By Chris Caswell
Nordhavn 62 features strong lines and sturdy construction
The Nordhavn 62 is a development from the successful Nordhavn 46 of which more than 40 have been delivered. Built by P.A.E., the same company that offers the equally seaworthy Mason line of sailing yachts, the Nordhavn is dedicated to the yachtsman who wants to head offshore, and the genesis was equally unlike usual yacht building practice. It took four years of extensive research by naval architect Jeff Leishman to refine the hull and design parameters, with the goal being a yacht capable of carrying the owner and guests across the world’s oceans in comfort, safety and style.
To that end, Leishman started with a full displacement hull that would provide a less motion at a reasonable cruising speed. At the same time, he was aware of the positive results from ship-type bulbous underwater bow sections, and a tank testing program using nine-foot models led to the final design that includes a bulb. When compared to a conventional hull, the bulbed version showed a 10% reduction in resistance and it also reduced pitching by 20%, which translates to a sizable gain in both comfort and economy.
Construction was also designed in anticipation of the worst conditions. The entire superstructure is located in the after half of the Nordhavn, and the nearly flush foredeck with the high bow will be difficult to bury in head seas. The forward-slanting wheelhouse windows are protected by the Portuguese bridge combing against blasts of solid water and, in addition, are more than a half-inch thick. While normal drains handle rain and wash-down water, a seaman would approve of the oversized scuppers that can quickly release the weight of water from seas breaking on deck. The foredeck is ideal for carrying a large tender, and a Marquipt davit is provided for that purpose.
The hull is a solid laminate of vinylester resin (more than four inches thick at the bow!), and the main deck is a continuous laminate from stem to stern, which provides a far greater strength than multiple molded sections, as well as eliminating any potential leaks. The underwater bulb is foam-filled and the hull has four watertight bulkheads for additional protection.
While twin engines can be installed, a single engine was chosen as the standard arrangement since it provides greater efficiency and reduced noise and vibration. With the single engine configuration, a large, slow-turning propeller is located within an enclosed aperture for protection against debris and grounding and the single engine is placed lower in the hull for better stability than twins. Get-home power is provided by a 50-horsepower hydraulic motor, running either from a 30-kilowatt Northern Lights generator or from the main engine, turning a feathering propeller and providing a speed of 6 knots.
Standard power on the Nordhavn 62 is the Lugger L-6125A, a Komatsu-based diesel of 400 horsepower that can be rebuilt within the engine room. The main engine has a 30-kilowatt cruising generator that will run all the onboard systems including air-conditioning and watermaker at engine speeds above 1000 rpm. In the event of a failure, the Northern Lights can drive the cruising generator hydraulically, as well as provide power for the auxiliary drive system. Bow thruster, stabilizers and windlass are also hydraulically powered. Designed by Sea Trac Marine, the entire hydraulic package represents the latest in technology and has full back-up capabilities. The engine room is spacious, with room for the air-conditioning and heating systems, watermakers, scuba compressors and a workshop.
While the design, construction and mechanical installations lean heavily on commercial and fishing boat practice for strength and ease of maintenance, the interior is every bit a yacht. From the Ta Shing yard which also builds the Mason sailboats, the joinerwork and finish are as good as you’ll find anywhere in the world. Satin-finished teak is standard, but a wide variety of woods including ash, cherry, oak and mahogany are also available.
Yachtsmen want to see the bridge first, and it’s both efficient and comfortable. A raised settee with table is where guests will lounge, a pilot berth provides a place to get a few winks in mid-ocean, and a pair of chart tables are backed up by gigantic chart drawers under the settee. Each bridge wing has full controls, and there are also controls on the aft deck when you need to back into a tight space.
The salon, aft on the main deck, has all the comforts of home with settee and chairs, entertainment center, and a breakfast bar separating the large galley.
Forward and down, the master stateroom is located amidships for maximum space and minimal motion, with a queen-sized berth, writing desk, twin night stands, and private head with spacious shower stall.
Two guest cabins are forward, both with twin berths and sharing another head with shower. Crew quarters are in the bow, with two permanent berths, two pipe berths, a head with shower, and private entry from on deck. A fully-equipped workshop to starboard provides entry to the engine room as well as space for the washer and dryer.
With 2450 gallons of fuel, the Nordhavn 62 can cross the Atlantic in less than twelve days or, by reducing speed to 200 miles per day, she can go trans-Atlantic round-trip without taking on fuel. At 6 knots, her range is over 10,500 nautical miles while 8.5 knots still provides 5400+ miles. The sophisticated fuel system allows transfers from the various tanks as well as fuel polishing while underway and, at 8.5 knots, the Lugger-powered 62 consumes just 3.8 gallons per hour! Our speed test panel, by the way, reflects the Caterpillar-powered version.
Noise, which can be tiring and irritating on a long trip, has been very carefully addressed in the construction, and sheets of sound-dampening material line the engine room and fuel tanks. The watertight bulkheads fore and aft of the engine room also contribute to the suppression of noise and vibration and, at over 9 knots, the salon noise level was just 62 decibels.
Our test boat had just been launched and, with only a brief sea trial, was leaving for a leisurely 7000-mile cruise — a testament to the level of quality control of the Nordhavn 62. The first Nordhavn 62 was delivered on her own bottom, and future deliveries are expected to serve as the first leg of world cruises. While each 62 will be finished to an owner’s requirements, the base price is listed at $1,350,000.
|Displacement (half load)||115,000 lb.|
Performance (Caterpillar 3306)
PO Box 874
Dana Point, CA 92629