything else.”

The market does not seem to agree with him – yet. Sales of the boat have been good – they have already sold six, five of which are already in the water. But of those, four customers have taken the sail option, which means planting a 19.7m tall mast complete with boom and rigging slap bang in the middle of the coachroof solar array. “I was a bit amazed,” Köhler admits. “The shade from the rig reduces the energy generated by the solar area, while it costs more and is heavier, so consumes more fuel. Maybe it is for optical reasons.” In fact, the shade of the rig slashes the average yield of the solar panels in half. In the Med, that means around 30kWh per day. But perhaps it figures. The typical profile of buyers is an environmentalist who has a Tesla electric car and is “an early adopter who likes to have things before others”. And at low speeds, with modest use of the air-con, the reduced energy generation should still cover daily consumption.

Silent Yachts Silent 55 Sail Version exterior

The performance under sail should be reasonable because of the lightweight build of the boat, its broad 8.47m beam and stub keels added to each hull. Control lines are led back via conduits in the coachroof to the flybridge helm station, to make single-handing under sail a possibility.

More interesting, I think, is a sort of halfway-house option using a kite rig. This optimises the performance of the solar panels and gives plenty of propulsion. On the smaller 55 and the 64, Silent Yachts currently recommends a 19m2 kite that costs around €25,000 – a fraction of the cost of a new mast, boom, shrouds and sails. “The sail automatically makes a figure of eight above the boat, and you can steer it with a joystick or an app on an android phone,” Köhler explains. “It can propel the 55 at up to 6 knots, even in light winds.” Perfect for an Atlantic crossing, then.

For the bigger Silent 79, which will hit the water in the summer, a commercial grade Sky Sail system needs to be used – a smaller version of the ones used on cargo ships. This kite can propel the boat at ten knots, but it costs more than ten times as much as its smaller cousin. Both are capable of pulling the boat upwind. So far, so new. But outside the novel energy and propulsion system, the Silent 55 aims to do what many other cruising catamarans are trying to achieve. “Most of our clients order for circumnavigation and long-term cruising,” Köhler says. So the boat is aimed to be as comfortable and capable as possible with watermakers, TVs and an induction hob that all capitalise on the boat’s abundant energy. A flexible configuration allows owners the choice 
of between three and six cabins – the latter designed for charter. The owner’s cabin lies forward of the saloon, under the windows of the coachroof, which provide magnificent views and abundant natural light. There’s a walk-around bed and steps down into the starboard hull give access to an en-suite shower room and heads.

Silent Yachts Silent 55 master cabin

In my view, the best cabin lies aft of this, accessed in the traditional manner down steps out of the saloon. The king-sized bed lies athwartships and the shower is larger than that of the master cabin. There’s more space down here, better headroom and still plenty of light courtesy of the many hull lights.

Silent Yachts Silent 55 guest cabin

When I had the chance to sea trial the Silent 55, albeit in motorboat format, I jumped at it. It was a contrary autumn day on Mallorca with 15 knots breeze – just a shame, then, that this wasn’t one of the sailing configured versions.

To start with, getting on board is made really easy courtesy of deep boarding platforms on the skirts. She feels rather square because of that vast, glazed saloon with its deep overhang, and perhaps because of the utilitarian nature of the hard top, which is really about supporting more solar panels. Nevertheless, the side decks are broad and uncluttered. The space up top is designed to concertina down flat, hence the hydraulic rams, fold-down seat back and lowering console. It makes a great sailing position, though, with all round visibility, and is also perfect for sundowners at anchor. When the rain comes down, this feels quite exposed, but there is a fully sheltered helm at the front of the saloon, and it is also possible to drive the boat from anywhere using a tablet thanks to smart electronics. Under power, the handling is superb. The quietness of the motors is astonishing, and I gather they’ll be inaudible on the next boat, which will do away with the gearbox. Even in the aft cabins, directly above the motors, there is no more than a distant hum. The boat responds instantly to the power and the wind seemed to have no impact at all. As with any propulsion system, the power consumption jumps as you pile on the speed – it was sobering to see. At 6 knots, both motors drew 10kW but at 8 knots it was closer to 30kW. I liked the huge saloon with its raised table for 360º views. And the sliding door and window gives great access aft, connecting the saloon and cockpit in fine conditions. The finish was smart and in muted tones, feeling more Scandinavian than German.

