| Main features | Océanis 51.1 Deep draft |
Model | Océanis 51.1 |
Version | Deep draft |
Hull type | Monohull |
Category | Offshore cruising sailboat |
Sailboat builder | Bénéteau |
Sailboat designer | |
Sailboat range | |
Country | France |
Construction | GRP (glass reinforced polyester): - Hull: Sandwich balsa fiberglass polyester (vacuum infusion) - Deck: Sandwich foam fiberglass polyester (injection molding process) |
First built hull | 2017 |
Last built hull | Still in production |
Appendages | Keel : L-shaped keel (with bulb) |
Helm | Twin helm wheels |
Rudder | Twin spade rudders |
Unsinkable | No |
Trailerable | No |
EC design category iThe CE design category indicates the ability to cope with certain weather conditions (the sailboat is designed for these conditions)A: Wind < force 9, Waves < 10m B: Wind < force 8, Waves < 8m C: Wind < force 6, Waves < 4m D: Wind < force 4, Waves < 0,5m | A |
Standard public price ex. VAT (indicative only) | 349200 2020 |
| Main dimensions | Océanis 51.1 Deep draft |
Overall length | 50’ 7”15.43 m |
Hull length | 49’ 1”14.98 m |
Waterline length | 47’ 7”14.52 m |
Beam (width) | 15’ 8”4.8 m |
Draft | 7’ 8”2.36 m |
Mast height from DWL | 70’ 2”21.4 m |
Light displacement (MLC) | 30710 lb13930 kg |
Ballast weight | 7487 lb3396 kg |
Ballast type | Cast iron |
| Rig and sails | Océanis 51.1 Deep draft |
Upwind sail area | 1313 ft²122 m² |
Downwind sail area | 2551 ft²237 m² |
Mainsail area | 614 ft²57 m² |
Genoa area | 700 ft²65 m² |
Asymmetric spinnaker area | 1938 ft²180 m² |
Code 0 area | 1485 ft²138 m² |
I iFore triangle height (from mast foot to fore stay top attachment) | 60’ 1”18.32 m |
J iFore triangle base (from mast foot to bottom of forestay) | 20’ 8”6.3 m |
P iMainsail hoist measurement (from tack to head) | 57’ 8”17.58 m |
E iMainsail foot measurement (from tack to clew) | 18’5.5 m |
Rigging type | Sloop Marconi 9/10 |
Mast configuration | Deck stepped mast |
Rotating spars | No |
Number of levels of spreaders | 2 |
Spreaders angle | Swept-back |
Spars construction | Aluminum spars (carbon fiber spars as an option) |
Standing rigging | 1x19 strand wire |
| Performances | Océanis 51.1 Deep 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. | 227 ft²/T21.07 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. | 441 ft²/T40.94 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. | 129 |
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. | 24 % |
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. | 9.25 knots |
| Auxiliary engine | Océanis 51.1 Deep draft |
Engine(s) | 1 inboard engine |
Engine(s) power (min./max.) | 80 HP / 110 HP |
Fuel type | Diesel |
Fuel tank capacity | 52.8 gal200 liters |
| Accommodations and layout | Océanis 51.1 Deep draft |
Cockpit | Open aft cockpit |
Cabin(s) (min./max.) | 3 / 5 |
Berth(s) (min./max.) | 6 / 12 |
Head(s) (min./max.) | 2 / 4 |
Freshwater tank capacity | 116.2 gal440 liters |
Holding tank capacity | 42.3 gal160 liters |
Fridge/ice-box capacity | 60.8 gal230 liters |
Boiler capacity | 10.6 gal40 liters |
Galley headroom | 6’ 5”1.94 m |
Head headroom | 6’ 1”1.85 m |
| Saloon | Océanis 51.1 Deep draft |
Maximum headroom | 6’ 8”2.03 m |
| Fore cabin | Océanis 51.1 Deep draft |
Maximum headroom | 6’ 5”1.95 m |
Berth length | 6’ 8”2.05 m |
Berth width (head/feet) | 5’ 2”1.6 m / 4’1.23 m |
| Aft cabin | Océanis 51.1 Deep draft |
Maximum headroom | 6’ 6”1.97 m |
Berth length | 6’ 11”2.1 m |
Berth width | 5’ 2”1.6 m |