Design and Construction
The Sunward 48 is built with a long keel and a fiberglass hull, with solid fiberglass below the waterline and a solid fiberglass deck. Her length-to-beam ratio of 3.37 and beam of 14.25 feet give her the roomy, deliberate proportions of a passage-maker rather than a narrow racer. The wetted surface of the hull runs about 581 square feet, and the immersion rate is roughly 1909 lbs/inch, meaning she settles heavily under load — a trait consistent with her 54.33 comfort ratio and 60.4 Motion Comfort Ratio, both of which point to a hull that absorbs ocean motion rather than transmitting it. The capsize screening value of 1.49 and the theoretical displacement-hull speed of 8.3 knots round out a profile of a stable, voluminous cruiser.
Rig and Handling
She is built with a ketch rig, a configuration that splits the sail plan for easier shorthanded handling and redundant drive. The standing and running dimensions are generous: mainsail, jib, and spinnaker halyards each run 39.4 meters at 14 mm diameter, while sheets — jib, genoa, mainsheet, and spinnaker — scale to 14.6 to 36.6 meters at 16 mm. A Cunningham of 4.6 meters, kicking strap and clew outhaul each of 9.1 meters, all at 14 mm, complete the control inventory. With a sail-area-to-displacement ratio of 11.93, she is modestly powered for her weight; the ketch's divided rig helps compensate by keeping individual sails manageable. Under power, the Detroit diesel option at 127 hp drives her to a calculated 6.9 knots, while a Yanmar 4JH4-THE at 115 hp yields about 6.6 knots, both through a shaft drive.
Accommodations
Below, the Sunward 48 is equipped with two cabins and a mahogany interior, a traditional joinery choice shared with many cruisers of her era. A galley, a toilet facility, and holding for 120 liters of waste water support extended living aboard. Fresh water capacity is substantial at 1,900 liters, and the fiberglass fuel tank carries 1,200 liters — figures that suit long independent cruises. The two-cabin layout concentrates space into a forward and aft private area rather than scattering berths, which reads as a couple-or-family voyaging arrangement.
The Verdict
The Sunward 48 is a purpose-built heavy cruiser with the stability and tankage for serious passage-making, wrapped in a manageable ketch rig and a traditional mahogany interior. Her numbers — ultra-heavy displacement, strong comfort ratios, deep lead ballast — describe a boat that prioritizes seakindliness and self-sufficiency over speed or sport. The availability of two engine alternatives and a shaft drive keeps her mechanically straightforward.
Pros
- Ultra-heavy cruiser hull with 16,500 lb lead ballast and 50,000 lb displacement for offshore stability
- Ketch rig divides sail area for easier handling
- Generous 1,900 L water and 1,200 L fuel capacity for long-range cruising
- Motion Comfort Ratio of 60.4 and capsize screening value of 1.49
Cons
- Modest sail-area-to-displacement ratio (11.93) limits light-air performance
- Only two cabins may feel limited for larger crews