Intriguingly, at least it seems to me, Köhler has tapped into something with the concept behind Silent Yachts – but not entirely for the reasons that he expected. Buyers are opting for the sail or kite versions of the boat because they want a comfortable wind-powered craft with abundant, quiet energy on tap. It brings a whole new meaning to the 
term ‘powercat’

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VIDEO: Silent Yachts 55 review

The Silent Yachts 55, with its battery bank and solar panels, is a glimpse into the future of motorboats, but is it a viable option for serious cruising?

As we gaze towards the horizon in search of what the future holds for the motor boat, solar energy and harnessing the power of electricity for propulsion loom large in our view.

Some boat yards are already ahead of the curve – Greenline has been banging this particular drum for a decade, while others like Sunseeker have only recently jumped on the bandwagon by unveiling a partnership with MTU that will result in its first diesel/electric production craft in 2021.

However, neither of these yards come close to the ambition of Silent Yachts and its solar powered range of all-electric motor catamarans.

This Austrian outfit claims to have solved the concerns many boaters have about the limited range of electric boats by creating a vessel with unlimited range and little dependence on fossil fuel that is a genuine, useable alternative to a conventional motor boat with an internal combustion engine.

Nor is this simply wishful thinking based on a virtual concept – several examples of the Silent 55 have already been built and we’re here to sea trial one to see if the boat of the future has in fact already arrived.

What do we actually have here, then? One of the major attractions of the 55 is that its design isn’t particularly wacky or off the wall. To the naked eye it is a 55ft power catamaran with a pair of shafts, two helm stations and all the voluminous accommodation one would expect of a big cruising multihull.

Underneath, however, there is a lot to unpick. There are three versions of the 55: the Cruiser, which has a pair of 30kW electric motors, the E-Power tested here with a pair of 135kW motors, and the Hybrid Power, which combines two 14kW electric motors with a pair of 220hp diesel engines for those who want to travel at higher speeds for long periods.

The wheelhouse and collapsible flybridge hardtop are home to 30 solar panels with a combined output of 10kW that can either feed the two electric motors directly or keep the 140kWh battery bank topped up.

There is still one combustion engine on board but it’s a 100kW Volvo Penta generator employed as range extender and charging aid if required. This burns a mere 33lph and is connected to a pair of 800-litre fuel tanks giving around 48 hours of running time.

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This New Solar-Powered Catamaran Has Unlimited Range and Is Completely Silent

Serene cruising at its best., julia zaltzman, julia zaltzman's most recent stories.

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Silent Yachts new solar-powered catamaran Silent-55

Imagine a yacht that makes no noise. A silent cruiser that glides through water. Powered by the sun, the Silent 55 does just that. New and improved, the upgraded version of Silent-Yachts’ oceangoing solar-electric production catamaran will debut at 2019 Cannes Yachting Festival —the only time in its life when it will create a ‘buzz’.

With the yacht sporting a completely revised drive-train with significantly more battery power, two times more powerful e-motors and structural improvements from its 2018 fore sister, the Austrian shipyard has confirmed that with one Silent 55 already built, three more are on order.

Thanks to solar-powered propulsion and household (meaning no generators are required to run the lights, air conditioning, etc.), and with electric propulsion when needed, the 56-foot catamaran has unlimited range, no noise or fumes, minimal vibration and is virtually maintenance-free. It’s smooth and serene cruising at its best where both the environment and owner’s enjoyment come first. And operation costs are kept to a minimum, too.

Silent Yachts new solar-powered catamaran Silent-55

Courtesy of Silent Yachts

“Our best-selling 16.7m innovative solar electric catamaran has been upgraded and become even better than it used to be,” says Michael Köhler, Silent-Yachts founder and CEO. “We did these updates and changes because we always try to improve and to install the best and latest technology available to satisfy our clients. We have built one new Silent 55 already and we’ve got three more orders for this model, which shows that we’re heading in the right direction.”

