TECHNICAL SHEET Beneteau OCEANIS 31

OCEANIS 31 à vendre - en venta - for sale 25

OCEANIS 31 - 2009

Beneteau

TECHNICAL SHEET

Main datas

  • Builder : Beneteau
  • Life Raft : Yes
  • Year : 2009
  • Beam : 3,39 m
  • Subtype : Pleasure
  • Architect :
  • Hull : Monohull
  • Material : GRP
  • Length : 9,30 m
  • keel : Shallow keel
  • Draft minimum : 1,30 m

Engines

  • Brand : YANMAR
  • Model : 3YM20
  • Drive :
  • Fuel capacity : 130
  • Power Unit. (CV) : 21
  • Fuel : Diesel
  • Montage : In Board (IB)
  • Engine(s) : 1

Facilities

  • Double Cabin : 2
  • Sailor Cabin : 0
  • Head : 1
  • Berth : 6
  • Helm : No
  • WC : Sailor

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Main Features

  • OCEANIS 31: A family and sporty sailboat, designed by Bénéteau in the 1980s-1990s, renowned for its robustness, interior space, and maneuverability. Ideal for coastal cruising or family weekends, this model embodies the balance between performance and comfort.

    Technical Specifications

    • Overall Length (LOA): 9.40 meters (30 feet 10 inches)
    • Hull Length: 8.90 meters (29 feet 2 inches)
    • Beam: 3.20 meters (10 feet 6 inches)
    • Draft: 1.50 meters (standard) / 1.80 meters (deep keel)
    • Empty Weight: Approximately 4,000 kg
    • Freshwater Capacity: 100 to 150 liters
    • Fuel Capacity: 50 to 70 liters
    • Hull Material: Fiberglass-reinforced polyester (FRP) with foam core for a lightweight and strong structure
    • Deck Material: Composite with balsa or foam core
    • Mast Height: 13.50 meters
    • Sail Plan:
      • Mainsail: 19.5 m²
      • Genoa (150%): 26 m²
      • Staysail: 7.5 m²
      • Storm jib: 3 m²
      • Spinnaker: 45 m²
    • Additional Sails: Optional: heavy genoa (135%) or jib (110%)

    Engine and Propulsion

    • Standard Engine: 1 or 2-cylinder diesel (e.g., Yanmar 2GM20 or Perkins 4-108), power output between 18 and 27 HP.
    • Propeller: 3-blade aluminum or stainless steel (diameter: 40 to 45 cm).
    • Fuel Tank: 50 to 70 liters (depending on model and year).
    • Transmission Type: Propeller shaft with mechanical clutch.

    Interior Layout and Comfort

    • Number of Cabins: 2 or 3 cabins depending on configuration (standard or "family" models).
    • Berths: 4 to 6 people (2 double cabins or 1 double + 2 singles).
    • Forward Berth: Potentially convertible into a chart table.
    • Head (Toilet): Head compartment with washbasin and freshwater tank (8 to 15 liters).
    • Galley (Pantry):
      • Gas or electric 2-burner stove.
      • Sink with manual or electric pump.
      • Refrigerator: Optional (20 to 40 liters, powered by 12V or gas).
    • Chart Table: Removable with storage underneath.
    • Storage: Multiple lockers, bins, and shelves for gear storage.

    Performance and Seaworthiness

    • Hull Type: Fin keel or long keel (depending on version), designed for stability.
    • Water Penetration: Chined hull for good upwind performance.
    • Stability: Excellent stability under sail thanks to a low center of gravity and optimized weight.
    • Points of Sail and Speed:
      • Upwind: 5 to 6 knots (depending on wind and rigging).
      • Reaching: 6 to 7 knots.
      • Downwind: 7 to 8 knots (with spinnaker).
    • Maneuverability: Very good thanks to a well-proportioned keel and balanced rudder.
    • Range: Approximately 4 to 6 hours under power with a full tank.

    Safety Equipment and Common Options

    • Standard Equipment:
      • Tiller or wheel steering (depending on model).
      • Manual winches (sizes 16 to 24 as needed).
      • Adjustable backstay.
      • Stainless steel fittings (hatch frames, handrails, etc.).
      • 12V electrical system with basic dashboard.
    • Popular Options:
      • Instrumentation (compass, speedometer, depth sounder).
      • Solar panel or wind generator for energy autonomy.
      • Autopilot (e.g., Raymarine or Simrad).
      • Bimini top or dodger for comfort while sailing.
      • Drop-down chart table or folding table.
      • Air conditioning or Webasto heater (for "family" versions).
    • Safety:
      • Manual or electric bilge pump.
      • Fire extinguisher.
      • 8 to 12 kg anchor with appropriate chain.
      • Marine VHF radio.

    Strengths and Points of Caution

    ? Strengths:

    • Solid and durable construction thanks to quality materials (FRP and foam core).
    • Generous interior layout for a sailboat of this size.
    • Good seaworthiness and remarkable stability.
    • Versatile model: designed for coastal cruising as well as more sporty sailing.
    • Large user community and readily available spare parts.

    ? Points of Caution:

    • Older model: Some examples may require a complete overhaul of the hull and deck (osmosis, gelcoat refresh).
    • Engine: Original engines may be at the end of their life and may require expensive replacement or overhaul.
    • Sails to check (the mainsail and genoa are often due for replacement after 10-15 years).
    • Electrical equipment: Old wiring should be inspected to avoid corrosion or short-circuit risks.
    • Weight: Some models may be heavier than average, which could impact performance.

    Secondhand Market: Prices and Advice

    The price of an Oceanis 31 on the secondhand market varies depending on the year, general condition, equipment, and renovations carried out:

    • Average Price (1985-1995): Between ,000 and ,000 (approx.).
    • Price for a Recent or Restored Model (2000+): Between ,000 and ,000 (approx.).
    • Peak Production Years: Models built between 1988 and 1992 are often considered the best.

    Advice before purchase:

    • Have the hull inspected for potential osmosis or delamination issues.
    • Check the condition of the interior fittings (moisture, mold, wooden structures if present).
    • Test the engine and transmission (oil level, leaks, hose condition).
    • Inspect the sails (wear on seams, fiber condition).
    • Check navigation certificates and registration documents.

    The Oceanis 31 remains an excellent choice for sailors seeking a reliable, family-friendly, and performance-oriented sailboat at a reasonable price. Its timeless design, robustness, and practical layouts make it suitable for both beginners and experienced sailors. However, special attention should be paid to maintenance and upkeep, particularly due to the age of some models.

    For an optimal experience, prefer a well-maintained and well-equipped model, or budget for necessary renovations.

Price guide, Quotation

To give an idea, in 2026, an OCEANIS 31 Beneteau from 2009 was offered on the market at a price of €50,000.

Limitation of liability : XBOAT assumes no responsibility for the information provided in this technical data sheet, which has been sourced from the internet and has not been verified. This information is non-contractual and does not, in any way, bind XBOAT.

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