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Silent Yachts 62 3-Deck Open (2025-)
Brief Summary
The Silent Yacht 62 3-Deck Open is designed for ultra-long distance cruising at displacement speeds powered by electric motors energized by solar panels, with extended-range available from a diesel generator. The ship's massive battery bank stores energy for when it is needed. A rest, with a modicum of sunshine, the boat produces more energy than the house needs. Underway, depending on speed and conditions, the boat can be solar energy production/consumption neutral. At higher speeds, the range can be extended with the engagement of a generator designed for ultra-quick charging. Under normal island-cruising conditions with a mix of displacement cruising and anchoring, the Silent Yachts 62 can be totally self-sufficient.
Test Results
*The number of kiloWatts burned in one hour
**Newton Meters of Torque
***286 kWh capacity, reduced to 254.4 kWh to allow a 10% reserve
****Decibels on the “A” scale. Taken at the lower helm with all doors closed
Specifications
Length Overall |
62' 19 m |
---|---|
Beam |
29' 5" 8.99 m |
Dry Weight |
63,934 lbs 29,000 kg |
Draft |
3' 0.93 m |
Captain's Report by Capt. Ken Kreisler
Vessel Inspection
In creating their vision for a 62-foot, open flybridge vessel that was all-electric drive, the Silent Yachts design and engineering teams looked at their 80-foot model and decided to scale down the big cat to accommodate a smaller vessel easily handled by an owner-operator. In doing so, they created a sensible, and practical yacht, that can travel as long as there's sunlight.
Upper Deck, 3-Deck Open
Main Deck w/ Front Exit to Bow
Accommodations
Bow
The excitement aboard the Silent Yachts 62 3-Deck Open starts on the bow. With her beam of 29.5’/8.99m carried fully forward, this space affords the kind of room impossible to find on monohull vessels of her size.
Upper Deck
No matter where we looked on the Silent Yachts 62 3-Deck Open, we found wide open spaces designed and engineered for maximum use as entertaining and gathering areas. The upper deck proved to be quite impressive. And, with two versions, an open or enclosed bridge, further exciting options for its use are available, making this a highly personal yacht.
Main Deck Salon
Depending on which model you choose, entering from the bow forward or aft, the Silent Yachts 62 3-Deck’s main deck salon presents design and layout opportunities limited only by your imagination.
Living Accommodations
As we’ve seen, no matter where one looks aboard the Silent Yachts 62 3-Deck, and whether enclosed or open bridge options, excitement abounds. The living accommodations presents a four stateroom, four head layout, all in elegant décor and creature comforts.
A Word About Performance
For mariners who prefer to spend their time at sea aboard full displacement vessels going from six to eight knots with a fair tide and following seas, the Silent Yachts 62 3-Deck is heaven-sent. Moreover, with planning and careful management of energy, and some sunlight, the Silent Yacht 62 can go on an almost endless voyage around the world, with stops in all of the iconic locations, and ones that are better kept secret, to protect them from the hoards of adventurers to come.
The Propulsion System
Our test vessel was equipped with solar panels that were fastened to the sunny side of the hard top and the coach roof brow. Together they have a maximum energy-producing capacity of just under 17 kWp per hour. Peak energy production depends on the angle that the sun's rays hit the panels. In a nut shell: when photons from the sun hit the panels they excite electrons in the silicon cells that flow in a specific direction creating direct current (DC) which flows into the ship's batteries. In the case of the Silent Yacht 62 3-Deck Open, the panels can produce about 100 kW per day, depending on latitude, angle of the sun during the day, and cloud cover.
The Silent Yacht 62 is fitted down the center line of the vessel with 34 Lithium-Ion battery packs in two rows of 17. The batteries are directly under the salon deck, which keeps them high and dry. This is an important design element of the system, not only because it keeps them far from the bilges in each hull, but also to make them relatively easy to trade out when they've come to the end of their 3,000 cycle life (8 to 10 years depending on use), or to trade out for newer, improved battery technology. The total capacity of the batteries is 286 kWh. That means in typical conditions it will take about three days for the photovoltaic cells to fill the batteries to capacity from zero.
The other source of power is a 143 kW Hyundai generator that is fed diesel fuel from a 524.5 gallon (2,000 L) tanks. The generator is operated at about 2600 RPM where it burns about 8.9 gph, producing 110 kW per hour which means it can completely charge the 286 kWh batteries in less than two hours. This fast-charge system is one of the reasons for the boat's appeal. In fact, under normal long-distance operating conditions, the boat is run for four hours on battery at 6.45 knots, then that charge is replenished with diesel-generated energy for less than an hour before topping off the batteries and returning to silent running.
