Luders 21 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 18.00 | 5.49 |
| J | 5.50 | 1.68 |
| P | 21.50 | 6.55 |
| E | 8.25 | 2.51 |
| PY | - | - |
| EY | - | - |
| ISP | 18.00 | 5.49 |
| JSP | 5.50 | 1.68 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 5.5 | 1.7 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 49.5 | 4.6 |
| Mainsail Area (Cruising) | 95.8 | 8.9 |
| 100% Jib + Main Sail Area | 145.3 | 13.5 |
| Cruising Spinnaker Sail Area (1.7) | 84.2 | 7.9 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 21.3 | 6.5 |
| LWL | 16.0 | 4.9 |
| Beam | 5.6 | 1.7 |
| Draft | N/A | N/A |
| Displacement | 1500 lbs. | 680 kgs. |
| Ballast | 435 lbs. | 197 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.1 | 0.02 |
| Ballast / Displac. | 0.29 | 0.29 |
| Displac. / LOA | 70.42 | 104.62 |
| Construction | Information |
|---|---|
| Hull Type | Fin Keel w/bulb |
| Rig Type | Fractional Sloop |
| Designer | A. E. Luders |
| Builder | Ron Rawson Inc./ American Plastics Inc. (USA) |
| Construction | FG hull, Wood Deck |
| Ballast Type | N/A |
| First Build | 1967 |
| Last Build | N/A |
| # Built | N/A |