Irwin 3/4 Ton - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 43.80 | 13.35 |
| J | 14.00 | 4.27 |
| P | 37.10 | 11.31 |
| E | 12.00 | 3.66 |
| PY | - | - |
| EY | - | - |
| ISP | 43.80 | 13.35 |
| JSP | 14.00 | 4.27 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 14 | 4.3 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 306.6 | 28.5 |
| Mainsail Area (Cruising) | 240.4 | 22.3 |
| 100% Jib + Main Sail Area | 547 | 50.8 |
| Cruising Spinnaker Sail Area (1.7) | 521.2 | 48.5 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 34.0 | 10.4 |
| LWL | 28.3 | 8.6 |
| Beam | 9.5 | 2.9 |
| Draft | N/A | N/A |
| Displacement | 9715 lbs. | 4407 kgs. |
| Ballast | 4500 lbs. | 2041 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.06 | 0.01 |
| Ballast / Displac. | 0.46 | 0.46 |
| Displac. / LOA | 285.74 | 423.75 |
| Construction | Information |
|---|---|
| Hull Type | Fin with rudder on skeg |
| Rig Type | Masthead Sloop |
| Designer | Ted Irwin |
| Builder | Irwin Yachts (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1976 |
| Last Build | N/A |
| # Built | N/A |