With 30 high-efficiency solar panels rated for approximately 10 kilowatt-peak, the Silent 55 uses maximum power point tracking (MPPT) solar charge regulators and lithium batteries, which enable it to cruise all night non-stop. A 15-kVA inverter provides power for all household appliances, and the electrical system even extends to a powered aft swim platform and a 1,500-watt electric windlass. On the rare occasion that the batteries require charging when out at sea, the generator can be used.

Silent Yachts new solar-powered catamaran Silent-55

Owners can choose from five different layouts to tailor the boat to individual needs, ranging from three to six staterooms with three or four heads. All staterooms offer double or twin berths, and all heads include a separate shower.

Lounging in the sun is afforded on the large open foredeck, while the hub of the yacht is located on the flying bridge where guests can gather for sundowners and panoramic views. And all for the base price of just 1.4 million Euro.

Read More On:

  • Cannes Yachting Festival
  • Silent Yachts

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BOAT REVIEW Silent Yacht 55

silent yacht 55 layout

  • The silence! Almost eerie.
  • Multiple areas for relaxing
  • Quality finishes wherever you look

The solar-powered Silent 55 catamaran is successfully pioneering renewable power in a quality and seaworthy design.

Solar cell development is a moving at pace which is creating more uses for it, something Silent Yachts company founder Michael Köhler is acutely aware of. After many years of voyaging on conventional power boats it led him and wife Heike to build their first electric prototype which they sailed for five years and 15,000nm before founding the company and constructing their first production Solarwave 46 in 2009. She was the first renewable-powered blue-water catamaran.

silent yacht 55 layout

I first met the Köhlers in 2017 when they arrived at La Grande Motte boat show with the Silent 64, which I took out for sea trials. I recall gliding along on the Mediterranean at 10 knots while the twin electric motors hummed quietly, consuming 64 kilowatts, before we throttled back to a cruising speed of 6.6 knots for a more sustainable consumption of 31 kilowatts. I steered with a Raymarine autopilot dial and the twin throttles (but a conventional wheel clips into place for traditionalists). The latest boat, the Silent 55, has advanced substantially from the 64, especially with the developments in much more powerful lithium batteries. Along with the Silent 55 and the Silent 64, the other models in the range are the Silent 55 VIP Ferry and the upcoming Silent 79.

The electric proposition The Silent Yachts proposition to buyers is that their systems require hardly any maintenance and produce no fumes or noise so the operational costs are substantially lower compared to power yachts using more traditional propulsion systems. This Silent 55 cruises in the remote Mergui Archipelago in Myanmar during winters so has to be self-sufficient. The company offer several varieties of its vessels, including sailing versions, kite-powered versions, electric ones and a hybrid model. Our review boat was the electric version with upgraded 2 x 135kW motors that achieve 14 knots and a large optional diesel generator.

silent yacht 55 layout

At first glance the Silent 55 looks like many other power catamarans – a tall flybridge above a large squared-off saloon and spacious lounge decks fore and aft. Looking closer revealed the reason for the large topside structures – these areas host the solar panels. The overall shape is fairly sleek and low-slung to reduce windage. But to maximise the extensive inside space requires upright topsides and squared bulkheads in the saloon which somewhat compromises the aesthetics. So it doesn’t have the smooth curves of a Tesla electric car but, like these vehicles what counts is under the hood.

silent yacht 55 layout

Apartment-style saloon Cruising catamarans attract buyers for their comfort and stability. The two hulls allows them to carry heavy loads and of course contain a lot living spaces. Looking around the Silent 55, it doesn’t disappoint in any of these areas. Walking inside from the sheltered aft deck reveals a spacious saloon to me with galley at the doorway, dinette on the forward port quarter and steering console opposite. Ahead is a deck level owner’s suite, an unusual feature; and up to six cabins can be optioned on the Silent 55. The U-shaped galley on the portside comprises a deep sink, electric cooktop, dishwasher and worktop space nearby on the starboard side as well, making it an effective cooking space with lots of cupboards; ideal for those blue-water voyages. Refrigeration consumes the most energy on yachts but is an essential so there’s a drawer fridge; in addition our review boat had a large upright household fridge.

