Agrion 6.5 Information, Review, Specs

Sailing Performance & Handling

The Agrion 6.5 is defined by its impressive power-to-weight ratio and its innovative use of water ballast. With a light displacement of approximately 900 kg to 1,300 kg depending on the version, the boat utilizes 400 liters of liquid ballast to provide stability without the permanent weight penalty of a heavy fixed keel. This allows the boat to remain easily trailerable while maintaining a stiff, upright posture once the tanks are filled. According to technical assessments from Bateaux.com, the design’s wide beam (2.50m) and flat hull form allow it to plane easily, often maintaining speeds above 5 knots even in light air.

Handling is described as lively and responsive, typical of Auzépy-Brenneur’s performance hulls. The boat was produced in two primary configurations: a fixed-keel version and a more popular dériveur lesté (weighted centerboard) version. The centerboard variant is particularly prized for its ability to navigate in just 0.30 meters of water with the board up, making it an ideal platform for coastal trekking and "beaching." Owners frequently note that the fully battened mainsail provides excellent drive, though the boat requires early reefing if the water ballasts are not utilized in freshening conditions.

Interior Comfort & Variations

For a vessel measuring only 6.5 meters, the interior volume of the Agrion 6.5 is unexpectedly generous. The cabin layout was designed to maximize utility, offering seating headroom and up to five berths. This includes a double V-berth forward, two settee berths in the main salon, and a "coffin" berth extending aft under the cockpit. In some configurations, owners choose to utilize the aft berth for storage, which significantly increases the vessel's capacity for extended coastal cruising.

The materials used by Soubise Plaisance were standard for the era, focusing on functional GRP surfaces with light wood accents to prevent a claustrophobic feel. While the interior lacks a dedicated galley or enclosed head, its "habitable" status is reinforced by the clever use of space that allows even tall sailors to find comfortable sleeping arrangements. Sibling models are rare, though the shipyard also produced the larger Alcyon 11.50, which shares some of the design language found in the Agrion’s hull.

Known Issues & Buyer’s Checklist

Prospective buyers should focus their inspections on the unique systems that give the Agrion its performance edge.

• Water Ballast Integrity: The 400L water ballast tanks and their associated plumbing (pumps, valves, and vents) are prone to leaking or clogging if not maintained. Inspect the tank seals and ensure the manual or electric pump systems are fully operational.
• Centerboard Mechanism: For the dériveur lesté version, the centerboard trunk and lifting tackle should be checked for wear. Because the boat is often beached, the board itself may show signs of impact damage or grounding-related structural stress.
• Rigging and Spars: The fractional rig carries a significant amount of sail area. Inspect the mast step and chainplates for signs of stress cracking in the deck laminate, especially if the boat has been campaigned in regattas.
• Deck Core: Like many French-built GRP boats from the 1990s, the deck is a sandwich construction. Use a moisture meter or percussion test to check for soft spots around high-load areas like the winch bases and cleats.

Community & Resources

The Agrion 6.5 community is small but highly dedicated, primarily centered in France and Belgium. Technical documentation and owner-led modification guides are occasionally maintained through niche technical wikis and small owner-led digital groups focused on the Georges Auzépy-Brenneur designs.

The Verdict

The Agrion 6.5 remains a "cult classic" for sailors who prioritize speed and modern aesthetics in a trailerable package.

Pros:

• Excellent light-air performance and planing potential.
• Exceptional versatility due to the shallow draft and water ballast system.
• Modern, futuristic profile that has aged better than many of its contemporaries.
• Trailerable without the need for specialized heavy-duty vehicles.

Cons:

• Extremely rare, with only an estimated 17 to 60 units ever produced.
• Water ballast systems add a layer of mechanical complexity and maintenance.
• The interior, while spacious for its size, lacks the amenities found in heavier "pocket cruisers."