The generator can run 58.9 continuous hours, which means following this regimen the vessel can travel over 1500 miles on one tank of fuel.
At about 200 rpm, with a power consumption of 1.5kW per motor, our test boat had a calculated range of 278nm with a 10% battery capacity reserve. However, looking towards the near future, with the next generation of the 60-line of Silent Yachts, advancing battery technology will increase the capacity by some 21% thereby affecting the range as well.
Our ideal cruising speed, at 450 rpm, resulted in 6-7 knots. When we turned around and ran a reciprocal course, we noted a 7.2 knot speed while burning 37 kWh, and our calculated range was almost 50nm. However, by running the generator for 1.5 hours, fully charged our battery banks allowing another four hours of running time at 7.2 knots. Of course, the large array of solar panels also contributed by feeding back into the system. Finally, knocking her down to 300 rpm resulted in an energy burn of 10kWh at 5 knots and a 128nm range.
Managing the power output with the energy input, using the solar panels and the generator, can make the Silent Yachts 62 3-Deck quite the long-distance traveler. And, there is one final energy source that can be added at no running cost, and that is the wind. The Silent Yachts' kite sail system is ideal for long-distance travel, say, across the Atlantic or Pacific oceans, when plying the trade winds. Downwind only, of course. This optional towing kite makes use of the wind without compromising the solar panels. Available in either 9m- or 12m-squared sizes, it can fly high enough to catch the wind and pull the boat at 5 knots, says the builder. The kite effectively replaces the generator as a "range extender."
Observations
As Odysseus, that age-old seafarer of lore and legend, was said by Homer to have mused, “an thélete na páte grígora, xecháste to!” In the language of ancient Greece, it loosely translates to: “If you are looking to go fast, forget about it!”
Using this new equipment entails an understanding of the electric propulsion system, batteries and energy storage, and renewable energy such as solar panels, and the generator. It's not difficult, and most people we know consider it a lot more fun than simply putting the boat on autopilot and burning through tons of hydrocarbons. The results are environmental sustainability, much lower operational costs, virtually no propulsion maintenance costs -- and considerable noise reduction. In fact, under battery power, the only sound you will hear is the rustle of the water as the twin bows cut through it.
Remember, life is better on a boat!
Delivery of a SY62 & a Fano Shipyard Update
On board the SY62 3-Deck Closed with Maryline & Toon
There are plenty of reasons to choose Silent Yachts. Maryline and Toon, from Belgium, chose the new SY62 3-Deck Closed, in the owner’s suite version, for three main reasons.
Silence was the primary one. After years of enjoying the ocean, Maryline and Toon sought an escape from the constant engine noise that disrupted their experience. The quietness of Silent Yachts’ solar-powered catamarans was the natural choice.
Spaciousness was the second reason. The generous volumes of the SY62 perfectly align with Maryline’s desire to have the whole family around, allowing her to talk with them while cooking in the main deck’s expansive kitchen surrounded by the ocean.
Independence was the third. Maryline and Toon love to explore remote bays, away from the crowds of busy harbors. Silent Yachts makes this possible, allowing owners to generate their own power and enjoy more freedom and quality time on board.
Leveraging Silent Yachts’ exceptional layout flexibility, Maryline and Toon selected the owner’s suite version for their seaside adventures. This configuration is ideal for those seeking the ultimate privacy. Here, the third deck transforms into an exclusive suite with nearly 360° panoramic sea views and a private terrace, the perfect oasis to relax and unwind.
Listen to Maryline and Toon’s story and discover how their newly delivered SY62 is a dream come true for year-round journeys at sea.
Full Speed Ahead at Our Fano Shipyard
Production is in full swing at our Fano shipyard, where we continue to craft fully electric yachts with meticulous attention to detail and unmatched shipbuilding mastery. Thanks to our shift to modular construction, we have enhanced both quality and efficiency, reaching a production rate of one yacht per month.
After the successful launches of the SY62 3-Deck Open and Closed, we’re on track to deliver additional SY62 units by the end of the year. Our talented team of 190 skilled employees is also developing the highly anticipated SY80 2-Deck prototype, which is set to debut at the 2025 Cannes Boat Show. With an enthusiastic and growing team, we’re committed to pushing the boundaries of sustainable yacht craftsmanship and innovation.
Next Ports
Palm Beach International Boat Show | MARCH 19 - 23, 2025
Experience the SY62 3-Deck Open firsthand. Stay tuned to book your appointment.
Singapore Yachting Festival | APRIL 10 - 13, 2025
Don’t miss the world debut of the Silent 62 3-Deck Closed. Mark your calendar to schedule a private tour.