O'Day 31 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 39.75 | 12.12 |
| J | 13.25 | 4.04 |
| P | 33.75 | 10.29 |
| E | 10.25 | 3.12 |
| PY | - | - |
| EY | - | - |
| ISP | 39.75 | 12.12 |
| JSP | 13.25 | 4.04 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 13.3 | 4 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 263.3 | 24.5 |
| Mainsail Area (Cruising) | 186.8 | 17.4 |
| 100% Jib + Main Sail Area | 450.1 | 41.8 |
| Cruising Spinnaker Sail Area (1.7) | 447.7 | 41.7 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 30.1 | 9.2 |
| LWL | 25.9 | 7.9 |
| Beam | 10.8 | 3.3 |
| Draft | N/A | N/A |
| Displacement | 10100 lbs. | 4581 kgs. |
| Ballast | 3800 lbs. | 1724 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.04 | 0.01 |
| Ballast / Displac. | 0.38 | 0.38 |
| Displac. / LOA | 335.55 | 497.93 |
| Construction | Information |
|---|---|
| Hull Type | Fin w/spade rudder |
| Rig Type | Masthead Sloop |
| Designer | C. Raymond Hunt Associates |
| Builder | O'Day Corp. (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1985 |
| Last Build | 1988 |
| # Built | 150 |