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Boréal 47

Sailboat specifications

The Boréal 47 is a 47’8” (14.55m) cruising sailboat designed by Jean-François Delvoye (France). She is built since 2010 by Boréal (France). She has been awarded "2018 - Cruising World - Boat of the Year: Overall Boat of the Year" and "2018 - Cruising World - Boat of the Year: Midsize Cruiser 44 to 47 Feet".

Boréal 47's main features

Model
Boréal 47
Hull type
Monohull
Category
Offshore cruising sailboat
Sailboat builder
Sailboat designer
Country
France
Construction
Hull and deck: aluminum
First built hull
2010
Last built hull
Still in production
Award(s)
  • 2018: Cruising World - Boat of the Year: Overall Boat of the Year
  • 2018: Cruising World - Boat of the Year: Midsize Cruiser 44 to 47 Feet
    Appendages
    Centerboard : pivoting centerboard
    Helm
    Single helm wheel
    Rudder
    Single spade rudder
    Unsinkable
    No
    Trailerable
    No
    EC design category
     iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)

    A: Wind < force 9, Waves < 10m
    B: Wind < force 8, Waves < 8m
    C: Wind < force 6, Waves < 4m
    D: Wind < force 4, Waves < 0,5m
    A
    Standard public price ex. VAT (indicative only)
    About 
    471 000
     (2020)

    Boréal 47's main dimensions

    Hull length
    47’ 8”14.55 m
    Waterline length
    38’ 2”11.63 m
    Beam (width)
    14’ 1”4.3 m
    Waterline beam (width)
    11’ 2”3.4 m
    Draft
    8’ 1”2.48 m
    Draft when appendages up
    3’ 4”1.02 m
    Mast height from DWL
    60’ 6”18.45 m
    Light displacement (MLC)
    23589 lb10700 kg
    Ballast weight
    8378 lb3800 kg
    Ballast type
    Lead

    Boréal 47's rig and sails

    Upwind sail area
    1076 ft²100 m²
    Mainsail area
    484 ft²45 m²
    Genoa area
    592 ft²55 m²
    Staysail area
    237 ft²22 m²
    Rigging type
    Cutter Marconi masthead
    Rotating spars
    No
    Spreaders angle
    No spreader
    Standing rigging
    1x19 strand wire continuous

    Boréal 47's performances

    Upwind sail area to displacement
     iThe ratio sail area to displacement is obtained by dividing the sail area by the boat's displaced volume to the power two-thirds.

    The ratio sail area to displacement can be used to compare the relative sail plan of different sailboats no matter what their size.

    Upwind: under 18 the ratio indicates a cruise oriented sailboat with limited performances especially in light wind, while over 25 it indicates a fast sailboat.
    222 ft²/T20.59 m²/T
    Displacement-length ratio (DLR)
     iThe Displacement Length Ratio (DLR) is a figure that points out the boat's weight compared to its waterline length. The DLR is obtained by dividing the boat's displacement in tons by the cube of one one-hundredth of the waterline length (in feet).
    The DLR can be used to compare the relative mass of different sailboats no matter what their length:

    a DLR less than 180 is indicative of a really light sailboat (race boat made for planning), while a DLR greater than 300 is indicative of a heavy cruising sailboat.
    193
    Ballast ratio
     iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

    The higher the ballast ratio is, the greater is the stability.
    36 %
    Critical hull speed
     iAs a ship moves in the water, it creates standing waves that oppose its movement. This effect increases dramatically the resistance when the boat reaches a speed-length ratio (speed-length ratio is the ratio between the speed in knots and the square root of the waterline length in feet) of about 1.2 (corresponding to a Froude Number of 0.35) . This very sharp rise in resistance, between speed-length ratio of 1.2 to 1.5, is insurmountable for heavy sailboats and so becomes an apparent barrier. This leads to the concept of "hull speed".
    The hull speed is obtained by multiplying the square root of the waterline length (in feet) by 1.34.
    8.28 knots

    Boréal 47's auxiliary engine

    Engine(s)
    1 inboard engine
    Engine(s) power (min./max.)
    55 HP / 75 HP
    Fuel type
    Diesel
    Fuel tank capacity
    158.5 gal600 liters

    Boréal 47's accommodations and layout

    Cockpit
    Closed aft cockpit
    Cabin(s) (min./max.)
    2 / 3
    Berth(s) (min./max.)
    4 / 8
    Head(s)
    2
    Freshwater tank capacity
    200.8 gal760 liters
    Fridge/ice-box capacity
    26.4 gal100 liters
    Boiler capacity
    10.6 gal40 liters
    Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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