Design and Construction
Holman's lines gave the Sterling 28 a length overall of 8.53 meters and a waterline of 6.71 meters, carried on a beam of 2.59 meters with a long keel and transom-hung rudder hull form described by SailWiki. The hull itself is wood, with an iron ballast keel of 1,814 kilograms set into a 4,990-kilogram displacement — a ballast-to-displacement ratio of 36.35 percent. That iron keel on a timber hull is the defining structural fact of the class, and it shapes everything about how the boat ages. Sources differ on displacement in pounds, so the kilogram figure from SailWiki is used here.
The displacement-to-length ratio of 460.32, echoed by Yachtdatabase's figure of 460, puts her among what one review termed "ultra heavy cruisers" categorization noted by Yachtdatabase. Combined with a comfort ratio near 41 and a capsize screening value of 1.53, the design reads as a stable, sober sea boat rather than a light-air performer. Her theoretical hull speed sits at 6.29 knots, the accepted maximum for a displacement hull of this waterline.
Rig and Handling
The Sterling 28 carries a masthead sloop rig. Period equipment guidance from Yachtdatabase lists jib and genoa sheets of 8.5 meters at 10 mm diameter, a mainsheet of 21.3 meters, and spinnaker sheets of 18.8 meters, all in 3/8-inch line sheet specifications from Yachtdatabase. The long-keel hull with transom-hung rudder favors predictable tracking over quick pivoting, and the 1.45-meter draft — varying to about 1.55 meters under load per Yachtdatabase — lets her settle into shallow marinas that deeper fin-keel boats cannot enter.
Accommodations and Intended Use
The 28-foot overall length and 8.5-foot beam, wrapped around a 1,814-kilogram iron keel and 4,990-kilogram wooden hull, describe a compact cruiser built for shorthanded coastal and modest offshore work rather than charter accommodation. The wetted surface of roughly 20 square meters speaks to the painting and antifouling burden of a full-length keel and wooden bottom.
Known Issues
The Sterling 28's known vulnerabilities flow directly from her construction: a wood hull mated to an iron keel. Iron ballast in a timber boat invites electrolytic decay and keel-bolt corrosion where the two metals meet, and the wooden structure demands continual vigilance against rot and fastening failure. The material pairing itself is the chronic concern for any sixty-year-old example. The long keel and transom rudder, while robust, concentrate loads at the rudderstock and the keel root that a later fin-and-skeg layout would distribute.
The Verdict
The Sterling 28 is a small, scarce, and traditionally built Holman cruiser whose appeal lies in her pedigree and her heavy, reassuring numbers rather than in modern performance. She rewards an owner who values wood maintenance and understands iron-keel timber construction.
Pros
- Long-keel, transom-rudder hull with shallow 1.45 m draft for marina access
- Iron ballast giving a 36% ballast ratio and stable 1.53 capsize screen
- Only 19 built, genuine collector scarcity
Cons
- Wood hull with iron keel invite corrosion and rot at the interface
- Ultra-heavy displacement limits light-air speed and maneuverability
- Minimal support for parts, layouts, or modern refit data
