MG 335 Information, Review, Specs

Sailing Performance & Handling

The MG 335 is widely regarded as a "sailor’s boat," benefitting from Tony Castro’s expertise in racing yacht geometry. With a Displacement/Length ratio typically hovering in the moderate-light category and a generous sail area, the 335 is noted for its ability to ghost along in light airs while remaining remarkably stiff when the breeze freshens. According to editorial assessments by Yachting Monthly, the yacht exhibits a well-balanced helm and tracks accurately, a testament to its deep traction fin keel and high-aspect spade rudder.

While the standard configuration featured a deep fin keel for optimal upwind performance, Northshore also offered a "wing keel" variant. This was a nod to their shallow-draft heritage, allowing the boat to navigate thinner waters without the mechanical complexity of a lifting keel. Owners often report that the 335 feels more substantial than its French contemporaries of the same era, providing a sense of security in a seaway that stems from Northshore's heavy-duty layup and internal stiffening. The fractional rig offers plenty of tuning options for the racing-inclined, yet the boat remains easily handled by a couple thanks to a logical deck layout and well-placed primary winches.

Interior Comfort & Variations

Inside, the MG 335 deviates from the utilitarian aesthetic of many 1980s racers, offering a warm, traditional cruising environment finished in rich hardwoods. The layout is a classic "two-cabin" arrangement that remains the gold standard for boats of this size. The aft cabin is surprisingly spacious, featuring a large double berth that extends under the cockpit sole, while the forward V-berth provides a private retreat for guests or children.

The saloon is characterized by its ergonomic L-shaped galley to port and a proper, forward-facing navigation station to starboard—a feature often sacrificed in modern designs of similar length. The joinery is of a higher standard than many mass-produced yachts of the period, reflecting the craftsmanship of the Northshore yard. Headroom is generous, often cited as approximately 6'2", which contributes to an open, airy feel despite the boat’s sleek exterior profile. When the MG 335 transitioned into the MG 346, the interior remained largely identical, though the later models often featured updated upholstery and minor refinements in the head compartment and storage lockers.

Known Issues & Buyer’s Checklist

Prospective buyers should focus their inspections on a few specific areas common to Northshore builds of this vintage. First, the sail-drive diaphragm: most MG 335s were powered by Yanmar or Volvo Penta engines with sail-drive units. These rubber seals have a recommended replacement interval of seven years; if the service history is unclear, this should be a priority.

Second, the deck-to-hull joint and stanchion bases should be inspected for moisture ingress. While Northshore used high-quality resins, the hardware on 30-year-old boats can suffer from "bedding fatigue," leading to minor leaks that can damage the interior woodwork if left unchecked. Third, inspect the rudder bearings; like many performance-oriented boats with spade rudders, the MG 335 can develop "play" in the helm over time, which may require the replacement of the bushings to restore the yacht's signature fingertip control. Finally, check the condition of the original "trak-mark" or non-slip deck surfaces, as these can wear down or become unstuck after decades of UV exposure.

Community & Resources

The MG 335 benefits from a dedicated following within the Northshore Yachts community. The most prominent resource for technical data and historical documentation is the Northshore Owners Association, which covers the MG, Southerly, Vancouver, and Fisher brands. This association provides a repository of original brochures and a network of owners who share specific maintenance solutions for the Tony Castro-designed hulls.

The Verdict

The MG 335 remains one of the most balanced second-hand purchases for sailors who refuse to choose between weekend racing trophies and comfortable family cruising. It successfully bridges the gap between the lightweight agility of Mediterranean designs and the rugged durability of British boatbuilding.

Pros:

• Exceptional Performance: A genuine dual-purpose yacht that excels in a variety of wind conditions.
• Build Quality: Superior joinery and hull stiffness compared to period competitors.
• Timeless Layout: A highly functional interior that works as well today as it did in 1987.
• Pedigree: Designed by Tony Castro and built by one of the UK’s most respected yards.

Cons:

• Age-Related Maintenance: Buyers must be prepared to update standing rigging and sail-drive seals.
• Cockpit Space: The cockpit is optimized for sailing efficiency rather than "sundowner" lounging, making it feel slightly snugger than modern wide-transom designs.
• Availability: These boats are highly prized and tend to sell quickly when they hit the brokerage market.