|Oyster 575's Main Features|
|Version||Keel and centerboard|
|Type of hull||Monohull|
|Category||Offshore deck saloon cruising sailboat|
|Construction||GRP (glass reinforced polyester)|
|First built hull||2010|
|Last built hull||2017|
Centerboard in the keel
|Rudder||2 spade rudders|
|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 when appendages up||5’ 5”|
|Mast height from DWL||82’|
|Light displacement||60076 lbs|
|Ballast weight||17857 lbs|
|Ballast type||Cast iron interior ballast with steel centerboard|
|Oyster 575's Rig and sails|
|Upwind sail area||2097 sq.ft|
|Rigging type||Sloop Marconi masthead|
|Mast position||Deck stepped mast|
|Spars||Mast and boom in Aluminum|
|Number of levels of spreaders||3|
|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.
|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.
|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.
|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.
|Oyster 575's Auxiliary engine|
|Engine type||Inboard engine|
|Fuel tank capacity||343.4 gal|
|Oyster 575's Accommodation|
|Cabin(s) (min/max)||3 / 4|
|Berth(s) (min/max)||6 / 10|
|Fresh water tank capacity||251 gal|