Detailed sailboat specifications and datasheets since 2015
MetricSI (m)
Imperial & Metricboth
ImperialIMP (ft)

Oyster SJ43 Fractional rigging

Sailboat specifications

The Oyster SJ43 is a 43’5” (13.22m) cruiser-racer sailboat designed by Stephen Jones Yacht Design (United Kingdom). She was built between 1981 and 1985 by Oyster (United Kingdom). The Fractional rigging version features 3/4 rig allowing finer sail trimming options and lower IOR rating.

The Oyster SJ43 is as well listed, on Boat-Specs.com, in Mast head rigging version (see all the versions compared).

Oyster SJ43's main features

Model
Oyster SJ43
Version
Fractional rigging
Hull type
Monohull
Category
Offshore cruiser-racer sailboat
Sailboat builder
Sailboat designer
Sailboat collection
Country
United Kingdom
Construction
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
About 10
First built hull
1981
Last built hull
1985
Appendages
Keel : fin without bulb
Helm
Single helm wheel
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
Standard public price ex. VAT (indicative only)
N/A

Oyster SJ43's main dimensions

Hull length
43’ 5”13.22 m
Waterline length
34’10.36 m
Beam (width)
14’ 1”4.29 m
Draft
7’ 5”2.25 m
Light displacement (MLC)
18453 lb8370 kg
Ballast weight
8311 lb3770 kg
Ballast type
Lead

Oyster SJ43's rig and sails

Upwind sail area
829 ft²77 m²
Rigging type
Sloop Marconi 3/4
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
0 °
Running backstays
2 set(s)
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Oyster SJ43'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.
201 ft²/T18.68 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.
213
Ballast ratio
 iThe Ballast ratio is an indicator of stability; it is obtained by dividing the boat's displacement by the mass of the ballast. Since the stability depends also of the hull shapes and the position of the center of gravity, only the boats with similar ballast arrangements and hull shapes should be compared.

The higher the ballast ratio is, the greater is the stability.
45 %
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.
7.81 knots

Oyster SJ43's auxiliary engine

Engine(s)
1 inboard engine
Fuel type
Diesel

Oyster SJ43's accommodations and layout

Cockpit
Closed aft cockpit
Cabin(s)
2
Berth(s) (min./max.)
6 / 10
Head(s)
2
Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

Similar sailboats that may interest you:


Sailboats
First built hull
Hull length
First 45 Regatta (Bénéteau)
2007
44’ 11”13.68 m
First 45F5 Lead keel (Bénéteau)
1990
45’ 7”13.9 m
Grand Soleil 45 - Frers Standard (Cantiere Del Pardo)
1988
44’ 1”13.44 m
Oyster SJ41 Fractional rigging (Oyster)
1980
39’ 8”12.09 m
Oyster SJ43 Mast head rigging (Oyster)
1981
43’ 5”13.22 m
First 42 S / Deep draft (Bénéteau)
1981
41’ 11”12.77 m
Albin Nimbus 42 Race (Albin Marine)
1981
41’ 4”12.6 m
Bénéteau R/C 42 S / Deep draft (Bénéteau)
1981
41’ 11”12.77 m
Swan 42 Standard (Nautor's Swan)
1980
42’12.8 m
First 435 Deep draft (Bénéteau)
1984
44’13.4 m
First 456 Deep draft (Bénéteau)
1982
45’ 10”13.95 m
Swan 441 Cruising (Nautor's Swan)
1978
44’ 5”13.54 m
Sun Fast 42 Lead keel (Jeanneau)
1996
40’ 10”12.45 m
Sun Fast 41 Lead keel (Jeanneau)
1990
40’ 2”12.25 m
Sun Légende 41 Regatta (Jeanneau)
1985
40’ 2”12.25 m
Boat-Specs.com uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

Read more