The Bi-Loup 9 is a distinguished twin-keel cruising sailboat, conceived by designer Richard Wrighton and produced by the French shipyard Wrighton Yachts between 1979 and 1988. With a length overall of nearly 30 feet, the Bi-Loup 9 was crafted to offer a blend of safety, comfort, and exceptional versatility, particularly for family sailing in coastal and tidal waters. Its defining twin-keel hull form, a hallmark of Wrighton's design philosophy, allows the vessel to access shallow anchorages and safely dry out on tidal moorings, a significant advantage for European cruisers.
Bi-Loup 9 Information, Review, Specs
- Make
- Model
- Number Built
- 30
- Production Year(s)
- 1979 - 1988
The model quickly gained a reputation as a robust and accessible cruiser, embodying Wrighton's commitment to practical seafaring.
The Bi-Loup 9 entered production in 1979, designed by Richard Wrighton in the late seventies. Over its nine-year production run until 1988, approximately 30 units of the Bi-Loup 9 were built. Wrighton Yachts, established in 1978, built its brand identity on sturdy, twin-keel sailboats, prioritizing stability, ease of handling, and the unique ability to navigate shallow waters and sit upright on the seabed. Richard Wrighton's design approach for the Bi-Loup 9 included a "slightly more spacy hull design," emphasizing interior volume within its compact footprint. While other models in the Bi-Loup range saw variations and refinements, specific MkI or MkII iterations for the Bi-Loup 9 are not widely reported in available information.
Sailing Performance and Handling
The Bi-Loup 9 is characterized by its design as a reliable cruising vessel rather than an outright racer. With a Sail Area to Displacement (SA/D) ratio of approximately 13.34, the Bi-Loup 9 suggests the characteristics of a heavy displacement cruiser, indicating steady performance, though it may not excel in very light wind conditions. Its Ballast to Displacement (B/D) ratio stands at around 33.9%, a moderate figure that contributes to decent initial stability without making the boat exceptionally stiff in heavy weather. The Displacement to Length (D/L) ratio of approximately 147 suggests a light to moderate displacement for its waterline length of 26.57 feet, which can contribute to a comfortable motion in a seaway.
Owners and reviewers often highlight the practical advantages of the twin-keel design. These vessels are praised for their stability and ease of handling, making them popular in regions with significant tidal ranges, such as Brittany, where their ability to touch the bottom without concern is highly valued., 21] This configuration, while adding wetted surface, fundamentally aligns with the builder's philosophy of safe and comfortable family cruising over ultimate racing speed. The hull speed for the Bi-Loup 9 is calculated at approximately 6.91 knots.
Accommodations and Layout
The interior of the Bi-Loup 9 benefits from the designer's choice of a "slightly more spacy hull design," aiming for enhanced habitability within its nearly 30-foot length. While detailed schematics are not readily available, the design philosophy of Wrighton Yachts typically focused on creating comfortable and safe environments for family cruising. This would imply a functional interior arrangement, likely featuring a V-berth forward, a compact head, a salon area that can convert into additional berths, and a galley suitable for coastal cruising. Given the emphasis on comfort and family sailing, storage solutions and adequate ventilation would have been key considerations in its design. The general finish quality, consistent with Wrighton's reputation for robust construction, would have prioritized durability and practicality.
Owner's Perspectives
Owners of Bi-Loup sailboats, including the Bi-Loup 9, consistently praise the robust construction and long-term durability of these vessels, with many owners retaining their boats for 10 to 15 years. The "habitability" of the Bi-Loup 9 is frequently noted, suggesting a comfortable and well-utilized interior space for a boat of its size. The defining twin-keel feature is a major advantage for owners, allowing them to confidently explore shallow waters and safely dry out in tidal berths, significantly expanding their cruising grounds., 21] The overall sentiment indicates a loyal following that values the Bi-Loup 9 for its practical design, solid build, and suitability for family-oriented cruising.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Solid)
- Hull Type
- Monohull Sailboat
- Keel Type
- Twin
- Rudder
- 1x —
- Ballast
- 2094 lbs
- Displacement
- 6173 lbs
- Water Capacity
- -
- Fuel Capacity
- -
Engine
- Engine Make
- —
- Engine Model
- —
- Engine Type
- —
- Engine HP
- —
- Engine Count
- 1
- Drive Type
- —
- Fuel Type
- —
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- -
- E (Main Foot)
- -
- I (Foretriangle Height)
- -
- J (Foretriangle Base)
- -
- Forestay Length (est)
- -
- Main Sail Area
- -
- Foretriangle Sail Area
- -
- Total Sail Area (Reported)
- 279 sqft
- Total Sail Area (Calc)
- -
Dimensions
- LOA
- 29.53 ft
- LWL
- 26.57 ft
- Beam
- 9.84 ft
- Draft
- 2.95 ft
- Max Headroom
- -
- Air Draft
- -
Calculations
- Hull Speed
- 6.91 kn
- Pounds per Inch Immersion
- 934.19