Design and Construction
The Alpa 38's hull is fiberglass, built by Alpa Cantieri in Italy, with a lead fin keel drawing roughly five feet depending on load anchor. At a displacement near 18,000 pounds with 7,620 pounds of lead ballast, her ballast ratio sits at 42 percent, and a length-to-beam ratio of 3.33 across an 11-foot-2-inch beam gives her a comparatively narrow, purposeful hull form. The displacement-length ratio of 397 categorizes her among ultra heavy cruisers, and her motion comfort ratio of 36.6 suggests the sort of easy, settled motion that long-passage sailors value over a lively turn of speed. A capsize screening value of 1.71 and a wetted surface near 333 square feet round out a profile of a boat built to carry load and stand up to weather rather than to win line honors.
Rig and Performance
Her masthead rig carries a reference sail area to displacement ratio of 14.0, rising to 16.6 with a 135 percent genoa, and she carries more rig than 46 percent of similar sailboats anchor. The standing and running rigging dimensions are generous for a 38-footer: halyards for the mainsail, genoa, and spinnaker each run just over 101 feet at a half-inch diameter, while sheet lengths reach 93 feet for the mainsheet and 37 feet for the genoa, all sized for secure loads rather than minimal weight. Calculated maximum speed is about 6.3 knots against a theoretical displacement-hull speed of 7.0 knots, and an immersion rate of roughly 1,063 pounds per inch means she sits heavily and changes trim slowly with added gear. These are the numbers of a boat that favors stability and carrying capacity over raw acceleration.
Accommodations and Layout
At just over 37 feet overall with a 27-foot-3-inch waterline and an 11-foot-2-inch beam, the Alpa 38 provides a measured platform whose volume is governed by her heavy cruiser displacement rather than by a stretched contemporary plan. Buyers interested in layout should inspect individual boats.
The Verdict
The Alpa 38 is a Sparkman & Stephens heavy-displacement cruiser built by Alpa Cantieri in fiberglass with a lead fin keel and a masthead rig sized generously for her length. Her numbers describe a stable, comfortable offshore boat rather than a swift racer.
Pros
- Heavy-displacement hull (DL-ratio 397) with 42 percent ballast ratio for offshore stability
- Generous masthead rig with more sail area than 46 percent of similar boats
- Lead fin keel drawing about five feet, practical for most marinas
- Comfort-oriented motion profile (Motion Comfort Ratio 36.6)
Cons
- Modest calculated top speed (6.3 knots) against a 7.0-knot theoretical hull speed
- Production span and total hull count not stated
