Hullmaster 31 - Sailboat Data & Rig Dimensions
| Rig Dimensions | Imperial | Metric |
|---|---|---|
| I | 37.50 | 11.43 |
| J | 12.50 | 3.81 |
| P | 32.00 | 9.75 |
| E | 13.80 | 4.21 |
| PY | - | - |
| EY | - | - |
| ISP | 37.50 | 11.43 |
| JSP | 12.50 | 3.81 |
| Description | Imperial | Metric |
|---|---|---|
| Forestay Length | 12.5 | 3.8 |
| Sail Areas | Imperial | Metric |
|---|---|---|
| 100% Jib Sail Area | 234.4 | 21.8 |
| Mainsail Area (Cruising) | 238.5 | 22.2 |
| 100% Jib + Main Sail Area | 472.8 | 43.9 |
| Cruising Spinnaker Sail Area (1.7) | 398.4 | 37.1 |
| Dimensions | Imperial | Metric |
|---|---|---|
| LOA | 31.3 | 9.5 |
| LWL | 22.7 | 6.9 |
| Beam | 9.3 | 2.8 |
| Draft | N/A | N/A |
| Displacement | 10350 lbs. | 4695 kgs. |
| Ballast | 4350 lbs. | 1973 kgs. |
| Ratios | Imperial | Metric |
|---|---|---|
| Sail Area / Displac. | 0.05 | 0.01 |
| Ballast / Displac. | 0.42 | 0.42 |
| Displac. / LOA | 330.67 | 494.21 |
| Construction | Information |
|---|---|
| Hull Type | Long Keel |
| Rig Type | Masthead Sloop |
| Designer | Edward S. Brewer |
| Builder | Hullmaster Boats, Ltd. (CAN) |
| Construction | FG |
| Ballast Type | Lead |
| First Build | 1973 |
| Last Build | 1979 |
| # Built | N/A |