Ross 780 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 25.75 | 7.85 |
| J | 8.50 | 2.59 |
| P | 28.75 | 8.76 |
| E | 12.75 | 3.89 |
| PY | - | - |
| EY | - | - |
| ISP | 25.75 | 7.85 |
| JSP | 8.50 | 2.59 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 8.5 | 2.6 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 109.4 | 10.2 |
| Mainsail Area (Cruising) | 197.9 | 18.4 |
| 100% Jib + Main Sail Area | 307.4 | 28.6 |
| Cruising Spinnaker Sail Area (1.7) | 186 | 17.4 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 25.6 | 7.8 |
| LWL | 23.3 | 7.1 |
| Beam | 8.1 | 2.5 |
| Draft | 0.9 | 0.3 |
| Displacement | 2490 lbs. | 1129 kgs. |
| Ballast | 1012 lbs. | 459 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.12 | 0.03 |
| Ballast / Displac. | 0.41 | 0.41 |
| Displac. / LOA | 97.27 | 144.74 |
| Construction | Information |
|---|---|
| Hull Type | Lifting Keel |
| Rig Type | Fractional Sloop |
| Designer | Murray Ross |
| Builder | Austin - Hopwood Boats (NZ) |
| Construction | FG |
| Ballast Type | Lead |
| First Build | 1980 |
| Last Build | N/A |
| # Built | 70 |