Design and Construction
Ortang specified a solid-fiberglass hull. The Alo 28 displaces roughly 6,945 pounds and carries about 3,100 pounds of ballast, giving her a 45 percent ballast ratio. The keel itself is iron rather than lead, a choice that keeps foundry costs down but brings corrosion concerns as the boat ages.
With a length-to-beam ratio of 3.44 and a displacement-length ratio of 307, the Alo 28 falls into the heavy-cruiser category. Her 8-foot-4 beam provides the sectional stability those figures imply.
The fin keel with bulb draws between 4.99 and 5.29 feet, depending on load. That keeps the boat within the draft limits of most marinas while preserving useful righting moment.
Rig, Performance, and Handling
The masthead sloop has a sail-area-to-displacement ratio of 15.3 using the ISO reference sail, rising to 18.2 with a 135 percent genoa. Compared with the broader fleet, the Alo 28 carries more rig than only 46 percent of similar sailboats. That makes her slightly underrigged for her displacement.
Her theoretical hull speed is 6.2 knots. A capsize screening value of 1.75 indicates that, by that formula alone, she could be accepted to participate in offshore evaluation. A Motion Comfort Ratio of 26.5 and Relative Speed Performance of 24 describe a boat intended to settle into a sea rather than sprint across it.
The standing and running rigging specifications suit a small crew. Halyards are 24.1 meters long and 8 mm in diameter. Jib and genoa sheets are 8.8 meters long and 10 mm in diameter, while the mainsheet is 21.9 meters long and 10 mm in diameter.
Known Issues and Maintenance
The iron keel is the structural weak point owners should expect. Prolonged water intrusion at the hull-keel joint can lead to rust jacking and loss of fastener integrity, so any brokerage example deserves a close inspection at that seam.
The boat has about 215 square feet of wetted surface, making a full bottom job a significant annual expense. Her immersion rate is 630 pounds per inch, which shows how quickly additional tankage or gear can reduce freeboard and affect performance.
Refits and Ownership
With fewer than 200 boats built since production began in 1972, the Alo 28 is a small class with a thin spares market. The documented rigging dimensions allow owners to reorder halyards and sheets without measuring them first.
Because the boat combines an iron keel with a solid-fiberglass hull, structural refits center on corrosion control rather than core replacement.
Verdict
The Alo 28 is a modest, honestly built Norwegian cruiser. Her heavy-cruiser proportions and fin keel with bulb make her a predictable sea boat for coastal and modest offshore use. She’s slightly underrigged for her weight, and the iron keel demands respect, but her manageable draft and documented rigging specifications make her a practical small-boat ownership proposition.
Pros
- Heavy-cruiser displacement and a 45 percent ballast ratio contribute to settled motion
- Fin keel with bulb draws less than 5.3 feet when loaded, suiting most marinas
- Fully documented rigging sizes simplify replacement
Cons
- Iron keel invites corrosion at the hull joint
- Slightly underrigged compared with peer sailboats
- Small class, with fewer than 200 built, limits spares availability
