Roller ski
NOR 3/4 tonSail number NOR/NOR4586
GPH
668.4
OSN
655.4
LOA
10.1 m
Displacement
3241 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6349
Medium
0.8155
High
0.9016
Triple Offshore
Low
0.8147
Medium
0.9991
High
1.0847
Boat Specifications
Dimensions
- Length overall
- 10.1 m
- Beam
- 3.47 m
- Draft
- 1.7 m
- Displacement
- 3241 kg
- Crew weight
- 456 kg
- Wetted surface
- 19.05 m²
Sails
- Mainsail
- 37.43 m²
- Genoa
- 23.27 m²
- Spinnaker
- 60.42 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- 3/4 ton
- Builder
- One Off
- Designer
- Robert Humphreys
- Year built
- 1984
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.1 | 5.4 | 5.65 | 5.6 | 5.56 | 5.38 | 4.87 | 4.14 |
| 8 | 5.94 | 6.16 | 6.33 | 6.36 | 6.44 | 6.34 | 5.92 | 5.15 |
| 10 | 6.26 | 6.45 | 6.64 | 6.7 | 6.88 | 6.81 | 6.52 | 6.02 |
| 12 | 6.36 | 6.56 | 6.84 | 6.98 | 7.25 | 7.24 | 6.94 | 6.56 |
| 14 | 6.39 | 6.61 | 6.95 | 7.22 | 7.5 | 7.61 | 7.36 | 6.95 |
| 16 | 6.46 | 6.63 | 7.02 | 7.39 | 7.68 | 7.91 | 7.77 | 7.35 |
| 20 | 6.46 | 6.72 | 7.13 | 7.54 | 7.88 | 8.27 | 8.55 | 8.12 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.37 | 147° | 3.59 |
| 8 | 41.2° | 3.99 | 150.5° | 4.46 |
| 10 | 40.5° | 4.29 | 154.2° | 5.26 |
| 12 | 40.3° | 4.38 | 170° | 5.92 |
| 14 | 41.2° | 4.38 | 180° | 6.47 |
| 16 | 40.9° | 4.48 | 180° | 6.85 |
| 20 | 43.1° | 4.34 | 180° | 7.61 |
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