Seafarer 31 MK I - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 36.50 | 11.13 |
| J | 11.70 | 3.57 |
| P | 31.20 | 9.51 |
| E | 13.00 | 3.96 |
| PY | - | - |
| EY | - | - |
| ISP | 36.50 | 11.13 |
| JSP | 11.70 | 3.57 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 11.7 | 3.6 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 213.5 | 19.8 |
| Mainsail Area (Cruising) | 219 | 20.3 |
| 100% Jib + Main Sail Area | 432.6 | 40.2 |
| Cruising Spinnaker Sail Area (1.7) | 363 | 33.8 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 31.2 | 9.5 |
| LWL | 22.3 | 6.8 |
| Beam | 8.8 | 2.7 |
| Draft | N/A | N/A |
| Displacement | 8750 lbs. | 3969 kgs. |
| Ballast | 3400 lbs. | 1542 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.05 | 0.01 |
| Ballast / Displac. | 0.39 | 0.39 |
| Displac. / LOA | 280.45 | 417.79 |
| Construction | Information |
|---|---|
| Hull Type | Fin with rudder on skeg |
| Rig Type | Masthead Sloop |
| Designer | William Tripp Jr. |
| Builder | Seafarer Fiberglass Yachts Inc. |
| Construction | FG (solid hull/balsa cored deck) |
| Ballast Type | Lead |
| First Build | 1968 |
| Last Build | 1974 |
| # Built | N/A |