| Main features | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
Model | Oyster 595 | Oyster 595 |
Version | Fin keel | Keel and centerboard |
Hull type | Monohull | Monohull |
Category | Offshore cruising sailboat | Offshore cruising sailboat |
Sailboat builder | Oyster | Oyster |
Sailboat designer | ||
Country | United Kingdom | United Kingdom |
Construction | Hull and deck: GRP (glass reinforced polyester) | Hull and deck: GRP (glass reinforced polyester) |
First built hull | 2019 | 2019 |
Last built hull | Still in production | Still in production |
Appendages | Keel : L-shaped keel (with bulb) | Centerboard : pivoting centerboard in the keel |
Helm | Twin helm wheels | Twin helm wheels |
Rudder | Twin spade rudders | Twin spade rudders |
Unsinkable | No | No |
Trailerable | No | 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 | A |
| Main dimensions | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
Overall length | 62’ 6”19.05 m | 62’ 6”19.05 m |
Hull length | 59’ 6”18.14 m | 59’ 6”18.14 m |
Waterline length | 55’ 2”16.81 m | 55’ 2”16.81 m |
Beam (width) | 17’ 7”5.36 m | 17’ 7”5.36 m |
Draft | 8’ 10”2.68 m | 13’ 4”4.06 m |
Draft when appendages up | 5’ 11”1.79 m | |
Mast height from DWL | 90’ 6”27.59 m | 90’ 6”27.59 m |
Light displacement (MLC) | 67918 lb30807 kg | 67918 lb30807 kg |
| Rig and sails | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
Upwind sail area | 1938 ft²180 m² | 1938 ft²180 m² |
Rigging type | Sloop Marconi 9/10 | Sloop Marconi 9/10 |
Mast configuration | Keel stepped mast | Keel stepped mast |
Rotating spars | No | No |
Number of levels of spreaders | 2 | 2 |
Spreaders angle | Swept-back | Swept-back |
| Performances | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
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. | 197 ft²/T18.32 m²/T | 197 ft²/T18.32 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 | 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. | 9.95 knots | 9.95 knots |
| Auxiliary engine | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
Engine(s) | 1 inboard engine | 1 inboard engine |
Engine(s) power | 150 HP | 150 HP |
Fuel type | Diesel | Diesel |
Fuel tank capacity | 375.1 gal1420 liters | 375.1 gal1420 liters |
| Accommodations and layout | Oyster 595 Fin keel | Oyster 595 Keel and centerboard |
Cockpit | Center cockpit | Center cockpit |
Cabin(s) (min./max.) | 3 / 5 | 3 / 5 |
Berth(s) (min./max.) | 6 / 9 | 6 / 9 |
Head(s) | 2 | 2 |
Freshwater tank capacity | 301.2 gal1140 liters | 301.2 gal1140 liters |