N75 EYF
By James H. Kirby Contributing Editor
Nordhavn 75 EYF can take along everything its owners might want for having a good time—jet skis, tenders, dive equipment—it all fits. The yacht’s waterline length (LWL) of 66 feet 8 inches (20.28 meters) gives it an efficient cruising speed and the range to reach fishing grounds just about anywhere on the planet. The twin 740-horsepower (552 kW)turbocharged MTU diesel engines love to run long.
Low draft underbody
Built to go anywhere
A guided tour to the machinery and systems aboard a Nordhavn 75 Expedition Yachfisher
From an engineering stand point, the Nordhavn 75 EYF team at Pacific Asian Enterprises had a simple design brief: Build a first-class yacht capable of going anywhere in the world and functioning as a working platform for the serious sport fisherman. Simple maybe in concept, but executing it is an all-together different matter. Fortunately, first-class transoceanic yachts are nothing new to PAE. Like virtually all Nordhavns, chief designer Jeff Leishman started by giving the Expedition Yachtfisher a full-displacement hull with 20,000 pounds (9,072 kilograms) of ballast—enough to ensure stability in just about any sea condition. Additional stability comes from the yacht’s 22-foot 4-inch (6.8 meters) beam while 16-square foot (1.49 square 38
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meters)digital stabilizers help keep everything on an even keel.
Built for comfort and speed The hull shape starts with a fine entry forward then flares to a wide waterline beam that continues to the stern. The result is a hull that is easily driven, yet provides ample volume for equipment, stores and fuel, without adversely affecting the yacht’s stability or trim. So unlike the typical stripped-down, builtfor-speed sport fishing battlewagon, the
SITE SEE To view video clips and download other information about the Nordhavn 75 Expedition Yachtfisher, visit www. nordhavn.com/75/video_clips/.
A proper ship’s engine room The Nordhavn’s spacious engine room is entered by a gasketed, soundproof door located at the bottom of a short set of stairs just off the California deck. Despite the amount of machinery necessary to operate a big yacht like this, the engine room and machinery spaces look remarkably neat, clean and organized. There is easy access to all sides of the generators and engines for maintenance and a 30inch high (76 centimeters) stainless steel railing by each engine provides a safe barrier and handhold when at sea. Engine cooling is handled by two wet exhaust systems, while two large Multifan intake blowers and matching Multifan exhaust blowers, each capable of supplying as much as 4,638 cubic feet of air a minute, ensure an ample supply of intake air for the engines and crew. Additional blowers are located in the lazarette.
Walk-in lazarette The walk-in lazarette aft of the engine room houses the air-conditioning system, along with electrical and shore power www.circumnavigatormag.com
PHOTo: georgs kolesnikovs
Twin 740-hp MTU diesels get a digital tune-up in the N75EYF’s spotless engine room.
Thrust is transmitted to the 42-inch diameter (107 centimeters) Hung Shen propellers by Twin Disc transmissions turning massive 4-inch diameter Aqualoy shafts. The 5-blade propellers are located in semi-tunnels behind abbreviated skeglike twin keels. There is also a shallow main keel on the hull’s centerline. The short keels and tunnels permit the yacht to operate in shallower waters than it otherwise would be able to, while still protecting the props and rudders. Draft is 6 feet 10 inches (2.1 meters).