Detailed sailboat specifications and datasheets since 2015
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Oyster 745 Standard

Sailboat specifications

The Oyster 745 is a 71’8” (21.86m) cruising sailboat designed by Humphreys Yacht Design (United Kingdom). She is built since 2014 by Oyster (United Kingdom). She has been awarded "2018 - Cruising World - Boat of the Year: Luxury Cruiser".

The Oyster 745 is as well listed, on Boat-Specs.com, in Keel and centerboard version (see all the versions compared).

Oyster 745's main features

Model
Oyster 745
Version
Standard
Hull type
Monohull
Category
Offshore deck saloon cruising sailboat
Sailboat builder
Sailboat designer
Country
United Kingdom
Construction
Hull and deck: GRP (glass reinforced polyester)
First built hull
2014
Last built hull
Still in production
Award(s)
  • 2018: Cruising World - Boat of the Year: Luxury Cruiser
    Appendages
    Keel : L-shaped keel (with bulb)
    Helm
    Twin helm wheels
    Rudder
    Twin spade rudders
    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 
    4 440 000
     (2016)

    Oyster 745's main dimensions

    Overall length
    74’ 7”22.74 m
    Hull length
    71’ 8”21.86 m
    Waterline length
    65’ 10”20.07 m
    Beam (width)
    19’ 5”5.91 m
    Draft
    10’ 2”3.1 m
    Mast height from DWL
    110’ 7”33.7 m
    Light displacement (MLC)
    115963 lb52600 kg

    Oyster 745's rig and sails

    Upwind sail area
    3001 ft²278.8 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

    Oyster 745'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.
    214 ft²/T19.86 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.
    184
    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.
    10.87 knots

    Oyster 745's auxiliary engine

    Engine(s)
    1 inboard engine
    Engine(s) power
    247 HP
    Fuel type
    Diesel
    Fuel tank capacity
    528.3 gal2000 liters

    Oyster 745's accommodations and layout

    Cockpit
    Center cockpit
    Cabin(s) (min./max.)
    3 / 5
    Berth(s) (min./max.)
    6 / 10
    Head(s)
    4
    Freshwater tank capacity
    396.3 gal1500 liters
    Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

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