Irwin 31 Citation - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 42.00 | 12.80 |
| J | 12.00 | 3.66 |
| P | 37.00 | 11.28 |
| E | 12.00 | 3.66 |
| PY | - | - |
| EY | - | - |
| ISP | 42.00 | 12.80 |
| JSP | 12.00 | 3.66 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 12 | 3.7 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 252 | 23.4 |
| Mainsail Area (Cruising) | 239.8 | 22.3 |
| 100% Jib + Main Sail Area | 491.8 | 45.7 |
| Cruising Spinnaker Sail Area (1.7) | 428.4 | 39.9 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 31.3 | 9.5 |
| LWL | 26.5 | 8.1 |
| Beam | 11.0 | 3.4 |
| Draft | N/A | N/A |
| Displacement | 9300 lbs. | 4218 kgs. |
| Ballast | 3400 lbs. | 1542 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.05 | 0.01 |
| Ballast / Displac. | 0.37 | 0.37 |
| Displac. / LOA | 297.12 | 444 |
| Construction | Information |
|---|---|
| Hull Type | Fin w/spade rudder |
| Rig Type | Masthead Sloop |
| Designer | Ted Irwin |
| Builder | Irwin Yachts (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1983 |
| Last Build | N/A |
| # Built | N/A |