J/30 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 34.19 | 10.42 |
| J | 11.50 | 3.51 |
| P | 38.00 | 11.58 |
| E | 13.00 | 3.96 |
| PY | - | - |
| EY | - | - |
| ISP | 34.19 | 10.42 |
| JSP | 11.50 | 3.51 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 11.5 | 3.5 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 196.6 | 18.3 |
| Mainsail Area (Cruising) | 266.8 | 24.8 |
| 100% Jib + Main Sail Area | 463.4 | 43 |
| Cruising Spinnaker Sail Area (1.7) | 334.2 | 31.1 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 29.8 | 9.1 |
| LWL | 25.0 | 7.6 |
| Beam | 11.2 | 3.4 |
| Draft | N/A | N/A |
| Displacement | 7000 lbs. | 3175 kgs. |
| Ballast | 2100 lbs. | 953 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.07 | 0.01 |
| Ballast / Displac. | 0.3 | 0.3 |
| Displac. / LOA | 234.9 | 348.9 |
| Construction | Information |
|---|---|
| Hull Type | Fin w/transom hung rudder |
| Rig Type | Fractional Sloop |
| Designer | Johnstone |
| Builder | J Boats Tillotson Pearson (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1979 |
| Last Build | 1986 |
| # Built | 554 |