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

Océanis 350 Wing keel

Sailboat specifications

The Océanis 350 is a 33’1” (10.1m) cruising sailboat designed by Philippe Briand (France). She was built between 1985 and 1992 by Bénéteau (France) with 751 hulls completed. The Wing keel version is offered with a short keel fitted with large winglets. This configuration provides an interesting draft / low center of gravity / upwind performance trade-off.

The Océanis 350 is as well listed, on, in Deep draft version (see all the versions compared).

Océanis 350's main features

Océanis 350
Wing keel
Hull type
Cruising sailboat
Sailboat builder
Sailboat designer
Sailboat range
GRP (glass reinforced polyester):
- Hull: Single skin fiberglass polyester
- Deck: Sandwich fiberglass polyester
Number of hulls built
First built hull
Last built hull
Keel : wing keel
Single helm wheel
Single spade rudder
Standard public price ex. VAT (indicative only)

Océanis 350's main dimensions

Overall length
33’ 10”10.3 m
Hull length
33’ 1”10.1 m
Waterline length
30’9.13 m
Beam (width)
11’ 4”3.43 m
4’ 1”1.25 m
Mast height from DWL
45’ 5”13.84 m
Light displacement (MLC)
10582 lb4800 kg
Ballast weight
3968 lb1800 kg
Ballast type
Cast iron
French customs tonnage
12.45 Tx

Océanis 350's rig and sails

Upwind sail area
607 ft²56.4 m²
Mainsail area
226 ft²21 m²
Genoa area
381 ft²35.4 m²
 iFore triangle height (from mast foot to fore stay top attachment)
41’ 6”12.65 m
 iFore triangle base (from mast foot to bottom of forestay)
12’ 10”3.9 m
 iMainsail hoist measurement (from tack to head)
35’ 10”10.9 m
 iMainsail foot measurement (from tack to clew)
11’ 6”3.5 m
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
Number of levels of spreaders
Spreaders angle
0 °
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire

Océanis 350's performances

HN (French rating)
 iHN or "Handicap Nationale" is an empirical rating system used in France allowing various monohulls, of different sizes and designs, to race each other fairly. It is particularly suitable for cruiser and cruiser-racer. Therefore, by comparing these values, we can have an indication of the relative speed of 2 boats.
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.
213 ft²/T19.82 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.
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.
38 %
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.
7.33 knots

Océanis 350's auxiliary engine

1 inboard engine
Engine(s) power
27 HP
Fuel type
Fuel tank capacity
21.1 gal80 liters

Océanis 350's accommodations and layout

Closed aft cockpit
Cabin(s) (min./max.)
2 / 3
Berth(s) (min./max.)
6 / 8
Freshwater tank capacity
79.3 gal300 liters
Fridge/ice-box capacity
23.8 gal90 liters
Galley headroom
6’ 1”1.86 m

Océanis 350's saloon

Maximum headroom
6’ 1”1.86 m
Have you spotted incorrect data?  You can report it in the forum or contact the webmaster

Similar sailboats that may interest you: uses cookies to improve user experience. By using our website you consent to all cookies in accordance with our Cookie Policy.

Read more