Duffy Yachts' Duffield 58

Duffy Yachts blends quiet comfort with a cruising-couple layout in the Duffield 58.

Duffield 58
The yacht has many sound-attenuation features for a quiet ride and also has a Seakeeper gyro to help reduce roll.Courtesy Duffy

Wait. Doesn’t Duffy build electric boats? Yes, the California-based boatbuilder does. In fact, during the past four decades, Duffy has built more than 10,000 of them. But founder Marshall “Duffy” Duffield had a dream to create an efficient, quiet and stout ­single-diesel cruiser with traditional motor-yacht lines and a semidisplacement hull form.

Say hello to Duffy’s vision: the Duffield 58 Flybridge.

Visit the builder’s website, and with one look at his Hunt-designed, 56-foot wooden trawler Following Sea, you’ll see the inspiration for the 58, a modern take on the 1965 motoryacht.

Duffield 58
The Duffield 58's LOA is 61'3" and beam is 15'8".Courtesy Duffy

To help bring his idea to life, Duffy partnered with naval architect Doug Zurn, who has penned powerboats for everyone from Marlow to MJM to Billy Joel. Duffy and Zurn came up with a list of must-have features. The 58 had to have one-level living. Check. It also had to cruise at 17 knots on one motor. Check. And the yacht had to be owner-operator friendly for a cruising couple. Check.

Duffield 58
When the weather allows, take to the flybridge helm’s standard Llebroc helm seat. The console here includes a Caterpillar engine display, Garmin electronics and Glendinning bow-thruster controls. The family can join you for the ride on the L-shaped settee to port.Courtesy Duffy

Another requirement included using half the fuel of similar-size and -class vessels. We haven’t run the boat yet, but the builder says Hull No. 1 is equipped with the optional 1,000 hp Caterpillar 12.9 diesel and is burning 1.4 gallons per mile at a 17-knot cruise speed. I did some quick math: Based on the 58’s 1,000-gallon fuel capacity, and considering a 10 percent reserve, ballpark range at cruising speed is 642 nautical miles.

At 20 knots, fuel burn is reportedly 1.75 gpm. If you want to up the fuel ­efficiency by trading off a little speed, a 650 hp 8.7 Caterpillar diesel is available.

Duffield 58
The sense of tradition in the Duffield 58 goes well beyond the yacht’s lines. It also is evident in her interior: Satin-finish cherry wood is standard throughout the vessel. The salon sole is a Lonseal vinyl version of teak and holly, and a real wood sole is optional for purists.Courtesy Duffy

With 47 years in the electric-boat segment, Duffy knew that quietude is also key. The 58 has an enclosed shaft system to minimize vibration throughout the fiberglass hull. Taking the sound dampening a step further, the 1,000 hp diesel is on soft mounts abaft the salon. You should hear only the water running across the hull.

The 58’s look is traditional, but her build is thoroughly 21st century. The hull, topsides and bottom are vacuum-bagged fiberglass with Airex coring. Her stringers, soles and bulkheads are also resin-infused.

The cruising-comfort quotient is not lost on the builder, so the 58 has a three-­stateroom, two-head layout. There’s a ­forepeak master, and abaft to port and starboard are guest staterooms with full-size berths for another couple and the kids.

Duffield is a semicustom yard, but Duffy tells me that at the $2.5 million base price, this yacht is ready to go. So, where to?

Duffield 58
1. You can add a removable bait tank on the swim step. 2. The salon's soft goods are Ultraleather. Two barrel chairs are standard. 3. Galley countertops are quartz with cherry trim. Corian countertops are also available. 4. A watertight aluminum door with tempered glass, to starboard of the pilothouse helm seat, provides side-deck access.Courtesy Duffy