Aloha 10.4 Information, Review, Specs

Sailing Performance & Handling

The sailing philosophy of the Aloha 10.4 is rooted in Ted Brewer’s "comfort motion" design principles. With a displacement of approximately 11,600 pounds and a moderate Displacement-to-Length (D/L) ratio, the boat exhibits a predictable, stable motion in a seaway that is often missing in lighter, modern fin-keel production boats. The underwater profile features a swept-back fin keel and a large skeg-hung rudder, a configuration that Ted Brewer Yacht Design frequently utilized to balance maneuverability with exceptional tracking ability.

In light air, the 10.4 requires significant sail area to overcome its wetted surface area, but as the breeze freshens to 12–15 knots, the hull finds its stride. Owners and reviewers often note that the boat carries its way well through a chop, thanks to a relatively sharp entry that transitions into a flat run aft. The Sail Area-to-Displacement ratio (SA/Disp) sits in the "cruising" range, meaning it is under-canvassed compared to a dedicated racer but remains stiff and safe when the wind picks up. While it is not a "pointing" machine compared to deep-keel racing yachts, it holds a respectable close-hauled course and excels on a reach.

Interior Comfort & Variations

The interior of the Aloha 10.4 reflects Ouyang Boat Works’ commitment to traditional craftsmanship, characterized by an abundance of solid teak and high-quality joinery that distinguishes it from more utilitarian contemporaries. The layout is a classic offshore arrangement: a forward V-berth with ample storage, a head to port with a hanging locker opposite, and a main salon featuring a U-shaped dinette that can convert into a double berth.

A notable variation in the 10.4 compared to its predecessor, the 34, is often found in the galley and navigation station refinements. The galley is typically situated to starboard, featuring a deep sink and a gimbaled stove, while the dedicated navigation station to port serves as a functional workspace for the cruising navigator. Headroom is generous, often cited at approximately 6'4", making the vessel comfortable for taller sailors. Some late-model 10.4s were fitted with different engine configurations; while the Westerbeke 27 or 30 were standard, some units may be found with Universal diesels. The boat was primarily produced as a sloop, though the design’s stability led some owners to retro-fit inner forestays for a cutter-style heavy-weather setup.

Known Issues & Buyer’s Checklist

Prospective buyers of an Aloha 10.4 should focus their inspection on several age-related technical areas common to Ouyang-built boats of this vintage:

• Deck Delamination: Like many boats of its era, the 10.4 utilizes a balsa-cored deck. Moisture ingress around the chainplates, stanchion bases, and the teak handrails on the coachroof can lead to core rot. A thorough percussion test or moisture meter reading is essential.
• Hull-to-Deck Joint: The joint is a crucial structural area. While generally robust, some owners have reported leaks in heavy weather where the rub rail fasteners penetrate the fiberglass.
• Rudder Post and Skeg: The skeg-hung rudder provides protection, but the bushings and the point where the skeg attaches to the hull should be checked for "play" or structural stress cracks, which can develop after decades of service.
• Original Plumbing and Wiring: Many 10.4s still carry their original gate valves and non-tinned copper wiring. Modernizing the through-hulls to seacocks and upgrading the electrical panel is a common and necessary refit item.

Community & Resources

The legacy of the Aloha 10.4 is maintained by a dedicated group of enthusiasts. The Aloha Owners Association remains the primary technical resource for this model, providing an archive of original brochures, manual scans, and a repository of owner-modified projects ranging from engine swaps to rudder redesigns.

The Verdict

The Aloha 10.4 is a "sailor’s cruiser" that offers a level of build quality and aesthetic warmth rarely found in the sub-$50,000 used market. It is an ideal platform for a couple or small family looking for a safe, predictable coastal cruiser with the "bones" to head further offshore.

Pros:

• Exceptional interior woodwork and high-quality joinery.
• Stable, sea-kindly motion thanks to Ted Brewer’s design.
• Excellent headroom and storage for a 34-foot vessel.
• Predictable tracking and steering due to the skeg-hung rudder.

Cons:

• Moderate light-air performance compared to modern designs.
• Common balsa-core moisture issues in the deck if neglected.
• Requires a larger crew or upgraded winches to handle the genoa in high winds due to the heavy displacement.