Beneteau Oceanis 51.1 Information, Review, Specs

Make
Beneteau
Model
Oceanis 51.1
Builder
Beneteau
Designer
Berret Racoupeau/Nauta Design
Number Built
Production Year(s)
2016 - ??

The Beneteau Oceanis 51.1 marked a significant turning point for the French shipyard when it was unveiled in 2017. As the first model of the "seventh generation" of Oceanis cruisers, it introduced a radically different hull form characterized by a pronounced "step" or flare that extends from the bow through the forward third of the boat. This design, penned by Berret-Racoupeau Yacht Design, allows for a massive increase in interior volume without sacrificing the underwater profile or increasing the wetted surface area excessively. According to the official Beneteau Oceanis 51.1 product page, the model was conceived to offer more than 700 possible combinations of rigging, keel, and interior layouts, making it one of the most customizable production yachts in its class.

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Sailing Performance & Handling

The Oceanis 51.1 is built on a hull that prioritizes stability and volume, but its performance varies significantly depending on the chosen mast and keel configuration. The "First Line" version features an extra-tall carbon or aluminum mast, providing 35% more sail area, and a 2.8-meter deep lead-bulb keel. In its standard "Comfort" or "Easy" configurations, the boat is a stately cruiser that relies on its long waterline and twin rudders to maintain tracking.

In an editorial test by Sail Magazine, reviewers noted that the twin rudders provide exceptional grip, even when the boat is pressed hard in a gust, preventing the "round-up" common in wide-beamed single-rudder yachts. The hull’s "tulip" shape (the aforementioned flare) provides a high degree of form stability; as the boat heels, the flare provides a buoyant "stop" that prevents excessive leaning. While the standard in-mast furling mainsail and self-tacking jib setup is designed for short-handed ease, it can feel underpowered in light air (under 8 knots). For sailors prioritizing speed, the First Line package is often cited as a necessity to overcome the displacement of a vessel designed with such substantial interior amenities.

Interior Comfort & Variations

The interior, designed by Nauta Design, leverages the hull's flared sections to create a master cabin that is unprecedented for a 51-foot boat. By widening the hull above the waterline, Beneteau was able to fit a 1.6-meter wide island berth that faces forward, a feature typically reserved for yachts over 60 feet. The use of brushed oak or mahogany finishes and extensive hull windows creates an airy, apartment-like atmosphere.

Layouts are highly modular, ranging from a three-cabin, two-head "owner" version to a five-cabin, three-head charter configuration. A unique "sibling" in this regard is the Oceanis Yacht 54, which utilizes the exact same 51.1 hull mold but features a completely different deck layout—including a "walk-around" cockpit—and a more luxurious interior finish. Another variant often found in the Mediterranean charter market is the 4-cabin version, which splits the forward master into two smaller symmetrical doubles. Across all versions, the U-shaped galley remains a focal point, offering high-capacity refrigeration and the workspace required for long-term provisioning.

The Oceanis 51.1 gained widespread acclaim shortly after its launch, winning the "Best Full-Size Cruiser" award from various international juries. It has become a staple of modern blue-water cruising YouTube channels and technical reviews, often highlighted for its "Ship Control" interface. This integrated digital system allows owners to monitor tanks, lighting, and climate control via a centralized MFD or tablet, a feature that was revolutionary for production sailboats at the time of its release.

Known Issues & Buyer’s Checklist

When inspecting a pre-owned Oceanis 51.1, buyers should focus on the complexity of its onboard systems. Technical discussions among owner groups frequently highlight the following areas:

  • Ship Control System: Early production units (2018–2019) sometimes experience "ghost" sensor readings or interface lag. It is vital to ensure the software firmware has been updated and that the NMEA 2000 backbone is secure.
  • Dock & Go Maintenance: If the vessel is equipped with the "Dock & Go" rotating saildrive/joystick system, the mechanical linkages and software synchronization must be checked by a certified technician, as repairs to this proprietary system can be costly.
  • Chainplate Sealing: Though not a systemic failure, owners have noted that the wide chainplates on the hull side require diligent re-bedding to prevent saltwater ingress into the interior cabinetry.
  • Bow Thruster Performance: Given the high freeboard and windage of the 51.1, the tunnel bow thruster works hard. Check for evidence of overheating or solenoid wear, particularly in charter-exited hulls.

Community & Resources

Owners of the 51.1 often congregate within the Beneteau Yacht Club, an official manufacturer-supported community that provides access to technical manuals and historical build data. For technical troubleshooting, the "Beneteau Oceanis Owners" groups on social platforms serve as the primary hub for sharing modifications and maintenance tips specific to the seventh-generation hull.

The Verdict

The Beneteau Oceanis 51.1 is a masterclass in modern yacht packaging, offering the living space of a much larger vessel without the associated berthing costs. It is an ideal platform for families who value "at-anchor" comfort as much as "under-way" performance.

Pros

  • Unrivaled Volume: The flared hull creates a master suite and salon that feel significantly larger than competitors.
  • Versatility: Three distinct trim levels (Easy, Comfort, First Line) allow the boat to serve as either a relaxed cruiser or a capable club racer.
  • Cockpit Ergonomics: The dual-helm layout and clear thoroughfares make it one of the safest and most social cockpits in its class.

Cons

  • High Windage: The tall topsides and large hull volume make the boat catch the wind easily when maneuvering in tight marinas.
  • System Complexity: Reliance on the "Ship Control" digital switching can be a hurdle for traditionalists or those cruising in remote areas without technician access.
  • Light Air Performance: In standard cruising trim, the boat requires a Code 0 or asymmetric spinnaker to remain lively in light winds.

Measurements

Construction & Hull

Construction Material
Fiberglass
Hull Type
Monohull Sailboat
Keel Type
Bulb
Rudder
1x Spade
Ballast
7485 lbs (Iron)
Displacement
30710 lbs
Water Capacity
116 gal
Fuel Capacity
53 gal

Dimensions

Length Overall (LOA)
52.3 ft
Waterline Length (LWL)
47.64 ft
Beam
15.75 ft
Draft
7.55 ft
Max Headroom
-
Air Draft
75 ft
Hover over a measurement
IJPE FS LOALWL

Rig & Sails

Rig Type
Fractional Sloop
P (Main Luff)
57.68 ft
E (Main Foot)
18.04 ft
I (Foretriangle Height)
60.1 ft
J (Foretriangle Base)
20.64 ft
Forestay Length (est)
63.55 ft
Sail Area
1141 sqft

Calculations

Sail Area / Displacement (SA/D) Ratio
18.61
Ballast / Displacement Ratio
24.37
Displacement / Length Ratio (D/L) Ratio
126.8
Comfort Ratio
24.63
Capsize Screening Formula
2.01
Hull Speed
9.25 kn