What immediately distinguishes the Bi-Loup 66 from its contemporary competitors—such as the First 210 or the Gib'Sea 222—is its bulbous, high-sided superstructure. Wrighton designed this profile to achieve a remarkable interior headroom of 1.86 meters (approximately 6 feet 1 inch), an unprecedented engineering feat for a hull under 22 feet. Inside, the layout features accommodation for up to four, utilizing a double V-berth forward and two quarter berths. The interior joinery is basic but functional, employing molded fiberglass liners combined with warm wood trimming to stave off condensation and provide a cozy, camper-style ambiance. For the coastal cruiser seeking to navigate tidal flats and dry out on sandy beaches without the mechanical complexity of a swing keel, the Bi-Loup 66 offered a unique blend of standing headroom and effortless grounding.
Sailing Performance & Handling
The sailing dynamics of the Bi-Loup 66 are heavily dictated by its hull form and twin-keel (bilge keel) configuration. With a light displacement of 3,086 pounds and a relatively high Sail Area-to-Displacement (SA/Disp) ratio of 20.31, the boat is surprisingly lively in light to moderate breezes. It catches the wind easily under its fractional sloop rig, utilizing a generous 25-square-meter sail plan split between an 11-square-meter mainsail and a 14-square-meter genoa. This high SA/Disp ratio ensures that despite its substantial cabin windage, the boat does not sluggishly drag through the water.
Its displacement-to-length (Disp/LWL) ratio of 135.76 categorizes it as a light-displacement vessel, allowing it to accelerate quickly and handle kindly in flat water. However, when the wind rises and the seas chop up, its design limitations become apparent. A motion comfort ratio of 13.39 indicates a quick, lively motion in a seaway, meaning crew members will feel the pitch and roll in open water more acutely than they would in heavier, full-keeled designs. Furthermore, the capsize screening formula yields a ratio of 2.24, which reflects its beaminess and places it firmly in the category of coastal and inland cruisers rather than offshore passage makers.
On the wind, the twin keels, drawing only 2.46 feet (0.75 meters), provide decent lift but cannot match the pointing angles of a deep fin-keeled competitor. Heeling forces the leeward bilge keel into a vertical position where it operates efficiently, but tacking angles are wider, and leeway is more pronounced. Off the wind, the twin-keel drag is noticeable, though the boat remains highly stable, tracking straight with a predictable, forgiving feel at the helm.
Market Snapshot & Economics
The Bi-Loup 66 remains a highly sought-after cult classic within European waters, particularly along the Atlantic, Channel, and North Sea coasts of France, Belgium, and the Netherlands. Because of its specialized bilge-keel configuration, it commands a stable niche market and holds its value exceptionally well among tidal cruisers. It is relatively scarce outside of Western Europe, making any well-preserved export model a rare find.
From an economic perspective, the Bi-Loup 66 is highly appealing because it is road-transportable. At just under 2.5 meters in beam (8.17 feet), it fits standard trailering limits without requiring special permits. This allows owners to bypass expensive slip fees by wintering the boat on a trailer or moving it easily between different cruising grounds. Most models are powered by an outboard engine mounted on a transom bracket (typically 6 to 8 horsepower), which keeps drivetrain maintenance and replacement costs to a bare minimum compared to inboard diesel setups.
Known Issues & Triage
Prospective buyers of a vintage Bi-Loup 66 should focus their pre-purchase inspections on areas prone to wear over three decades of use.
- Twin Keel Root Joints: Because bilge-keeled boats are designed to rest on their keels repeatedly, the hull structures surrounding the keel bolts are subject to high grounding stresses. Check the internal grid, floor floors, and backing plates for stress cracks or crazing in the fiberglass gelcoat.
- Deck Core and Portlights: The large cabin house features expansive acrylic windows. Over time, the sealant around these windows degrades, leading to cabin leaks. Ensure the surrounding deck and coachroof structure are solid and do not exhibit flexing, which indicates core rot.
- Hull-to-Deck Joint: Inspect the joint around the sheerline. Heavy use in choppy coastal waters can stress the mechanical fasteners and sealant, leading to minor leaks under the toe rail.
- Rudder Bearings and Play: The transom-hung rudder assembly should be inspected for play in the gudgeons and pintles, as well as checking the rudder blade for water absorption or delamination.
The Verdict
The Bi-Loup 66 is a cleverly engineered, high-volume pocket cruiser that is ideal for coastal explorers and families looking to sail in tidal waters. While it will never win races to windward, its unmatched standing headroom and robust twin-keel stability make it one of the most practical and spacious 22-footers ever built.
Pros
- Exceptional interior headroom (1.86 meters / 6'1") for a 22-foot sailboat.
- Twin bilge keels enable stable, worry-free grounding in tidal zones.
- Easily trailered on a standard two-axle trailer without permits.
- Low maintenance costs due to a simple outboard motor configuration.
- Forgiving and highly stable handling characteristics in coastal waters.
- Compromised windward performance and higher leeway compared to fin-keel boats.
- High cabin profile creates significant aerodynamic windage when maneuvering in tight spaces or docking.
- Quick, lively motion in choppy seas, making it less comfortable for extended open-water voyages.
- Hard to find on the brokerage market outside of Western Europe.




