Beneteau Blue 41 — Information, Review, Specs

1987·Beneteau
Hull type
Catamaran · twin
Rig
Fractional Sloop
LOA
40.5' · 12.34 m
Displ.
15,000 lbs · 6,804 kg
First year
1987

The Beneteau Blue 41, often identified in historical records and European markets as the Blue II, represents a pivotal and experimental chapter in the history of the Vendéebased shipbuilder. Launched in the mid1980s, this model was Beneteau’s primary foray into the cruising catamaran market long before the establishment of the nowubiquitous Lagoon brand. Designed by the renowned naval architect Philippe Briand, the Blue 41 was a bold departure from the monohull traditions of the era, aimed at providing a highperformance alternative to the heavy, sluggish multihulls that dominated the early recreational market. Unlike modern cruising catamarans that prioritize maximum interior volume, the Blue 41 was built with a sleek profile and a focus on hydrodynamic efficiency, reflecting Briand’s background in racing yacht design.

Measurements

Dimensions 01

LOA
40.5 ft
LWL
38.25 ft
Beam
23.17 ft
Draft
3.75 ft
Max headroom
-
Air draft
-

Construction & hull 02

Construction
Fiberglass
Hull type
Catamaran
Keel type
Twin
Ballast
-
Displacement
15000 lbs
Water
-
Fuel
-

Rig diagram 03

Length overallLOALength at waterlineLWLMax draft below waterlinedraftFreeboard — deck above waterlineFBForetriangle heightIForetriangle baseJMainsail luffPMainsail footEhover or tap a dimension

Rig & sails 04

Rig type
Fractional Sloop
P · main luff
-
E · main foot
-
I · fore ht.
-
J · fore base
-
Forestay (est)
-
Sail area
1011 sqft

Calculations 05

SA/D ratio
26.59
Ballast/Disp.
D/L ratio
119.66
Comfort ratio
9.07
Capsize screening
3.76
Hull speed
8.29 kn

Provenance 06

Designer
Builder
Beneteau
Built
1987 –
Hulls
Active listings
0

Sailing Performance & Handling

The sailing characteristics of the Blue 41 differ significantly from the contemporary "condo-marans" found in charter fleets today. This vessel was equipped with retractable daggerboards rather than fixed mini-keels, a feature that drastically improves upwind performance and reduces drag when sailing off the wind. According to design archives from Philippe Briand, the emphasis was on a balanced sail plan and a lightweight hull form to ensure the boat remained responsive in light air.

With the daggerboards down, the Blue 41 is capable of pointing much higher than most cruising multihulls of its vintage, approaching the windward performance of a well-found monohull. However, the trade-off is a more active handling requirement; the sailor must be diligent in managing the boards to prevent leeway or to avoid tripping over them in heavy beam seas. Owners often report that the boat "feels" more like a performance cruiser, with a sensitive helm that provides more feedback than the hydraulic systems found on later, larger catamarans. The low bridge deck clearance—a signature of its era—contributes to a lower center of gravity but can lead to occasional "slamming" in choppy, head-sea conditions.

Interior Comfort & Variations

The interior of the Blue 41 reflects the "galley-down" philosophy prevalent in 1980s catamaran design. By placing the galley and heads within the hulls, the bridge deck salon is reserved entirely for lounging and navigation, creating a social space that feels expansive despite the boat’s relatively narrow hulls. The standard configuration typically features four double cabins—two in each hull—making it a popular choice for early offshore charter operations.

Materials used in the interior are classic Beneteau of the period: extensive use of molded fiberglass liners accented with teak or mahogany veneers. While the cabins are somewhat narrower than those found on modern Lagoons, they offer better ventilation and privacy. There are few known variations of the hull itself, though custom interior modifications by owners over the decades are common. The "Blue II" designation is the most frequent sibling reference, with the two names often used interchangeably depending on the original delivery market.

Known Issues & Buyer’s Checklist

Prospective buyers of a Beneteau Blue 41 should approach the survey with a focus on the structural peculiarities of early fiberglass catamarans.

  • Daggerboard Trunks: The trunks are a primary point of concern. Inspect the fiberglass around the trunk exits for stress cracks or water ingress, as the constant lateral pressure of the daggerboards can fatigue the laminate over forty years.
  • Bridge Deck Slamming and Stress: Check the "nacelle" or the underside of the bridge deck for signs of delamination or spider-web cracking. Early designs had lower clearance, and repeated slamming in heavy seas can cause structural fatigue.
  • Rigging Loads: Because catamarans do not heel to dissipate wind gusts, the standing rigging and chainplates take significant loads. Given the age of these vessels, a full replacement of the standing rigging is almost certainly required if not documented within the last decade.
  • Osmosis: Like many Beneteau models from the 1980s, the hulls may be prone to osmotic blistering. A moisture meter test during a haul-out is essential.
  • Weight Management: These boats were designed to be light. Previous owners may have added heavy gear (generators, large dinghy davits, extra batteries) that can significantly degrade the original performance-oriented handling.

Community & Resources

While there is no dedicated "Blue 41 Association," owners are typically welcomed within the broader Beneteau community. Technical drawings and historical specifications are often maintained by the Beneteau Group in their heritage archives. Additionally, because Philippe Briand remains an active and prominent designer, his studio archives serve as a primary resource for technical inquiries regarding the hull's design parameters.

The Verdict

The Beneteau Blue 41 is a specialist’s catamaran, appealing to those who value sailing sensations and windward ability over the apartment-like accommodations of modern multihulls.

Pros:

  • Superior upwind performance thanks to retractable daggerboards.
  • Slim, efficient hulls designed by Philippe Briand.
  • Lower purchase price compared to modern used catamarans.
  • Sleek, timeless aesthetic that avoids the "boxy" look of modern cruisers.

Cons:

  • Low bridge deck clearance can lead to uncomfortable slamming in certain sea states.
  • Interior volume and "galley-down" layout feel cramped compared to modern standards.
  • Maintenance-heavy daggerboard systems require more attention than fixed keels.
  • Niche model status makes sourcing model-specific replacement parts difficult.

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