Dufour 31 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 37.60 | 11.46 |
| J | 11.97 | 3.65 |
| P | 33.30 | 10.15 |
| E | 10.20 | 3.11 |
| PY | - | - |
| EY | - | - |
| ISP | 37.60 | 11.46 |
| JSP | 11.97 | 3.65 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 12 | 3.6 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 225 | 20.9 |
| Mainsail Area (Cruising) | 183.4 | 17 |
| 100% Jib + Main Sail Area | 408.5 | 37.9 |
| Cruising Spinnaker Sail Area (1.7) | 382.6 | 35.6 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 30.8 | 9.4 |
| LWL | 23.0 | 7.0 |
| Beam | 10.5 | 3.2 |
| Draft | N/A | N/A |
| Displacement | 9600 lbs. | 4355 kgs. |
| Ballast | 3696 lbs. | 1677 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.04 | 0.01 |
| Ballast / Displac. | 0.39 | 0.39 |
| Displac. / LOA | 311.69 | 463.3 |
| Construction | Information |
|---|---|
| Hull Type | Fin with rudder on skeg |
| Rig Type | Masthead Sloop |
| Designer | Michel Dufour |
| Builder | Dufour |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1973 |
| Last Build | N/A |
| # Built | 900 |