O'Day 28 (323-440) Information, Review, Specs

Sailing Performance & Handling

The design pedigree of C. Raymond Hunt Associates is evident in the O’Day 28’s hull geometry. Unlike many of its contemporaries that featured flat bottoms and high-aspect fins, the O’Day 28 utilizes a more traditional, slightly deeper V-entry that transitions into a clean run aft. This results in a boat that tracks exceptionally well and resists the rhythmic "hunting" often found in lighter fin-keel designs when sailing downwind.

With a Sail Area to Displacement (SA/Disp) ratio of approximately 16.5, the boat is conservatively rigged. While it may require a larger 150% genoa to maintain momentum in light air (under 8 knots), it finds its stride in the 12–18 knot range. Owners frequently report that the boat remains remarkably stiff, a trait attributed to its nearly 35% ballast-to-displacement ratio. The specific hull series from 323 to 440 benefited from refined rudder bushings, which addressed some of the "play" noted in the very early 1978 and 1979 models. Under power, most units in this range were equipped with the Universal 12hp or 15hp diesel engines, which provide adequate thrust for coastal tides, though the boat's high freeboard can make it susceptible to windage during low-speed docking maneuvers.

Interior Comfort & Variations

The interior of the O’Day 28 was remarkably advanced for its time, maximizing the 10' 3" beam to create a sense of volume usually reserved for 30-footers. The layout is a classic "main cabin" configuration: a forward V-berth with an insert, followed by a full-beam head compartment that provides a necessary privacy buffer from the salon. In the hulls numbered 323–440, the joinery often transitioned toward more extensive use of teak veneers and molded fiberglass liners that were easier to maintain than the heavily carpeted interiors of earlier hull series.

The salon features a settee to port and a wrap-around L-shaped dinette to starboard. A key variation found in this production range is the refinement of the galley area; the sink and icebox are positioned near the companionway for optimal ventilation. Headroom is a notable highlight, measuring approximately 6' 1", which remains a significant selling point for taller sailors. While the O’Day 28 did not have a "sibling" hull with a radically different interior (like a four-cabin version), its design logic was directly scaled up for the O’Day 30 and scaled down for the O’Day 25, creating a cohesive aesthetic across the Hunt-designed fleet.

Known Issues & Buyer’s Checklist

Prospective buyers of the O’Day 28 should prioritize a technical inspection of the following areas, synthesized from decades of owner reports and surveyor findings:

• Deck Core Integrity: Like many boats of this era, O’Day utilized a balsa-core deck. Common "soft spots" are frequently found around the chainplates and the mast step. If water has penetrated the balsa through unbedded hardware, it can lead to localized delamination.
• Chainplate Bulkheads: The chainplates on the 28 are through-bolted to wooden bulkheads. It is critical to inspect the wood for dark staining or "mushiness," which indicates a history of leaks from the deck-to-chainplate seal. Structural failure here can lead to rig loss.
• The "Smile" Joint: Many O’Day 28s exhibit a hairline crack at the leading edge of the keel-to-hull joint, colloquially known as the "O’Day Smile." While often cosmetic, it can indicate loose keel bolts or compression of the fiberglass sump if the crack is deep or moves when the boat is slung.
• Rudder Post and Bushings: Ensure there is no excessive lateral movement in the rudder. The bushings can wear over time, leading to a vibrating helm or "clunking" sound in a seaway.

Community & Resources

The O’Day 28 enjoys one of the most active legacy communities in the sailing world. The O’Day Owners Association serves as a central clearinghouse for technical manuals, original brochures, and replacement parts. Because the hulls were produced in such significant numbers, technical support for the Hunt-designed models is readily available, and many replacement components (such as portlights and hatches) are still supported by secondary manufacturers who acquired the original molds and specifications.

The Verdict

The O’Day 28 is a standout choice for the budget-conscious cruiser who prioritizes predictable handling and interior volume over cutting-edge performance. While it requires a vigilant eye regarding deck maintenance, the Hunt Associates design ensures it remains a capable and respected coastal voyager.

Pros:

• Exceptional interior volume and headroom for a 28-foot vessel.
• Stable, predictable handling characteristics thanks to the Hunt hull design.
• Robust community support and readily available technical documentation.

Cons:

• Vulnerable to balsa core delamination if deck hardware is not re-bedded.
• Conservative sail area can make the boat feel sluggish in light-wind regions.
• Aging inboard engines (Universal) may require significant maintenance or replacement.