| Main features | Océanis 381 Classic |
Model | Océanis 381 |
Version | Classic |
Hull type | Monohull |
Category | Offshore cruising sailboat |
Sailboat builder | Bénéteau |
Sailboat designer | |
Sailboat range | |
Country | France |
Construction | GRP (glass reinforced polyester): - Hull: Single skin fiberglass polyester - Deck: Sandwich balsa fiberglass polyester |
Number of hulls built | About 300 |
First built hull | 1996 |
Last built hull | 2000 |
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 dimensions | Océanis 381 Classic |
Overall length | 38’ 6”11.75 m |
Hull length | 37’ 8”11.5 m |
Waterline length | 32’ 10”10 m |
Beam (width) | 12’ 11”3.93 m |
Draft | 5’ 4”1.62 m |
Light displacement (MLC) | 14991 lb6800 kg |
Ballast weight | 4740 lb2150 kg |
French customs tonnage | 15.30 Tx |
| Rig and sails | Océanis 381 Classic |
Upwind sail area | 750 ft²69.7 m² |
Downwind sail area | 1199 ft²111.35 m² |
Mainsail area | 337 ft²31.35 m² |
Genoa area | 413 ft²38.35 m² |
Symmetric spinnaker area | 861 ft²80 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 45’ 5”13.85 m |
J iFore triangle base (from mast foot to bottom of forestay) | 13’3.96 m |
P iMainsail hoist measurement (from tack to head) | 38’ 6”11.74 m |
E iMainsail foot measurement (from tack to clew) | 15’ 1”4.6 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 |
| Performances | Océanis 381 Classic |
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. | 209 ft²/T19.42 m²/T |
Downwind 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. | 334 ft²/T31.02 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. | 193 |
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. | 32 % |
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. | 7.68 knots |
| Auxiliary engine | Océanis 381 Classic |
Engine(s) | 1 inboard engine |
Engine(s) power (min./max.) | 30 HP / 42 HP |
Fuel type | Diesel |
Fuel tank capacity | 39.6 gal150 liters |
| Accommodations and layout | Océanis 381 Classic |
Cockpit | Closing aft cockpit with opening system |
Cabin(s) (min./max.) | 2 / 3 |
Berth(s) (min./max.) | 6 / 8 |
Head(s) (min./max.) | 1 / 2 |
Freshwater tank capacity | 126.8 gal480 liters |
Maximum headroom | 6’ 7”2.01 m |
| Saloon | Océanis 381 Classic |
Maximum headroom | 6’ 6”1.98 m |
| Fore cabin | Océanis 381 Classic |
Berth length | 6’ 7”2 m |
Berth width (head/feet) | 5’ 11”1.8 m / 4’ 11”1.5 m |
| Aft cabin | Océanis 381 Classic |
Berth length | 6’ 7”2 m |
Berth width | 4’ 1”1.24 m |