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SCREWBALL
Country: NED
Sail number: NED/NED6972
GPH: 692.8
OSN: 675.8
Triple Inshore: [0.6065,0.8022,0.8997]
Triple Offshore: [0.7768,0.9675,1.0658]
Length Overall: 8.292 meters.
Beam: 2.8 meters.
Crew weight: 394 kg.
Draft: 1.7 m.
Main: 23.95 m^2.
Genoa: 21.22 m^2.
Spinnaker: 47.15 m^2.
Displacement: 2219 kg.
Wetted surface: 15.35 m^2.
Builder: Hunter Boats Ltd.
Designer: S. Jones
Stability index: 110.1
Boat type: Hunter Formula 28
Year built: 1983
| Wind Speed | 52°0 | 60°1 | 75°2 | 90°3 | 110°4 | 120°5 | 135°6 | 150°7 |
|---|---|---|---|---|---|---|---|---|
| 6 | angle: 0 4.98 | angle: 1 5.23 | angle: 2 5.42 | angle: 3 5.36 | angle: 4 5.2 | angle: 5 5.03 | angle: 6 4.53 | angle: 7 3.81 |
| 8 | angle: 0 5.75 | angle: 1 5.91 | angle: 2 6.02 | angle: 3 6.03 | angle: 4 6.06 | angle: 5 5.95 | angle: 6 5.5 | angle: 7 4.78 |
| 10 | angle: 0 6.07 | angle: 1 6.19 | angle: 2 6.3 | angle: 3 6.38 | angle: 4 6.45 | angle: 5 6.38 | angle: 6 6.14 | angle: 7 5.63 |
| 12 | angle: 0 6.2 | angle: 1 6.35 | angle: 2 6.52 | angle: 3 6.61 | angle: 4 6.82 | angle: 5 6.75 | angle: 6 6.5 | angle: 7 6.18 |
| 14 | angle: 0 6.26 | angle: 1 6.43 | angle: 2 6.7 | angle: 3 6.86 | angle: 4 7.18 | angle: 5 7.16 | angle: 6 6.88 | angle: 7 6.51 |
| 16 | angle: 0 6.3 | angle: 1 6.48 | angle: 2 6.82 | angle: 3 7.09 | angle: 4 7.44 | angle: 5 7.55 | angle: 6 7.29 | angle: 7 6.87 |
| 20 | angle: 0 6.32 | angle: 1 6.51 | angle: 2 6.92 | angle: 3 7.37 | angle: 4 7.77 | angle: 5 8.14 | angle: 6 8.18 | angle: 7 7.65 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.2° | 3.32 | 147.5° | 3.3 |
| 8 | 40.5° | 3.95 | 152° | 4.13 |
| 10 | 38.2° | 4.35 | 153° | 4.9 |
| 12 | 37.1° | 4.49 | 170° | 5.6 |
| 14 | 36.8° | 4.55 | 180° | 6.11 |
| 16 | 37.1° | 4.58 | 180° | 6.44 |
| 20 | 37.5° | 4.58 | 180° | 7.13 |
- undefined