The Southern cross 31 is a 34.5ft cutter designed by Thomas Gillmer and built in fiberglass by C. E. Ryder since 1975.
150 units have been built.
The Southern cross 31 is a heavy sailboat which is under powered. It is reasonably stable / stiff and has an excellent righting capability if capsized. It is best suited as a bluewater cruising boat. The fuel capacity is originally small. There is a short water supply range.
Main features
| Model | Southern cross 31 | ||
| Length | 34.50 ft | ||
| Beam | 9.50 ft | ||
| Draft | 4.58 ft | ||
| Country | United states (North America) | ||
| Estimated price | $ 0 | ?? |
Ratios
| Sail area / displ. | 12.60 | ||
| Ballast / displ. | 32.35 % | ||
| Displ. / length | 388.57 | ||
| Comfort ratio | 37.62 | ||
| Capsize | 1.59 |
Hull
| Hull type | Monohull long keel with transom hung rudder | ||
| Construction | Fiberglass | ||
| Waterline length | 25 ft | ||
| Maximum draft | 4.58 ft | ||
| Displacement | 13600 lbs | ||
| Ballast | 4400 lbs | ||
| Hull speed | 6.70 knots |
Rigging
| Rigging | Cutter | ||
| Sail area (100%) | 447 sq.ft | ||
| Air draft | 0 ft | ?? | |
| Sail area fore | 282.88 sq.ft | ||
| Sail area main | 212.63 sq.ft | ||
| I | 36.50 ft | ||
| J | 15.50 ft | ||
| P | 31.50 ft | ||
| E | 13.50 ft |
Engine
| Nb engines | 1 | ||
| Total power | 22 HP | ||
| Fuel capacity | 34 gals |
Accommodations
| Water capacity | 47 gals | ||
| Headroom | 6.17 ft | ||
| Nb of cabins | 0 | ||
| Nb of berths | 0 | ||
| Nb heads | 0 |
Builder data
| Builder | C. E. Ryder | ||
| Designer | Thomas Gillmer | ||
| First built | 1975 | ||
| Last built | 0 | ?? | |
| Number built | 150 |