silent yacht 55 layout

The other big consumer is air-conditioning which is a 50,000 BTU reverse-cycle unit on the Silent 55 – it heats as well as cools. Most usefully, there’s a water-maker powered by the solar-electric system, which produces 100l/per hour, so enough to supply a boat load of passengers. Other good galley features include a sliding window that opens aft to the outside dinette area.

silent yacht 55 layout

But in sunny weather, running at 5 knots, the Silent 55 can do 100 miles daily. The hydraulic steering wheel felt heavy, something that the company was going to rectify, as it consumes more energy from the autopilot. But turning the wide catamaran was done easily, as it gently glided around; with no smoke or noise. All I could hear was the water streaming past the fibreglass hulls and the feel of the wind on my face.

2019 Upgrade to Silent Yacht 55

The Cannes 2019 boat show saw the arrival of an upgraded Silent 55. Key improvements include higher-powered 250kW motors as standard and increased stored power (210kWh batteries compared with 70kWh). More efficiencies have been found through a redesigned drive-train that minimises friction and reduces mechanical noise. Following customer feedback some interior design improvements have also been made, says Köhler. “We did these updates and changes because we always try to improve and to install the best and latest technology available to satisfy our clients. We have built one new SILENT 55 already and we’ve got three more orders for this model, which shows that we’re heading the right direction”.

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Silent-Yachts Updates Its 55

  • By Victor Tan
  • Updated: July 9, 2019

Silent 55 from above

Silent-Yachts has updated its eco-friendly Silent 55 power catamaran .

The upgrades start with a revised drive-train. It has twin 250 kW e-motors, a 210 kWh battery capacity (a 90 kW increase from the previous battery) and 32 solar panels that allow the yacht to run solely on solar power. The new Silent 55 can reach a reported 20-knot top hop and cruises at 12 knots. A 15 kVA inverter also supplies power to all appliances.

The newer Silent 55 has five accommodations layouts, ranging from three to six staterooms and three or four heads. The master stateroom is amidships and full-beam (28 feet). Speaking of space, the updated Silent 55 has about 131 square feet of it between its salon, helm and galley. And the yacht’s flybridge overhang shades the cockpit. The flybridge provides unobstructed sightlines.

Silent 55 Stateroom

The new Silent 55 comes with a 50,000 Btu air-conditioning system. When cruising in cooler climes, the system’s reverse-cycle heat should keep everyone warm. Guests can also adjust temperature in each room. Structural improvements also lend themselves to better noise reduction. The Silent 55 is built via vacuum-bagged resin-infusion. Additionally, the Silent 55’s hull form has carbon-fiber reinforcement at the vessel’s stress points and vinylester resin helps prevent osmotic blistering.

The upgraded Silent 55 should debut at the 2019 Cannes Yachting Festival in September.

For more information, visit: silent-yachts.com

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2022 Silent Yachts Silent 55

Silent Yachts Silent 55

Silent 55 Green Power and Solar Panels

25 February 2019 Dominique SALANDRE New Boats , News 0

The Silent 55 is a new kind of boat which uses solar power via special panels, li-ion batteries and electric motors by Silent-Yachts. This boat sets a new trend in terms of ecologically oriented and careful yachting that respects nature and guarantees owners full comfort in total silence. Michael Köhler, CEO of SILENT-YACHTS, explained: “ Purely solar-powered yachts become a commercial reality now. Even if we keep a diesel generator on board our catamarans, this is for safety reasons. An owner of the SILENT 46, for instance, told me that he did not start a generator for the last two years despite he spends the whole summer on the boat with guests cruising around Greek islands. ” Köhler   adds: “ Solar is a more practical generator of power than wind, hydro-generation or other technology because the sun is much more reliable than the wind in the common holiday destinations. Most people are searching for a sunny – not for a windy – holiday destination. Hydro generation only works when the boat is being moved – not on anchor. When moving, the hydro generation reduces the speed in the same way as it generates energy minus the loss for friction and efficiency. It decelerates the boat twice as much as it generates power. Nobody can beat physics. The efficiency of the panels that we use in SILENT-YACHTS is 23%, which is strong in today’s world. We use Sunpower panels, by far the most efficient commercially available panels on the market. There is a perception that with time solar panels become less efficient. This is not an issue anymore. Sunpower guarantees  80%  efficiency after 25 years. Believe me, after that time span, you will be glad to change them voluntarily, as more efficient panels will be available for much less money. ”

