SCREWBALL
NED Hunter Formula 28Sail number NED/NED6972
GPH
694.2
OSN
676.3
LOA
8.292 m
Displacement
2219 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6808
Medium
0.9021
High
1.0123
Triple Offshore
Low
0.8698
Medium
1.0877
High
1.1986
Boat Specifications
Dimensions
- Length overall
- 8.292 m
- Beam
- 2.8 m
- Draft
- 1.7 m
- Displacement
- 2219 kg
- Crew weight
- 394 kg
- Wetted surface
- 15.4 m²
Sails
- Mainsail
- 23.95 m²
- Genoa
- 21.22 m²
- Spinnaker
- 47.15 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Hunter Formula 28
- Builder
- Hunter Boats Ltd.
- Designer
- S. Jones
- Year built
- 1983
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.94 | 5.17 | 5.34 | 5.27 | 5.16 | 4.99 | 4.5 | 3.79 |
| 8 | 5.75 | 5.9 | 5.99 | 6.01 | 6.03 | 5.92 | 5.47 | 4.76 |
| 10 | 6.07 | 6.19 | 6.3 | 6.38 | 6.44 | 6.36 | 6.13 | 5.61 |
| 12 | 6.21 | 6.35 | 6.52 | 6.61 | 6.82 | 6.74 | 6.48 | 6.17 |
| 14 | 6.27 | 6.44 | 6.7 | 6.85 | 7.18 | 7.16 | 6.86 | 6.5 |
| 16 | 6.3 | 6.49 | 6.82 | 7.08 | 7.44 | 7.54 | 7.27 | 6.86 |
| 20 | 6.3 | 6.51 | 6.93 | 7.37 | 7.77 | 8.13 | 8.16 | 7.63 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 40.8° | 3.32 | 147.8° | 3.28 |
| 8 | 40.3° | 3.95 | 152.2° | 4.12 |
| 10 | 38.3° | 4.35 | 152.8° | 4.89 |
| 12 | 37.2° | 4.5 | 170.2° | 5.59 |
| 14 | 37.2° | 4.56 | 180° | 6.1 |
| 16 | 37.1° | 4.58 | 180° | 6.43 |
| 20 | 37.5° | 4.59 | 180° | 7.12 |
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