Design and Construction
Fabola AB built the Diva 45 with a solid-fiberglass hull, using a straightforward, uncored layup. She has a fin keel and spade rudder.
Her ballast ratio is 46 percent—higher than 85 percent of comparable sailboat designs. That substantial weight low in the hull gives her a very high ability to resist heeling. Her ballast ratio is 46 percent—higher than 85 percent of comparable sailboat designs—and gives her a very high ability to resist heeling. Her length-to-beam ratio of 3.25 and displacement-length ratio of 141 point to an unusually roomy but light design: she is more spacious than 58 percent of similar boats and lighter than 90 percent of them.
The immersion rate is about 1,614 pounds per inch, suggesting a hull that loads predictably. Wetted surface is roughly 559 square feet, defining her hydrodynamic footprint.
Rig, Performance, and Handling
The Diva 45 carries a fractional sloop rig and is slightly overrigged, with more sail plan than 62 percent of similar sailboats. Her combined mainsail and jib area is about 880 square feet.
With a reference sail, the sail area-to-displacement ratio is 22.7. It rises to 26.3 with a 135 percent genoa, giving her light-air performance that exceeds 98 percent of similar designs.
That speed-oriented character comes with a firmer ride. Her motion comfort ratio of 21.2 is more comfortable than only 12 percent of similar designs. A capsize screening value of 2.03 means she would not be accepted to participate in ocean races, placing a clear limit on her intended sailing envelope.
The Diva 45’s theoretical maximum hull speed is 8.1 knots. With the optional Yanmar 4JHE diesel, her calculated maximum speed under power is about 7.6 knots.
Accommodations and Cruising Practicalities
The 3.25 length-to-beam ratio gives the Diva 45 a cabin plan that feels open compared with those of her peers. Her 46 percent ballast ratio also provides strong resistance to heeling while sailing.
Draft ranges from 7.7 to 8.0 feet, depending on load. That makes her better suited to major marinas than to gunkholing.
Known Issues and Limitations
The capsize screening value places the Diva 45 outside ocean-race acceptance. This is the one quantified safety limitation in the record.
Verdict
The Diva 45 is a Lindquist-designed light racer with cruiser-scale volume, built in solid fiberglass by Fabola AB. Her ballast-driven stiffness and overrigged fractional sail plan make her quick in light air. However, her motion comfort ratio and capsize screening value point to a coastal and moderate-weather performer rather than a bluewater contender.
Pros
- A 46 percent ballast ratio provides exceptional resistance to heeling
- An SA/D ratio of up to 26.3 makes her faster in light wind than 98 percent of similar boats
- Roomier than 58 percent of comparable designs
- Solid-fiberglass hull with a fin keel and spade rudder
Cons
- Capsize screening value excludes her from ocean races
- Motion comfort ratio is better than only 12 percent of similar designs
- Deep draft limits her to major marinas
