Detailed sailboat specifications and datasheets since 2015
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X-55 Shoal draft

Sailboat specifications

The X-55 is a 55’ (16.76m) cruiser-racer sailboat designed by Niels Jeppesen (Denmark). She was built between 2005 and 2012 by X-Yachts (Denmark) with 34 hulls completed. The Shoal draft version features a shorter keel to grant access to shallow areas. She has been awarded "2007 - European Yacht of the Year: L > 14m".

The X-55 is as well listed, on Boat-Specs.com, in Standard and Medium draft version (see all the versions compared).

X-55's main features

Model
X-55
Version
Shoal draft
Hull type
Monohull
Category
Offshore cruiser-racer sailboat
Sailboat builder
Sailboat designer
Country
Denmark
Construction
GRP (glass reinforced polyester):
Sandwich fiberglass polyester with galvanized steel frame
Number of hulls built
34
First built hull
2005
Last built hull
2012
Award(s)
  • 2007: European Yacht of the Year: L > 14m
    Appendages
    Keel : L-shaped keel (with bulb)
    Helm
    Twin helm wheels
    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)
    N/A

    X-55's main dimensions

    Hull length
    55’16.76 m
    Waterline length
    47’ 5”14.46 m
    Beam (width)
    15’4.57 m
    Draft
    8’ 2”2.5 m
    Light displacement (MLC)
    36376 lb16500 kg
    Ballast weight
    13228 lb6000 kg

    X-55's rig and sails

    Upwind sail area
    2003 ft²186.1 m²
    Downwind sail area
    3495 ft²324.7 m²
    Mainsail area
    1008 ft²93.6 m²
    Genoa area
    996 ft²92.5 m²
    Solent area
    797 ft²74 m²
    Symmetric spinnaker area
    2488 ft²231.1 m²
    Rigging type
    Sloop Marconi 9/10
    Mast configuration
    Keel stepped mast
    Rotating spars
    No
    Number of levels of spreaders
    3
    Spreaders angle
    Swept-back
    Spars construction
    Aluminum spars (carbon fiber spars as an option)

    X-55'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.
    309 ft²/T28.71 m²/T
    Downwind 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.
    539 ft²/T50.1 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.
    155
    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.
    9.23 knots

    X-55's auxiliary engine

    Engine(s)
    1 inboard engine
    Fuel type
    Diesel

    X-55's accommodations and layout

    Cockpit
    Open aft cockpit
    Cabin(s) (min./max.)
    3 / 5
    Berth(s) (min./max.)
    5 / 10
    Head(s) (min./max.)
    3 / 4
    Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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