Sailboat specifications and datasheets

Océanis 350 wing keel

The Océanis 350, here in "wing keel" version, is a 33’1” monohull sailboat designed by Philippe Briand. She was built by Bénéteau (France) and made of monolithic fiberglass / polyester. This sailboat was produced between 1985 and 1992 with 751 hulls completed.

The Océanis 350 belongs to the Océanis range. The Océanis 350 is as well listed, on, in version Deep draft.

Bénéteau Océanis 350 Bénéteau Océanis 350 sailplanBénéteau Océanis 350 layoutBénéteau Océanis 350 accommodationsBénéteau Océanis 350 detail
Océanis 350's   Main Features
Model Océanis 350
Version Wing keel
Type of hull Monohull
Category Cruising sailboat
Designer Philippe Briand
Range Océanis
Construction Hull:
monolithic fiberglass / polyester
sandwich fiberglass / polyester
First built hull 1985
Last built hull 1992
Number of hulls built 751
Appendages Keel :
Wing keel
Helm 1 wheel
Rudder 1 spade rudder
Cockpit Closed aft cockpit
Unsinkable No
Trailerable No
Standard public price ex. VAT (indicative only) N/A
Océanis 350's   Main dimensions
Length overall 33’ 10”
Hull length 33’ 1”
Waterline length 30’
Beam (width) 11’ 4”
Draft 4’ 1”
Mast height from DWL 45’ 5”
Light displacement 10582 lbs
Ballast weight 3968 lbs
Ballast type Cast iron
French customs tonnage 12.45 Tx
Océanis 350's   Rig and sails
Upwind sail area 607 sq.ft
Mainsail area 226 sq.ft
Genoa area 381 sq.ft
Rigging type Sloop Marconi masthead
Rotating spars No
Mast position Deck stepped mast
Spars Mast and boom in Aluminum
Standing rigging 1x19 strand wire
Number of levels of spreaders 2
Spreaders angle 0 °
IiFore triangle height (from mast foot to fore stay attachment) 41’ 6”
JiFore triangle base (from mast foot to bottom of forestay) 12’ 10”
PiMainsail hoist measurement (from tack to head) 35’ 10”
EiMainsail foot measurement (from tack to clew) 11’ 6”
Océanis 350's   Performances
HN (French rating) 17.0
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.
38 %
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.
7.33 knots
Océanis 350's   Auxiliary engine
Engine(s) 1
Engine type Inboard engine
Engine 27 HP
Fuel type Diesel
Fuel tank capacity 21.1 gal
Océanis 350's   Accommodation
Cabin(s) (min/max) 2 / 3
Berth(s) (min/max) 6 / 8
Head(s) 1
Fresh water tank capacity 79.3 gal
Fridge/ice-box capacity 23.8 gal
Galley headroom 6’ 1”
Océanis 350's   Saloon
Maximum headroom 6’ 1”

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