Battery technology problem has also been passed. “ Advanced batteries allow SILENT catamarans to cruise day and night without stopping ”, comments Michael Köhler. “ As technology improves, we can go faster during the night and the batteries will be lighter due to higher energy density. ”

Configurations

The Silent 55is available in several power configurations to suit a variety of cruising applications. All of them stick to the SILENT-YACHTS philosophy of relyingmainlyon solar power for propulsion and onboard power needs.

The standard “Cruiser”   version of the Silent 55   has 2 x 30 kW turnable saildrives e-motors, while a more upgraded “E-Power”   version is equipped with 2 x 250 kW e-motors. There is also a “Hybrid Power”   version with 2 x 220 hp diesel engines and two 14 kW electric motors. A “Sailor”   version can be equipped with all the previously mentioned drivetrain configurations and is rigged with a mast and sails to provide additional propulsion in fair winds. With 30 high-efficiency solar panels rated for approximately 10 kilowatt-peak, the Silent 55 uses maximum power point tracking (MPPT) solar charge regulators and lithium batteries, which provide capacity for all-night cruising, while a 15-kVA inverter provides power for all household appliances. The systems requires hardly any maintenance and produce no fumes or noise. Because of that, the operational costs of the vessels are substantially lower compared to power yachts using more traditional propulsion systems. Michael Köhler, SILENT-YACHTS CEO, said “ What this represents to the yachtsman, among other features, is the ability to cruise for many hours at normal speed and throughout the entire day and evening at reduced speed. SILENT-YACHTS sets the standard for an entirely new feeling in yachting: No fuel. No maintenance. Pure solar-powered luxury. ”

DIFFERENT LAYOUTS 

The Silent 55 is available in five different layouts ranging from three to six staterooms with three or four heads. A full-width central owner’s stateroom is the centerpiece in three of the layouts, with guest staterooms located in port and starboard hulls. All staterooms offer double or twin berths, and all heads include a separate shower. Other layouts are available on request.

Construction

The Silent 55is built using vacuum-bagged resin infusion to create a lightweight glass-sandwich composite construction that has sound- and temperature-insulating qualities. The hull is reinforced with carbon fiber at stress points, and uses vinylester resin to prevent osmotic blistering.

The Silent 55   hull shape was designed using extensive tank testing for optimal efficiency. The molds were then created using CNC milling for true replication of the refined, enhanced shape in the tooling. The Silent 55   has a shape both above and below the waterline that is designed to slip through the wind and waves with minimal resistance. Designed with sealed deck sections and collision compartments for safety, the Silent 55 uses watertight bulkheads and integrated interior furniture to create a torsion-resistant hull structure. The electrical system can allow such features as a powered aft swim platform, a 1,500-watt electric windlass, and other features yachtsmen have come to expect on world-class oceangoing cruising yachts.

Onboard experience

Because the Silent 55   is designed to range everywhere as a true ocean-going cruising yacht that is self-sufficient, she is equipped to keep her crew happy and comfortable for virtually any voyage. It starts with the benefits of the propulsion system. The Silent 55   can cruise efficiently for up to 100 miles   a day for weeks. At the same time, the arrangement of the components enables the system to power all onboard systems without need of fuel to power a generator. Because of her revolutionary design, the Silent 55   travels just with the sound of the wind, and the water streaming past the hull, with no smoke, noise, or vibration of engines. “ The generator is only used to recharge the batteries in the rare case when higher speed is required for longer periods of time or if the weather is bad for several days,”  Köhler   says. In addition to the ergonomics of the living spaces, the Silent 55   – thanks to her advanced conveniences – offers a comfort level that sparks peace of mind. A water-maker powered by the solar-electric system, produces enough water to supply a full six-stateroom company with reasonable rate of consumption. 

