Detailed sailboat specifications and datasheets since 2015
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Oyster 545 Shoal draft

Sailboat specifications

The Oyster 545 is a 52’11” (16.12m) cruising sailboat designed by Humphreys Yacht Design (United Kingdom). She was built between 2013 and 2018 by Oyster (United Kingdom). The Shoal draft version features a shorter keel to grant access to shallow areas.

The Oyster 545 has also been marketed as Oyster 54 and she is as well listed, on Boat-Specs.com, in Standard and Keel and centerboard version (see all the versions compared).

Oyster 545's main features

Model
Oyster 545
Version
Shoal draft
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
2013
Last built hull
2018
Appendages
Keel : L-shaped keel (with bulb)
Helm
Single helm wheel
Rudder
Single semi-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 
1 300 000
 (2016)

Oyster 545's main dimensions

Overall length
53’ 11”16.43 m
Hull length
52’ 11”16.12 m
Waterline length
46’ 4”14.1 m
Beam (width)
15’ 7”4.75 m
Draft
6’1.83 m
Mast height from DWL
70’ 6”21.5 m
Light displacement (MLC)
46992 lb21315 kg

Oyster 545's rig and sails

Upwind sail area
1659 ft²154.09 m²
Rigging type
Sloop Marconi masthead
Mast configuration
Keel stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Aluminum spars

Oyster 545'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.
216 ft²/T20.04 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.
215
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.
9.11 knots

Oyster 545's auxiliary engine

Engine(s)
1 inboard engine
Engine(s) power
110 HP
Fuel type
Diesel
Fuel tank capacity
224.5 gal850 liters

Oyster 545's accommodations and layout

Cockpit
Center cockpit
Cabin(s)
3
Berth(s) (min./max.)
6 / 8
Head(s)
2
Freshwater tank capacity
198.1 gal750 liters
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