Sailboat specifications and datasheets

Océanis 281 shoal draft

The Océanis 281, here in "shoal draft" version, is a 27’5” monohull sailboat designed by Jean Marie Finot and Pascal Conq. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1994 and 2001 with 331 hulls completed.

The Océanis 281 belongs to the Océanis range.

Bénéteau Océanis 281 Bénéteau Océanis 281 sailplanBénéteau Océanis 281 layoutBénéteau Océanis 281 sailingBénéteau Océanis 281 accommodations
Océanis 281's   Main Features
Model Océanis 281
Version Shoal draft
Type of hull Monohull
Designer Jean Marie Finot
Pascal Conq
Range Océanis
Construction Hull:
monolithic fiberglass / polyester
sandwich fiberglass / polyester
First built hull 1994
Last built hull 2001
Number of hulls built 331
Appendages Keel :
Fin with bulb
Helm 1 tiller
Rudder 1 spade rudder
Unsinkable No
Trailerable No
EC certification B
Standard public price ex. VAT (indicative only) N/A
Océanis 281's   Main dimensions
Length overall 28’ 6”
Hull length 27’ 5”
Waterline length 24’ 2”
Beam (width) 9’ 7”
Draft 3’ 10”
Mast height from DWL 38’ 6”
Light displacement 6614 lbs
Ballast weight 1742 lbs
Ballast type Cast iron
French customs tonnage 7.58 Tx
Océanis 281's   Rig and sails
Upwind sail area 415 sq.ft
Mainsail area 183 sq.ft
Genoa area 233 sq.ft
Rigging type Sloop Marconi masthead
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire continuous
Number of levels of spreaders 1
Spreaders angle 15 °
IiFore triangle height (from mast foot to fore stay attachment) 33’ 4”
JiFore triangle base (from mast foot to bottom of forestay) 10’
PiMainsail hoist measurement (from tack to head) 29’ 6”
EiMainsail foot measurement (from tack to clew) 11’ 4”
Océanis 281's   Performances
HN (French rating) 13.0
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.
26 %
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.
6.59 knots
Océanis 281's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 24 HP
Fuel type Diesel
Fuel tank capacity 7.9 gal
Océanis 281's   Accommodation
Cabin(s) 1
Berth(s) 6
Head(s) 1
Fresh water tank capacity 50.2 gal
Maximum headroom 6’ 4”
Galley headroom 5’ 11”
Head headroom 5’ 11”
Océanis 281's   Saloon
Maximum headroom 5’ 11”
Océanis 281's   Fore cabin
Berth length 7’
Berth width 4’ 10”
Océanis 281's   Aft cabin
Maximum headroom 5’ 8”
Berth length 6’ 4”
Berth width 6’ 2”

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