Explorer 21 (Helsen) - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 24.83 | 7.57 |
| J | 7.04 | 2.15 |
| P | 20.00 | 6.10 |
| E | 8.75 | 2.67 |
| PY | - | - |
| EY | - | - |
| ISP | 24.83 | 7.57 |
| JSP | 7.04 | 2.15 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 7 | 2.1 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 87.4 | 8.1 |
| Mainsail Area (Cruising) | 94.5 | 8.8 |
| 100% Jib + Main Sail Area | 181.9 | 16.9 |
| Cruising Spinnaker Sail Area (1.7) | 148.6 | 13.9 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 21.5 | 6.6 |
| LWL | 17.3 | 5.3 |
| Beam | 7.3 | 2.2 |
| Draft | 1.2 | 0.4 |
| Displacement | 1750 lbs. | 794 kgs. |
| Ballast | 200 lbs. | 91 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.1 | 0.02 |
| Ballast / Displac. | 0.11 | 0.11 |
| Displac. / LOA | 81.4 | 120.3 |
| Construction | Information |
|---|---|
| Hull Type | Swing Keel |
| Rig Type | Masthead Sloop |
| Designer | Helsen |
| Builder | Southcoast Boats (USA) |
| Construction | FG |
| Ballast Type | N/A |
| First Build | 1977 |
| Last Build | N/A |
| # Built | N/A |