On the Silent 55, all onboard appliances operate on the 220/110-volt system, to which her crew might be used to from their homes. The galley has refrigerator and freezer space to sustain the crew and an efficient induction cooktop, precluding the need for carrying propane.

“ Under normal, average holiday conditions, the boat is self-sufficient with unlimited range without burning fuel, ” Köhlersays. But perhaps even more importantly, the time under way is spent enjoying the sounds of wind and water, with no fumes or vibration, with no noise but the laughter of friends and family.

  • Silent yachts
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SILENT YACHTS 55

photo of Silent Yachts 55

SPECIFICATIONS

  • Length Overall 54' 8
  • Max Draft 3' 9
  • Displacement 34,400 Lbs.
  • Water Capacity 264 Gallons
  • Fuel Capacity 422 Gallons

The Silent Yachts 55 is an ocean-going catamaran that meets the highest ship building standards, respects the enviornment, and makes no compromises regarding luxury cruising at the same time. This yacht is powered by solar energy. In the standard configuration, the two 30 kW electric motors achieve a maximum speed of 12 knots.

With a Silent Yacht, it is possible to cross the oceans with pure and clean solar energy, without giving up any comfort from a conventionally powered yacht. Imagine silent cruising every day with an inspiring sunrise as well as a breathtaking sunset.

Up to eight guests can enjor four luxury staterooms on board the Silent 55. Each suite is equipped with air conditioning and an ensuite bathroom. Thanks to the 27' 7" beam, the Silent 55 has a massive platform to create an incredibly comfortable and spacious interior.

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Interested In This Yacht?

Contact United Yacht Sales below!

photo of Silent Yachts 55

Silent Yachts 80

silent yacht 55 layout

Sunlight Yachts

XO EXPLR SERIES

silent yacht 55 layout

Inspired by Nordic environment.

Introducing another great boat to our range of outstanding boats, the EXPLR 9 is the first of the second generation of boats to be launched. Making its debut at Boot Düsseldorf 2020 and improved 2021, EXPLR 9 comes with more width and volume than its predecessors, giving the boat extra stability and capacity.

With its accommodation capacities and weatherproof cover, EXPLR 9 is the perfect boat for the adventurers travelling in all corners of the planet. The boat can be installed with air-conditioning and a heater.

The renewed EXPLR 9 takes you to all new dimensions when it comes to driving comfort, multi-purpose use and design that fully pays attention to the versatile needs of modern boaters.

Cabin boats rarely provide the kind of driving convenience the full suspension seats of EXPLR 9 do – the co-pilot’s seat is available as an option. Speaking of convenience, the exceptionally spacious cabin is outright ideal for rest and relaxation that the extraordinary sound- proofing efficiently supports. A bed that stretches all the way to 230 cm, roomy and well-equipped toilet as well as a full-size refrigerator ensure that the crew can truly make the most of the time at sea, even during longer trips. Should the sunshine get too hot to handle, optional air-conditioning makes life in the cabin a sheer pleasure.

Bigger size, lighter weight, more spacious interior and a bit calmer personality do not translate into any compromises when it comes to EXPLR 9’s ability to perform. The pilot can truly make the most of an enjoyable ride in the sun by opening the roof hatch, standing up and letting the gentle summer wind blow.

The completely renewed EXPLR 9 takes you to all new dimensions when it comes to driving comfort, multi-purpose use and design.

GENERAL INFORMATION

Overall length (exc. engine), draft to props, weight (excl. engine), classification, technical information, outboard engines, max speed range, construction, fuel capacity, fuel consumption, cruise, sunlight yachts, office mallorca.

