UK Mirage 29 Information, Review, Specs

Sailing Performance & Handling

The Mirage 29 is a moderate-displacement cruiser that strikes a balance between the "bombproof" stability of older Snapdragons and the nimbleness of contemporary racing-cruisers. It was offered with both fin and twin (bilge) keel configurations. The twin-keel version remains particularly popular in the UK for its ability to dry out in tidal harbors, though it naturally sacrifices a few degrees of pointing ability compared to the fin-keel variant.

Under sail, the boat is known for being stiff and predictable, a trait often attributed to its generous ballast ratio. The hull features a relatively high freeboard, which keeps the cockpit dry in choppy coastal conditions but can lead to windage issues when maneuvering in tight marinas. While it is not a light-airs flyer, once the breeze exceeds 10 knots, the Mirage 29 finds its stride, tracking well and offering a light touch on the tiller. According to technical archives preserved by the Snapdragon Mirage and Invaders Association, the boat's design emphasizes safety and ease of handling for short-handed crews, making it a staple choice for families transitioning from dayboats to coastal passage-making.

Interior Comfort & Variations

One of the primary selling points of the Mirage 29 was its clever use of internal volume. By utilizing a slightly wider beam carried aft and maximizing the cabin trunk height, David Feltham created an interior that felt significantly larger than many 30-footers of the time. The layout typically features five or six berths: a double V-berth in the forward cabin, a convertible double in the saloon, and a generous quarter berth to starboard behind the navigation station.

The woodworking and joinery are characteristic of the late-era Thames Marine builds—functional and honest, utilizing teak veneers that have generally aged well if kept dry. The "L-shaped" galley is situated to port, providing a secure position for the cook while underway. Unlike the Mirage 28, which had a more traditional, cramped head arrangement, the 29 benefited from a slightly reorganized midships area that improved headroom and accessibility. Sibling models, such as the earlier Mirage 27 and the foundational Mirage 28, share a similar aesthetic, but the 29 is distinguished by its more integrated deck mold and updated portlight styling.

Known Issues & Buyer’s Checklist

Prospective buyers of a Mirage 29 should prioritize a professional survey focusing on the following areas common to Thames Marine fiberglass builds of the late 1970s and early 1980s:

• Osmotic Blistering: Like many yachts from this era of British boatbuilding, the Mirage 29 is known to be susceptible to osmosis. While rarely structural, it often requires a remedial gelcoat strip and epoxy treatment.
• Deck Core Integrity: Check for "soft spots" around the stanchion bases and the mast step. Water ingress into the balsa or foam core through poorly sealed deck hardware can lead to delamination over time.
• Keel-to-Hull Joint: On twin-keel models, the stresses of regular drying out can cause movement in the keel bolts or cracking in the internal stiffening ribs. Inspect the "smile" at the leading edge of the keel-hull join.
• Original Engines: Many units were originally fitted with Volvo Penta or Bukh diesel engines. While reliable, parts for older 2000-series Volvos are becoming increasingly expensive, and many owners have opted for modern Yanmar or Beta Marine replacements.
• Window Leaks: The large acrylic windows are prone to crazing and seal failure, often leading to water damage to the interior teak veneers below.

Community & Resources

The primary hub for technical support and historical data for this model is the Snapdragon Mirage and Invaders Association (SMIA). This association maintains an extensive library of original brochures, technical drawings, and owner-submitted modifications specifically for the Thames Marine range. Because the company is no longer in business, this community-led archive is the most authoritative source for replacement parts specifications and rig dimensions.

The Verdict

The Mirage 29 is a quintessential British cruiser that offers a high level of "boat for the money." It is an ideal vessel for sailors who prioritize structural integrity and shallow-draft versatility over modern racing performance.

Pros

• Exceptional interior volume and headroom for a 29-foot vessel.
• The twin-keel option allows for low-cost tidal moorings and estuary exploration.
• Stiff, safe sailing characteristics suitable for families and novices.
• Strong community support through the SMIA association.

Cons

• Sailing performance is sluggish in light winds compared to modern designs.
• Susceptibility to osmosis and deck core issues requires careful pre-purchase vetting.
• Relatively high windage can make the boat difficult to handle in a crosswind under power.