Mirage 28 S Information, Review, Specs

The vessel is characterized by its moderate-to-heavy displacement and a relatively high ballast ratio, which provides the stability necessary for the challenging conditions of the North Sea and the English Channel. It was offered in both fin keel and twin (bilge) keel configurations, the latter being particularly popular among sailors in tidal regions who required the ability to dry out. According to the technical records held by the Laurent Giles Archive, the design successfully balanced a voluminous interior with a hull form that remained manageable for short-handed crews.

Sailing Performance & Handling

Under sail, the Mirage 28 S is a predictable, stiff, and sea-kindly performer. Its masthead sloop rig is conservatively stayed, emphasizing reliability over raw speed. With a displacement of approximately 7,000 lbs, the boat carries significant momentum, allowing it to punch through a moderate chop where lighter contemporary designs might hobby-horse.

The handling characteristics are defined by a high degree of directional stability. As noted in editorial testing by Yachting Monthly, the boat tracks well and provides a reassuring sense of security in a blow. While it may not be the most agile in light airs, it rewards the sailor once the breeze exceeds 12 knots. The "S" model often features an improved cockpit layout that brings control lines closer to the helmsman, though many owners still prefer the original winching arrangements for their simplicity. The bilge keel version, while slightly less weatherly than the fin keel, is remarkably capable for its type, maintaining a respectable angle of heel before losing grip.

Interior Comfort & Variations

The interior of the Mirage 28 S was widely considered "class-leading" for its era, offering a level of accommodation usually reserved for 30-footers. The "S" version benefitted from the builder's transition to more sophisticated joinery and a revised galley arrangement. The layout typically features a V-berth in the forward cabin, a full-width heads compartment with a hanging locker, and a main saloon with a convertible dinette and a linear galley.

One of the most praised aspects of the interior is the 6-foot-plus headroom, which remains consistent through much of the cabin. The use of teak veneers and molded GRP headliners in the 28 S created a brighter, more durable living space compared to the heavy wood and vinyl linings of the early 70s models. Sibling variations included the original Mirage 28, which featured a slightly more cramped "U-shaped" galley, and the "Silver Shadow" limited edition, which included distinctive grey hull accents and upgraded upholstery. The boat’s beam of 9' 3" is carried well aft, allowing for a generous quarter berth on the port side, effectively providing sleeping accommodations for five to six adults in a pinch.

Known Issues & Buyer’s Checklist

When inspecting a Mirage 28 S, the primary concern is the potential for osmosis. Thames Marine hulls from this period are known for a propensity toward blistering, particularly if they have spent long periods in warmer waters or lacked a proper epoxy barrier coat. Buyers should prioritize a hull survey that includes moisture readings.

• Deck Compression: The mast step on the 28 S is deck-mounted and supported by an internal bulkhead. Over time, the core material in the deck or the base of the support post can compress, leading to "shrouds going slack" or visible deformation in the coachroof.
• Engine Maintenance: Many units were originally fitted with the Volvo Penta MD7A or early Yanmar diesels. While robust, these engines are now approaching the end of their service lives. Prospective buyers should check for evidence of salt-water cooling passage blockages and exhaust elbow corrosion.
• Rudder Bearings: The transom-hung or skeg-mounted rudder (depending on the specific production year) can develop play in the bushings. Checking for "thumping" while at the helm under power is a critical test during a sea trial.
• Window Leaks: The large acrylic side windows are a known source of ingress. If the interior wood trim shows signs of water staining, the windows likely require re-bedding with modern sealants.

Community & Resources

The Mirage 28 S benefits from a dedicated following, primarily centered in the United Kingdom. The most prominent resource for technical support and historical data is the Mirage Owners' Association, which maintains an active presence and provides a repository for original manuals and wiring diagrams. Additionally, the Laurent Giles Archive remains the definitive source for hull lines and original architectural specifications for those seeking to restore a vessel to its factory parameters.

The Verdict

The Mirage 28 S is an archetypal coastal cruiser that offers an excellent balance of internal volume, structural integrity, and forgiving sailing manners. While it lacks the "point-and-shoot" performance of modern fin-keelers, its ability to handle adverse weather and its spacious cabin make it an ideal choice for families or first-time owners looking for a "proper" yacht on a modest budget.

Pros:

• Exceptional interior headroom and living space for a 28-foot hull.
• Robust construction and a reputation for handling heavy weather safely.
• Available in a bilge keel configuration for tidal mooring flexibility.
• Active owner community and strong resale value in the entry-level market.

Cons:

• Known susceptibility to osmosis in older GRP layups.
• Original engines are often aged and may require imminent replacement.
• Lacks the light-wind agility of more modern, lighter designs.