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IMAGES

  1. Silent Yachts 55 Catamaran

    silent yacht 55 layout

  2. Aménagements et vie à bord du Silent Yachts 55 E-power+, tout le

    silent yacht 55 layout

  3. Le Silent 55, le yacht catamaran à propulsion solaire

    silent yacht 55 layout

  4. Silent 55: World debut of production oceangoing yacht with self

    silent yacht 55 layout

  5. Silent 55: World debut of production oceangoing yacht with self

    silent yacht 55 layout

  6. Silent 55: Is this the world's most cost-efficient mobile home?

    silent yacht 55 layout

VIDEO

  1. The all-new Silent Yachts 120, an eco-conscious solar vessel that allows true exploration! #yacht

  2. Silent Yachts 120 Preview: The best solar-powered yacht for living a dream life 🌞🛥️

  3. Sailing team Pontos on X-Yacht 55

  4. $550,000 Ocean Yacht 55

  5. Silent Yachts

  6. An Atlantic Crossing on a Silent Yacht!! Told by the Captain

COMMENTS

  1. SILENT 55

    In November 2019 the SILENT 55 won the "Best of Boats Award" in the "Best for Travel" category. This special category is defined as "suitable for long-distance travel with all the amenities to live permanently on board, adapted to both inland waters and the harsh conditions at sea". In general, it can be handled easily by two people ...

  2. Review: Silent 55, the extraordinary solar powered yacht

    On the smaller 55 and the 64, Silent Yachts currently recommends a 19m2 kite that costs around €25,000 - a fraction of the cost of a new mast, boom, shrouds and sails. "The sail ...

  3. Tested: Silent 55 Solar-Electric Power Catamaran

    A product of this design collaboration, the Silent 55 launched in 2018, but the team has continued to improve and upgrade its drivetrain. The hull I sea trialed in late 2019 was powered by twin 250-kW e-motors, giving it a solid cruising speed of 10 to 12 knots. Under solar power alone, the yacht makes 5 to 6 knots.

  4. Silent Yachts 55

    A solar-powered catamaran with nearly unlimited range. By Phil Draper. Updated: April 16, 2019. Silent Yachts 55 is the Quiet Powercat Courtesy Silent-Yachts. For a quiet yacht, the first Silent-Yachts 55 power catamaran has made a lot of noise. It is the world's first mainstream yacht with a fully functioning solar installation as standard ...

  5. Silent Yachts 55: Liveaboard test of this future-proof electric catamaran

    An extended stay on board the revolutionary Silent Yachts 55 allows us to assess whether this really is the future of the motorboat. The April 2019 edition of MBY - our Future of Boating special - included a boat test of the Silent Yachts 55 in, shall we say, less than ideal conditions. Given that the boat is a solar-powered power catamaran the sheeting rain that we endured during our ...

  6. PDF www.ecoetech.com

    www.ecoetech.com

  7. PDF SILENT 55

    SILENT 55 ideal for families cruising with or without additional crew. THE AWARD WINNING TRAVELLER SILENT 55. SILENT 55. specifications LENGTH OVERALL 16,70 m (54,8 ft) BEAM OVERALL 8,46 m (27,7 ft) ... Multi-Award Winning Design & Engineering [email protected]

  8. PDF General Specifications

    [email protected] Specifications Silent 55 2018-10 page 3 INTERIOR Layout Versions • VERSION 3/3: 1 full-width (>7 m) VIP-cabin in the front, 2 VIP-cabins with en-suite bathrooms in the hulls (= 3 cabins, 3 bathrooms) Other optional variations: • VERSION 4/3: port-side 2 twin- or double-bed cabins sharing 1 bathroom, starboard 1 VIP ...

  9. Solar Powered Silent Yachts 55 walk-around

    We tour the Silent 55 solar catamaran. Show all the features including the solar panels, rooms, cabins, deck, helm, master cabin, batteries, and generator. T...

  10. Silent Yachts' Silent 55 Solar-Powered Catamaran Revealed at Cannes

    Silent Yachts' Silent 55 catamaran runs on 100-percent solar power for weeks on end. Like the automotive, aviation, and, let's face it, nearly every other industry, yacht builders have caught ...

  11. SILENT 55

    #SilentYacht55 - Edited and produced by #Way2SeaVideography by Mario Jelavic. MORE INFO & LINKS : WEB http://www.mariojelavic.com/FACEBOOK https://m.facebook...

