Detailed sailboat specifications and datasheets since 2015
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Océanis 400 (Shoal draft)

Main featuresOcéanis 400 Shoal draft
Model
Océanis 400
Version
Shoal draft
Hull type
Monohull
Category
Cruising sailboat
Sailboat builder
Bénéteau
Sailboat designer
Sailboat range
Country
France
Construction
Hull and deck: GRP (glass reinforced polyester)
Number of hulls built
474
First built hull
1991
Last built hull
1997
Appendages
Keel : L-shaped keel (with bulb)
Helm
Single helm wheel
Rudder
Single spade rudder
Unsinkable
No
Trailerable
No
Former French navigation category
1
 
Main dimensionsOcéanis 400 Shoal draft
Hull length
39’ 10”12.12 m
Waterline length
34’ 11”10.64 m
Beam (width)
12’ 10”3.91 m
Draft
4’ 8”1.42 m
Mast height from DWL
53’16.15 m
Light displacement (MLC)
16001 lb7258 kg
Ballast weight
5600 lb2540 kg
Ballast type
Cast iron
 
Rig and sailsOcéanis 400 Shoal draft
Upwind sail area
883 ft²82 m²
Mainsail area
377 ft²35 m²
Genoa area
506 ft²47 m²
I
 iFore triangle height (from mast foot to fore stay top attachment)
48’ 2”14.7 m
J
 iFore triangle base (from mast foot to bottom of forestay)
13’ 6”4.11 m
P
 iMainsail hoist measurement (from tack to head)
42’ 4”12.89 m
E
 iMainsail foot measurement (from tack to clew)
15’ 8”4.79 m
Rigging type
Sloop Marconi masthead
Mast configuration
Deck stepped mast
Rotating spars
No
Number of levels of spreaders
2
Spreaders angle
Swept-back
Spars construction
Aluminum spars
Standing rigging
1x19 strand wire discontinuous
 
PerformancesOcéanis 400 Shoal draft
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.
235 ft²/T21.87 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.
171
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.
35 %
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.
7.92 knots
 
Auxiliary engineOcéanis 400 Shoal draft
Engine(s)
1 inboard engine
Engine(s) power
50 HP
Fuel type
Diesel
Fuel tank capacity
39.6 gal150 liters
 
Accommodations and layoutOcéanis 400 Shoal draft
Cockpit
Closed aft cockpit
Cabin(s) (min./max.)
2 / 3
Berth(s) (min./max.)
4 / 8
Head(s)
2
Freshwater tank capacity
140 gal530 liters
Maximum headroom
6’ 5”1.95 m
 
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