GRAMPUS II
GBR Swan 47 (1975)Sail number GBR/K1226
GPH
598.8
OSN
581.5
LOA
14.6 m
Displacement
14960 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.685
Medium
0.9193
High
1.064
Triple Offshore
Low
0.8783
Medium
1.1296
High
1.2597
Boat Specifications
Dimensions
- Length overall
- 14.6 m
- Beam
- 4.19 m
- Draft
- 2.37 m
- Displacement
- 14960 kg
- Crew weight
- 807 kg
- Wetted surface
- 42.85 m²
Sails
- Mainsail
- 50.37 m²
- Genoa
- 81.4 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 165.09 m²
Design
- Type
- Swan 47 (1975)
- Builder
- Nautor
- Designer
- S&S
- Year built
- 1975
- Stability index
- 144.4
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.61 | 5.89 | 6.07 | 5.95 | 5.79 | 5.66 | 5.13 | 4.35 |
| 8 | 6.56 | 6.81 | 6.97 | 6.9 | 6.96 | 6.82 | 6.31 | 5.48 |
| 10 | 7.16 | 7.36 | 7.51 | 7.49 | 7.66 | 7.59 | 7.23 | 6.44 |
| 12 | 7.48 | 7.66 | 7.82 | 7.85 | 8.05 | 8.04 | 7.8 | 7.23 |
| 14 | 7.64 | 7.83 | 8.02 | 8.09 | 8.34 | 8.37 | 8.19 | 7.76 |
| 16 | 7.74 | 7.93 | 8.17 | 8.28 | 8.57 | 8.66 | 8.51 | 8.12 |
| 20 | 7.83 | 8.04 | 8.33 | 8.57 | 8.87 | 9.13 | 9.11 | 8.74 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.69 | 144.2° | 3.77 |
| 8 | 41.2° | 4.43 | 147.8° | 4.75 |
| 10 | 40° | 4.94 | 150.2° | 5.58 |
| 12 | 39.4° | 5.23 | 155° | 6.31 |
| 14 | 38.8° | 5.39 | 163.1° | 6.93 |
| 16 | 38.4° | 5.5 | 174.5° | 7.48 |
| 20 | 38.1° | 5.61 | 178.4° | 8.22 |
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