Chassiron TM Information, Review, Specs

Sailing Performance & Handling

Under sail, the Chassiron TM is a quintessential heavy-displacement cruiser. Its underwater profile, characterized by a long keel and a protected rudder, provides exceptional tracking, making it an ideal platform for self-steering gear or long periods of hand-steering in a seaway. The boat is most frequently rigged as a ketch, though some cutter-rigged versions exist. The ketch configuration allows for a versatile sail plan, enabling the crew to "reef by the numbers" and maintain balance by utilizing the "jib and jigger" (mainsail furled, headsail and mizzen active) during heavy weather.

While the hull is robust, the TM is not a light-air performer. Its high wetted surface area and significant displacement mean that it requires a stiff breeze to truly come alive. However, once the wind exceeds 15 knots, the TM settles into its stride, offering a comfortable, predictable motion that minimizes crew fatigue. Anecdotal evidence from members of the Chassiron Yacht Club, the primary technical authority for the marque, suggests that while the boat can be sluggish in tacks compared to modern fin-keel designs, its ability to "lie to" and handle punishing head seas is among the best in its size class.

Interior Comfort & Variations

The interior of the Chassiron TM is a masterclass in traditional marine joinery. The Richard shipyard was famous for its "Bois de Chêne" and mahogany finishes, which create a warm, nautical atmosphere that is increasingly rare in contemporary interiors. The layout typically features a deep U-shaped galley to port, a dedicated navigation station to starboard, and a spacious saloon with a central folding table. Because these boats were often semi-customized for their original owners, variations in the forepeak and head arrangements are common.

The TM shares its hull DNA with several siblings, most notably the Chassiron GT (Grand Tourisme) and the Chassiron CF (Croisière Familiale). The TM version is generally distinguished by its deck layout and coachroof profile, which were optimized for offshore work rather than coastal day-sailing. The use of Iroko and Teak is extensive throughout the cabins, contributing to a sense of "old world" luxury. Headroom is generous for a boat of this vintage, typically exceeding 1.90 meters in the main saloon, though the transition into the forward cabin is more constricted.

Known Issues & Buyer’s Checklist

Prospective buyers of a Chassiron TM must approach the vessel with a focus on timber maintenance. While the hull is a thick, solid GRP laminate, the deck and superstructure are where issues frequently arise.

1. Teak Deck Integrity: The most significant "gotcha" for any Chassiron is the teak-over-fiberglass deck. Over decades, the thousands of screws used to fasten the teak can become paths for water ingress into the core. If the deck feels "spongy" or if there are signs of interior overhead leaks, a full deck replacement may be required—a costly and labor-intensive undertaking.
2. Chainplate Corrosion: The chainplates on the TM are robust but can suffer from crevice corrosion where they pass through the deck. Inspection of the glassed-in sections behind the cabinetry is essential.
3. Osmosis: While the Chantiers Richard hulls were heavily built, like all GRP boats from the 1970s, they are susceptible to osmotic blistering. A moisture meter reading of the hull during a haul-out is mandatory.
4. Engine Access: While the engine rooms are generally well-insulated, access for major repairs can be tight depending on the specific interior cabinetry layout chosen by the original owner.

Community & Resources

The Chassiron brand enjoys a devoted following, particularly in Europe. The Chassiron Yacht Club serves as the central repository for technical drawings, historical brochures, and restoration logs. This association is an invaluable resource for owners seeking to source specific parts or verify the original specifications of their Michel Joubert design.

The Verdict

The Chassiron TM is a "sailor’s boat" in the most traditional sense. It is built for those who value the journey as much as the destination and who are willing to trade high-speed performance for safety, comfort, and timeless beauty.

Pros:

• Exceptional Sea-Kindliness: Heavy displacement and a long keel provide a stable, comfortable ride in heavy weather.
• Artisanal Construction: High-quality interior woodwork that far surpasses modern production standards.
• Versatile Rig: The ketch rig offers numerous sail configurations for various wind strengths.

Cons:

• High Maintenance: The extensive use of teak on the exterior requires constant attention and eventual replacement.
• Light Air Performance: Struggles to make headway in light winds without the assistance of the engine.
• Maneuverability: Like most long-keelers, backing up under power can be unpredictable and challenging in tight marinas.