Harstad 31 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 27.00 | 8.23 |
| J | 13.00 | 3.96 |
| P | 22.00 | 6.71 |
| E | 11.00 | 3.35 |
| PY | 14.00 | 4.27 |
| EY | 5.00 | 1.52 |
| ISP | 27.00 | 8.23 |
| JSP | 13.00 | 3.96 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 13 | 4 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 175.5 | 16.3 |
| Mainsail Area (Cruising) | 130.7 | 12.1 |
| 100% Jib + Main Sail Area | 306.2 | 28.4 |
| Cruising Spinnaker Sail Area (1.7) | 298.4 | 27.8 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 31.6 | 9.6 |
| LWL | 26.3 | 8.0 |
| Beam | 8.0 | 2.4 |
| Draft | N/A | N/A |
| Displacement | 8000 lbs. | 3629 kgs. |
| Ballast | 1950 lbs. | 885 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.04 | 0.01 |
| Ballast / Displac. | 0.24 | 0.24 |
| Displac. / LOA | 253.16 | 378.02 |
| Construction | Information |
|---|---|
| Hull Type | Long keel w/trans. hung rudder |
| Rig Type | Masthead Ketch |
| Designer | W.I.B. Crealock |
| Builder | Harstad Trawler Company (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1975 |
| Last Build | 1976 |
| # Built | 6 |