J/39 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 53.50 | 16.31 |
| J | 15.50 | 4.72 |
| P | 47.20 | 14.39 |
| E | 16.30 | 4.97 |
| PY | - | - |
| EY | - | - |
| ISP | 53.50 | 16.31 |
| JSP | 15.50 | 4.72 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 15.5 | 4.7 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 414.6 | 38.5 |
| Mainsail Area (Cruising) | 415.5 | 38.6 |
| 100% Jib + Main Sail Area | 830.1 | 77.1 |
| Cruising Spinnaker Sail Area (1.7) | 704.9 | 65.6 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 39.4 | 12.0 |
| LWL | 32.5 | 9.9 |
| Beam | 12.4 | 3.8 |
| Draft | N/A | N/A |
| Displacement | 12900 lbs. | 5851 kgs. |
| Ballast | 5900 lbs. | 2676 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.06 | 0.01 |
| Ballast / Displac. | 0.46 | 0.46 |
| Displac. / LOA | 327.41 | 487.58 |
| Construction | Information |
|---|---|
| Hull Type | Fin w/spade rudder |
| Rig Type | Masthead Sloop |
| Designer | Johnstone |
| Builder | J Boats Tillotson Pearson (USA) |
| Construction | FG |
| Ballast Type | Lead |
| First Build | 1989 |
| Last Build | 1997 |
| # Built | 25 |