Design and Construction
Boo Marin built the Aphrodite 25 in fiberglass with a solid hull and offered two keel alternatives. One was a lead fin keel; the other was iron. Both draw about 4.9 to 5.2 feet depending on load.
A ballast ratio of 41 percent and a length-to-beam ratio of 2.67 describe a narrow little hull carrying substantial ballast. Her displacement-length ratio of 194 places her among “moderate racers” rather than out-and-out lead-mines. Wetted surface is about 236 square feet, a modest footprint for her size that helps keep her responsive without requiring a large rig to drive her.
Rig and Sail Handling
The Aphrodite 25 carries a fractional sloop rig, with thoroughly documented standing and running dimensions. The main, jib, and spinnaker halyards are each 79.7 feet long and 5/16 inch in diameter.
Sheet lengths vary by sail. The mainsheet is 62.3 feet of 3/8 inch line, while the genoa and jib sheets are 24.9 feet of the same diameter. The spinnaker sheet is 54.9 feet. The 5/16-inch control lines include a 9.5-foot cunningham, a 19-foot kicking strap, and a 19-foot clew outhaul.
Using the ISO 8666 reference sail, the sail-area-to-displacement ratio is 15.4. It rises to 18.0 with a 135 percent genoa—a meaningful increase that indicates the boat was intended to use overlapping headsails to wake her up.
Performance Profile
The theoretical hull speed for a displacement hull of this length is 6.2 knots. Under the Volvo Penta MD5 engine, however, the calculated maximum is only about 4.2 knots, making the engine strictly auxiliary.
The Motion Comfort Ratio falls between 13.7 and 16.7. The capsize screening value is 2.21, a figure that would exclude the Aphrodite 25 from ocean racing under the standard rule. Her Relative Speed Performance index is 79. An immersion rate of about 705 pounds per inch means crew and gear will settle her noticeably for a boat of this size.
Known Issues
Boats with the iron fin keel carry the familiar caveat of ferrous ballast: over a decades-long service life, the keel needs vigilance against corrosion at the hull joint.
Verdict
The Aphrodite 25 is a tidy, limited-production Scandinavian design for sailors who want a light, easily driven 25-footer with documented rig dimensions and a clear performance envelope. By the numbers, she isn’t an offshore boat. As a coastal cruiser-racer, however, her fractional rig and choice of keel metals make for a coherent, well-defined package.
Pros
- Fractional sloop rig with fully documented line sizes and lengths
- Choice of lead or iron fin keel, both with shoal-enough draft for most marinas
- Moderate-racer displacement profile with a 41 percent ballast ratio
Cons
- Capsize screening value of 2.21 excludes her from ocean racing
- Maximum calculated speed of only about 4.2 knots under the Volvo Penta MD5 engine
