MacWester 27 Information, Review, Specs

Sailing Performance & Handling

The MacWester 27 is not a yacht designed for the racing circuit; its performance characteristics are defined by stability and predictability. With a heavy displacement-to-length ratio and a substantial ballast ratio, the boat is remarkably stiff, standing up well to a blow when lighter coastal cruisers are forced to reef. The signature twin bilge keels allow the boat to take the ground upright, a feature that, while increasing wetted surface area and slightly hindering light-wind performance, provides a secure footprint in tidal harbors.

Handling under power is generally reliable, though like many long-keeled or bilge-keeled boats of this era, prop walk can be pronounced in reverse. Under sail, the MacWester 27 tracks well due to the lateral resistance provided by the twin keels, though it is not known for pointing particularly high into the wind. According to technical documentation maintained by the Macwester Owners Association, the boat’s design emphasizes a "sea-kindly" motion, meaning it tends to heave-to comfortably and rarely slams in a head sea, making it a favorite for single-handed sailors or those cruising with young families.

Interior Comfort & Variations

One of the most surprising aspects of the MacWester 27 is its interior volume, which rivals many modern 30-footers. The high coachroof design—a hallmark of C.S.J. Roy—provides generous headroom throughout the main saloon, often exceeding six feet. The standard layout typically features a V-berth in the forward cabin, a separate heads compartment to port (often with a hanging locker opposite), and a saloon with a dinette that converts into a double berth.

The galley is usually positioned to starboard, equipped with a gimbaled stove and a modest sink. Variations exist depending on the year of manufacture and whether the boat was completed by Macwester Marine or later by Atlanta Marine. The Atlanta 27 variants often showcase more extensive use of wood veneers and updated cabinetry compared to the more utilitarian, gelcoat-heavy finishes of the earlier 1970s models. The "Rowan Crown," a sibling model often confused with the 27, shares some design DNA but utilizes a different deck mold, highlighting Roy’s ability to maximize various configurations from a similar design philosophy.

Known Issues & Buyer’s Checklist

Prospective buyers should approach the MacWester 27 with an awareness of its age and the construction methods of the 1970s. While the hulls are famously "over-built" with thick GRP laminates, several specific areas require scrutiny:

• Keel Attachment: On bilge-keeled models, the stress points where the keels join the hull should be inspected for "smile" cracks or signs of movement, particularly if the boat has frequently dried out on hard or uneven ground.
• Deck Core Integrity: Like many boats of this era, the deck may utilize a balsa or plywood core. Soft spots around stanchion bases or cleat mountings often indicate water ingress and delamination.
• Window Seals: The large salon windows are prone to leaking as the original rubber seals perish. Many owners choose to replace these with modern aluminum-framed or bolt-through acrylic units.
• Engine Access and Age: Many original units were fitted with Watermota or early Bukh diesel engines. While reliable, parts are becoming scarcer. Buyers should check the engine mounts and the condition of the stern gland, which can be difficult to access on this specific hull shape.
• Osmosis: Early MacWester builds were not immune to osmotic blistering. While rarely structural due to the sheer thickness of the hull, it is a common point of negotiation during surveys.

Community & Resources

The MacWester 27 benefits from one of the most active and technically proficient owner groups in the United Kingdom. The Macwester Owners Association serves as the primary repository for original brochures, wiring diagrams, and modification guides. The association provides a vital network for sourcing "extinct" parts and offers a collective wealth of knowledge regarding the nuances of the C.S.J. Roy designs.

The Verdict

The MacWester 27 remains a stalwart of the used boat market, offering an affordable entry point for those seeking a rugged, tidal-capable cruiser. It sacrifices speed for space and stability, making it an ideal "first "big boat" for coastal exploration.

Pros:

• Exceptional interior headroom and volume for a 27-foot vessel.
• Bilge keels allow for low-cost tidal moorings and easy maintenance.
• Robust GRP construction provides a sense of security in heavy weather.
• Strong owner association support and historical documentation.

Cons:

• Lackluster light-wind performance and mediocre windward pointing ability.
• Aesthetic "chunky" styling may not appeal to those seeking sleek lines.
• Likely to require systematic upgrades to plumbing, electrical, and engine systems due to age.