  12. VIDEO: Silent Yachts 55 review

    The Silent Yachts 55, with its battery bank and solar panels, is a glimpse into the future of motorboats, but is it a viable option for serious cruising? ... One of the major attractions of the 55 is that its design isn't particularly wacky or off the wall. To the naked eye it is a 55ft power catamaran with a pair of shafts, two helm stations ...

  13. Silent-Yachts' New Solar-Powered Catamaran Has Unlimited Range

    A silent cruiser that glides through water. Powered by the sun, the Silent 55 does just that. New and improved, the upgraded version of Silent-Yachts' oceangoing solar-electric production ...

  14. ® OFFICIAL Silent Yachts

    Solar yachts by Silent Yachts are the first ocean-going production yachts in the world which are powered by solar energy. Electric yachts. Skip To Content. TEL:+39 0721 1631220; English. German; ... Timeless design meets state-of-the-art technology. Discover. 120 Explorer . The boldest expression of solar powered yachting yet. Discover.

  15. Silent 55

    In November of 2019, the Silent 55 won the "Best of Boats Award" in the category "Best for Travel". This specific category is clearly defined as "suitable for long distance travels with all amenities to live on board permanently". Exterior. Fly Deck . Interior . Length: 16.70 m / 55 ft: Guests: 6 ...

  16. Silent Yacht 55 ~ Boating NZ

    The solar-powered Silent 55 catamaran is successfully pioneering renewable power in a quality and seaworthy design. Solar cell development is a moving at pace which is creating more uses for it, something Silent Yachts company founder Michael Köhler is acutely aware of. After many years of voyaging on conventional power boats it led him and ...

  17. Silent-Yachts Updates Its 55

    Silent-Yachts has updated its eco-friendly Silent 55 power catamaran. The upgrades start with a revised drive-train. It has twin 250 kW e-motors, a 210 kWh battery capacity (a 90 kW increase from the previous battery) and 32 solar panels that allow the yacht to run solely on solar power. The new Silent 55 can reach a reported 20-knot top hop ...

  18. 2022 Silent Yachts Silent 55

    New 2022 Silent Yachts Silent 55. The Silent Yachts revolution has begun! Welcome to the new world of boating. ... Incredibly low maintenance and fuel costs, huge cruising capability and exceptional design and build quality make Silent Yachts an obvious choice for any discerning boat owner of the future.

  19. Silent 55 a very ecologic boat with new generation solar panels

    The Silent 55 is a new kind of boat which uses solar power via special panels, li-ion batteries and electric motors by Silent-Yachts. This boat sets a new trend in terms of ecologically oriented and careful yachting that respects nature and guarantees owners full comfort in total silence. Michael Köhler, CEO of SILENT-YACHTS, explained: "Purely solar-powered yachts become a commercial ...

  20. Silent 55: Is this the world's most cost-efficient mobile home?

    Silent Yachts will debut a vastly improved version of the Silent 55, a solar-powered, 55-ft ocean-going catamaran, at the 2019 Cannes Yachting Festival in September. With double the power of last ...

  21. Silent Yachts 55 Catamaran

    The Silent Yachts 55 is an ocean-going catamaran that meets the highest ship building standards, respects the enviornment, and makes no compromises regarding luxury cruising at the same time. This yacht is powered by solar energy. In the standard configuration, the two 30 kW electric motors achieve a maximum speed of 12 knots. ...

  22. Silent Yacht Charter

    Isabella was the fist Silent Yacht to come to the US. This Silent 55 was launched in 2017 and has a four stateroom layout, with the master suite located on the main deck. ... Also scheduled for delivery Q4 2022, this owner selected a five stateroom layout and separate crew accommodation. Request Details Hull #104 Charter. Name ...

  23. SILENT 55

    The renewed EXPLR 9 takes you to all new dimensions when it comes to driving comfort, multi-purpose use and design that fully pays attention to the versatile needs of modern boaters. Cabin boats rarely provide the kind of driving convenience the full suspension seats of EXPLR 9 do - the co-pilot's seat is available as an option.