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Sailboat specifications and datasheets

Oyster 575 standard

The Oyster 575, here in "standard" version, is a 57’6” monohull sailboat designed by Rob Humphreys. She was built by Oyster (United Kingdom) and made of GRP (glass reinforced polyester). This sailboat was produced between 2010 and 2017.

The Oyster 575 is as well listed, on Boat-Specs.com, in version Keel and centerboard and Shoal draft.

Oyster 575 Oyster 575 sailplanOyster 575 layoutOyster 575 layoutOyster 575 layoutOyster 575 layoutOyster 575 layoutOyster 575 layoutOyster 575 sailingOyster 575 sailingOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodationsOyster 575 accommodations
Oyster 575's   Main Features
Model Oyster 575
Version Standard
Type of hull Monohull
Category Offshore deck saloon cruising sailboat
Shipyard
Designer Rob Humphreys
Construction GRP (glass reinforced polyester)
First built hull 2010
Last built hull 2017
Appendages Keel :
L-shaped keel (with bulb)
Helm 2 wheels
Rudder 1 spade rudder
Cockpit Central cockpit
Unsinkable No
Trailerable No
EC certification A
Standard public price ex. VAT (indicative only) About
1 820 000
(2016)
Oyster 575's   Main dimensions
Length overall 58’ 8”
Hull length 57’ 6”
Waterline length 51’ 7”
Beam (width) 16’ 5”
Draft 8’ 11”
Mast height from DWL 82’
Light displacement 60076 lbs
Ballast weight 17857 lbs
Ballast type Lead
Oyster 575's   Rig and sails
Upwind sail area 2097 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Number of levels of spreaders 3
Spreaders angle Swept-back
Oyster 575's   Performances
Upwind sail area to displacementiThe 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 23 it indicates a fast sailboat.
21.51
Displacement-Length ratio (DLR)iThe Displacement Length ratio is a figure that points out the boat's weight compared to its waterline length. 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.
199
Ballast ratioiThe Ballast ratio is an indicator of the stability; it is obtained by dividing the boat's displacement by the weight of the ballast. Since the stability depends also of the hull shape and the position of the center of gravity, only boats with similar ballast arrangements and hull shape should be considered.
Higher the ballast ratio is, greater is the stability.
30 %
Hull speediAs 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.
9.62 knots
Oyster 575's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 150 HP
Fuel type Diesel
Fuel tank capacity 343.4 gal
Oyster 575's   Accommodation
Cabin(s) (min/max) 3 / 4
Berth(s) (min/max) 6 / 10
Head(s) 2
Fresh water tank capacity 251 gal

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