The Ocean 71 is a 71.0ft masthead ketch designed by E.G. van de Stadt and built in fiberglass by Southern Ocean Shipyard Ltd. (UK) since 1970.
The Ocean 71 is a light sailboat which is a very high performer. It is not stiff and has an excellent righting capability if capsized. It is best suited as a heavy bluewater cruising boat.
Main features
| Model | Ocean 71 | ||
| Length | 71 ft | ||
| Beam | 17.33 ft | ||
| Draft | 8.25 ft | ||
| Country | United Kingdom (Europe) | ||
| Estimated price | $ 0 | ?? | 
Ratios
| Sail area / displ. | 28.02 | ||
| Ballast / displ. | 27.33 % | ||
| Displ. / length | 160.56 | ||
| Comfort ratio | 41.35 | ||
| Capsize | 1.65 | 
Hull
| Hull type | Monohull fin keel with rudder on skeg | ||
| Construction | Fiberglass | ||
| Waterline length | 59.30 ft | ||
| Maximum draft | 8.25 ft | ||
| Displacement | 75000 lbs | ||
| Ballast | 20500 lbs | ||
| Hull speed | 10.32 knots | 
Rigging
| Rigging | Masthead Ketch | ||
| Sail area (100%) | 3100 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 0 sq.ft | ?? | |
| Sail area main | 0 sq.ft | ?? | |
| I | 0 ft | ?? | |
| J | 0 ft | ?? | |
| P | 0 ft | ?? | |
| E | 0 ft | ?? | 
Engine
| Nb engines | 1 | ||
| Total power | 0 HP | ||
| Fuel capacity | 0 gals | 
Accommodations
| Water capacity | 0 gals | ||
| Headroom | 0 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 | 
Builder data
| Builder | Southern Ocean Shipyard Ltd. (UK) | ||
| Designer | E.G. van de Stadt | ||
| First built | 1970 | ||
| Last built | 0 | ?? | |
| Number built | 0 | ?? | 
 
                         
                                                     
                                         
                                         
                                         
                                         
                                         
                                        