The Beneteau Sense 51 is a refined evolution of the original Sense 50, a design that famously challenged traditional monohull layouts by removing aft cabins and pushing all accommodations forward. This "monomaran" concept, as it was often called, was intended to bridge the gap between the living comfort of a catamaran and the sailing dynamics of a monohull. Launched as part of a 2016–2017 refresh of the entire Sense line, the 51 features a Berret-Racoupeau hull characterized by a nearly 16-foot beam that is carried almost entirely to the transom. The most significant structural update from its predecessor is the addition of a hydraulically operated, drop-down transom that completely encloses the cockpit while underway—addressing safety concerns for pets and children—while doubling as a chef’s platform for the newly integrated outdoor galley concealed within the helm seats.
Beneteau Sense 51 Information, Review, Specs
- Make
- Beneteau
- Model
- Sense 51
- Builder
- Beneteau
- Designer
- Berret Racoupeau Yacht Design
- Number Built
- Production Year(s)
- 2016 - ??
Sailing Performance & Handling
The Sense 51 is engineered for stability and ease of handling, rather than raw racing speed, though its technical ratios suggest a more spirited performance than its Oceanis cousins. With a lightship displacement of approximately 34,195 lbs and a total sail area exceeding 1,300 square feet, the boat maintains a respectable sail area-to-displacement ratio (SA/Disp) near 23, placing it firmly in the category of a performance-oriented cruiser. Test reports from Barche Magazine indicate that in 11-knot winds, the yacht can comfortably maintain 7.5 knots at a 60-degree apparent wind angle.
The hull utilizes a hard chine that runs nearly the full length of the boat, designed to lock the vessel at a heel angle of 15 to 20 degrees, which significantly reduces the "sailing on your ear" sensation common in narrower designs. This stability is further enhanced by dual rudders, which provide exceptional grip and prevent the boat from rounding up even when pressed hard. However, it should be noted that the helm can feel slightly stiff in lighter air, particularly when equipped with the popular in-mast furling option, which sacrifices roughly 10 square meters of sail area compared to the classic full-batten rig.
Interior Comfort & Variations
The interior, penned by Nauta Design, is the defining feature of the Sense 51. By eliminating the standard "cave-like" aft cabins, the designers created a companionway that consists of only three shallow steps at a 45-degree angle—a feature often praised for its ease of access. The main salon is remarkably bright, utilizing large hull ports and nearly 360-degree visibility that creates a seamless connection to the cockpit.
The primary layout configurations include a standard two-cabin, two-head arrangement, with a third room that serves either as a guest cabin with over/under bunks or as a private office. The owner’s suite is located in the forepeak, providing an island berth and a private head with a separate shower stall. In the 51-foot variant, Beneteau introduced richer interior finishes, specifically a matte walnut Alpi wood, which replaced the lighter fruit-tree tones of the previous 50-foot model. A unique "service hatch" porthole also opens between the galley and the cockpit, allowing for easy pass-through of meals and drinks, further emphasizing the boat’s role as a platform for social cruising.
Known Issues & Buyer’s Checklist
Prospective buyers should focus on the technical systems that differentiate the Sense 51 from more traditional models:
- Transom Mechanism: The hydraulic drop-down transom and swim platform are high-use mechanical components. Check for smooth operation and signs of hydraulic fluid leaks or corrosion in the hinges.
- Deck and Teak Condition: Many Sense 51 models were delivered with extensive teak decking. Inspect the caulking and thickness, as early wear can lead to significant maintenance costs.
- Propulsion Systems: While many units feature the standard 80 HP Yanmar with a saildrive, some were equipped with Beneteau’s "Dock & Go" rotating saildrive system. This system is complex and relies on integrated software; ensure a sea trial includes rigorous testing of the joystick maneuvering to verify responsiveness.
- Window Seals: Given the large amount of fixed glass in the coachroof, inspect the seals for any signs of UV degradation or interior water spotting, as re-bedding these large panels can be a specialized and expensive task.
Community & Resources
Owners of the Sense 51 often congregate within broader Beneteau networks, such as the Beneteau Yacht Club, which offers technical documentation and community support. The model also benefits from a dedicated following within the "Sense Owners" groups found on social media platforms, where sailors share modifications specifically for the unique cockpit layout and the hard-top "SmarTop" bimini.
The Verdict
The Beneteau Sense 51 is a masterclass in compromise for the modern cruiser who prioritizes living space and social connectivity over traditional offshore aesthetics. It successfully mimics the "on-deck living" experience of a catamaran while retaining the monohull’s ability to find a slip in crowded Mediterranean marinas.
Pros:
- Exceptional cockpit-to-salon flow with only three companionway steps.
- High stability under sail thanks to the wide hull and hard chines.
- Innovative outdoor galley and enclosed transom for safety and entertainment.
- Superior natural light and ventilation in the forward cabins.
Cons:
- The absence of aft cabins reduces the total berth count compared to traditional 50-footers.
- High reliance on electrical systems (winches, transom, SmarTop) necessitates robust battery management.
- In-mast furling can significantly hamper light-air performance.
Measurements
Construction & Hull
- Construction Material
- Fiberglass (Balsa Core)
- Hull Type
- Monohull Sailboat
- Keel Type
- Bulb
- Rudder
- 2x —
- Ballast
- 8741 lbs (Iron)
- Displacement
- 34204 lbs
- Water Capacity
- 150 gal
- Fuel Capacity
- 110 gal
Dimensions
- Length Overall (LOA)
- 51.05 ft
- Waterline Length (LWL)
- 46.1 ft
- Beam
- 15.94 ft
- Draft
- 7.38 ft
- Max Headroom
- 6.5 ft
- Air Draft
- 75.7 ft
Rig & Sails
- Rig Type
- Masthead Sloop
- P (Main Luff)
- 61.35 ft
- E (Main Foot)
- 19.52 ft
- I (Foretriangle Height)
- 65.62 ft
- J (Foretriangle Base)
- 20.18 ft
- Forestay Length (est)
- 68.65 ft
- Sail Area
- 1280 sqft
Calculations
- Sail Area / Displacement (SA/D) Ratio
- 19.43
- Ballast / Displacement Ratio
- 25.56
- Displacement / Length Ratio (D/L) Ratio
- 155.86
- Comfort Ratio
- 27.82
- Capsize Screening Formula
- 1.96
- Hull Speed
- 9.1 kn