Vulcan
RSA Cape 31Sail number RSA/RSA31013
GPH
546.9
OSN
530.7
LOA
9.573 m
Displacement
1775 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7516
Medium
0.9866
High
1.1662
Triple Offshore
Low
0.9616
Medium
1.2295
High
1.4311
Boat Specifications
Dimensions
- Length overall
- 9.573 m
- Beam
- 3.05 m
- Draft
- 2.44 m
- Displacement
- 1775 kg
- Crew weight
- 595 kg
- Wetted surface
- 20.3 m²
Sails
- Mainsail
- 37.69 m²
- Genoa
- 23.41 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 116.74 m²
Design
- Type
- Cape 31
- Builder
- Noordhoek
- Designer
- Mills
- Year built
- 2017
- Stability index
- 110.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 6.08 | 6.38 | 6.58 | 6.44 | 6.52 | 6.39 | 5.67 | 4.76 |
| 8 | 7.05 | 7.27 | 7.4 | 7.34 | 7.62 | 7.56 | 7.11 | 6.07 |
| 10 | 7.45 | 7.78 | 8.14 | 8.08 | 8.36 | 8.59 | 8.1 | 7.1 |
| 12 | 7.68 | 8.05 | 8.62 | 8.92 | 8.92 | 9.35 | 9.26 | 8.05 |
| 14 | 7.83 | 8.24 | 8.92 | 9.55 | 9.46 | 10.03 | 10.55 | 9.09 |
| 16 | 7.94 | 8.38 | 9.14 | 9.95 | 10.01 | 10.68 | 11.74 | 10.29 |
| 20 | 8.05 | 8.54 | 9.46 | 10.52 | 11.88 | 11.94 | 13.54 | 13.56 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 4.03 | 142.6° | 4.12 |
| 8 | 39.6° | 4.86 | 145.6° | 5.26 |
| 10 | 38.2° | 5.22 | 149.2° | 6.15 |
| 12 | 37.5° | 5.4 | 149.4° | 6.97 |
| 14 | 37° | 5.5 | 145.8° | 7.87 |
| 16 | 37° | 5.55 | 145.1° | 8.91 |
| 20 | 37° | 5.59 | 145.6° | 11.74 |
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