Shannon 28 Information, Review, Specs

Sailing Performance & Handling

The Shannon 28 is a heavy-displacement cruiser that prioritizes stability and tracking over raw speed. With a displacement of 9,300 pounds and a ballast-to-displacement ratio hovering near 39%, the boat displays a motion comfort level typically reserved for vessels in the 35-foot range. Its full keel with a protected propeller aperture and a substantial skeg-masted rudder ensures that the boat tracks exceptionally well in a seaway, reducing helm fatigue during long passages.

In terms of sail plan, the 28 was most commonly rigged as a cutter, which provides versatile gear shifting as the wind builds. While its sail area-to-displacement ratio (approximately 16.5) suggests it may struggle in light airs under 8 knots, it excels when the whitecaps appear. The boat is known for its ability to carry full sail longer than its lighter competitors, and its relatively narrow beam for its displacement helps it slice through head seas rather than pounding over them. Technical evaluations from Practical Sailor have historically noted that while the boat is not a "greyhound," its predictable handling and "forgiving" nature make it an ideal platform for offshore work where safety and ease of motion are paramount.

Interior Comfort & Variations

For a vessel with a 23-foot waterline, the Shannon 28 offers a surprisingly sophisticated and ergonomic interior. Walter Schulz utilized the 9'6" beam to create a layout that feels secure at sea. The interior is characterized by high-grade joinery, usually in satin-finished teak, and a teak-and-holly cabin sole. The standard layout features a V-berth forward, followed by a head and hanging locker. The main salon typically includes a settee to port and a wrap-around dinette to starboard that can convert into a double berth.

One of the most notable aspects of the interior is the 6'2" headroom, which is rare for a boat of this length. The galley is positioned aft for better ventilation and proximity to the cockpit, featuring a deep sink and a well-insulated icebox. Because Shannon Yachts operates as a semi-custom builder, several interior variations exist; some owners opted for a dedicated navigation station, while others prioritized storage for extended voyaging. While there are no direct "hull siblings" in the form of a stretched powerboat or a multi-cabin variant (due to the size constraints), the Shannon 28’s design philosophy was directly distilled into the later Shannon 32 and the Shoalsailer series, which sought to maintain the 28’s aesthetic while providing a shallower draft.

Known Issues & Buyer’s Checklist

Prospective buyers of a Shannon 28 should focus their inspections on the consequences of the boat’s age and its sophisticated construction materials.

1. Balsa Core Integrity: Like many high-end yachts of its era, the Shannon 28 uses a balsa-cored deck. While robust, any poorly bedded deck hardware over the decades can allow moisture to penetrate the core. A thorough moisture meter test and percussion "tap" test of the deck are essential.
2. Chainplate Access: The chainplates are robust, but they are often buried behind cabinetry. Inspectors should look for evidence of water streaking or "bleeding" on the interior bulkheads where the chainplates pass through the deck, as re-bedding these is a labor-intensive task.
3. Original Engine Condition: Many 28s were originally powered by the Yanmar 2GM or 3GM series or the Westerbeke 21. While these are reliable engines, a boat of this vintage may be approaching a repower or requiring a cooling system overhaul.
4. Fuel and Water Tanks: The Shannon 28 features stainless steel tanks. While high quality, if they were installed in a way that allows bilge water to sit against the bottom of the tank, "pitting" corrosion can occur. Buyers should verify the age and condition of the tank welds.

Community & Resources

Owners of the Shannon 28 benefit from a dedicated and high-signal community. The Shannon Owners Group serves as a central hub for technical advice, original blueprints, and restoration logs. Furthermore, the manufacturer, Shannon Yachts, continues to operate in Bristol, Rhode Island, and is renowned for providing historical support and original production orders for brokerage boats, a level of factory backing rarely seen for a model that went out of production nearly 40 years ago.

The Verdict

The Shannon 28 is a "small giant" in the world of blue-water cruising. It is not an entry-level boat for those seeking maximum interior volume for dockside entertaining, but rather a specialized tool for the sailor who intends to go over the horizon in a vessel that will look after them when the weather turns.

Pros:

• Overbuilt Construction: One of the few 28-footers built to true transoceanic standards.
• Exceptional Headroom: 6'2" clearance is a luxury in this size class.
• Tracking and Stability: A full-keel design that provides a "big boat" feel in heavy seas.
• Factory Support: Rare continued support from the original builder.

Cons:

• Light Air Performance: Requires a significant breeze to overcome its heavy displacement.
• Purchase Price: Commands a premium on the used market compared to mass-produced cruisers.
• Limited Cockpit Space: The cockpit is designed for safety and bracing at sea, which can feel cramped for large groups at anchor.