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A single-diesel catamaran

Aspen Power Catamarans this winter will premiere its third and largest boat: the C111 Motor Yacht, a three-stateroom 38-footer with a flybridge and a single 330-hp diesel. That’s right: With company owner Larry Graf’s asymmetrical cat design, the boat needs just one engine.

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“The Aspen ‘Power Proa’ hull design is very slippery, makes a small wake, and its drivetrain uses less fuel,” says Graf.

The Aspen’s port hull is 35 percent narrower than the starboard hull, which houses the engine, resulting in less drag and better efficiency, says Graf. The boat tops out at 21 knots and cruises at 16, burning 9 gph and getting about 1.8 nmpg. Fuel capacity is 180 gallons, and she’ll cruise for 286 nautical miles at 16 knots with a 10 percent reserve, says Graf.

In the pilothouse, seat heights match the window levels to maximize visibility. The helm has room for three 15-inch multifunction displays. Features include a six-seat U-shaped dinette, an aft bench seat that converts to a two-person recliner and a fully equipped galley that extends along the port side.

The master stateroom has a king-size island berth, along with two en-suite heads with separate showers. The guest stateroom has a single queen berth and sits opposite the third stateroom, which has a twin berth.

Standard diesel power is a 330-hp Volvo Penta; a 435-hp engine is optional. The flybridge has a second helm and wraparound seating. The first few boats will be flybridge versions; a sedan version is on the drawing board. Price is $652,000 with standard power.

Aspen Power Catamarans, Burlington, Washington, (360) 668-4347.

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February 2015 issue