NITRO 31
RSA Cape 31Sail number RSA/RSA31011
GPH
549.8
OSN
533.3
LOA
9.573 m
Displacement
1840 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7473
Medium
0.9828
High
1.1603
Triple Offshore
Low
0.9561
Medium
1.2237
High
1.4233
Boat Specifications
Dimensions
- Length overall
- 9.573 m
- Beam
- 3.05 m
- Draft
- 2.44 m
- Displacement
- 1840 kg
- Crew weight
- 600 kg
- Wetted surface
- 20.52 m²
Sails
- Mainsail
- 37.6 m²
- Genoa
- 23.55 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 116.64 m²
Design
- Type
- Cape 31
- Builder
- Noordhoek
- Designer
- Mills
- Year built
- 2017
- Stability index
- 109.9
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 6.04 | 6.34 | 6.53 | 6.38 | 6.48 | 6.35 | 5.64 | 4.73 |
| 8 | 7.02 | 7.23 | 7.36 | 7.3 | 7.58 | 7.53 | 7.08 | 6.03 |
| 10 | 7.43 | 7.74 | 8.08 | 8.01 | 8.33 | 8.53 | 8.05 | 7.07 |
| 12 | 7.65 | 8.02 | 8.58 | 8.83 | 8.89 | 9.31 | 9.17 | 8 |
| 14 | 7.8 | 8.21 | 8.87 | 9.47 | 9.42 | 9.98 | 10.43 | 9 |
| 16 | 7.91 | 8.34 | 9.09 | 9.87 | 9.93 | 10.62 | 11.65 | 10.18 |
| 20 | 8.03 | 8.5 | 9.4 | 10.44 | 11.73 | 11.86 | 13.46 | 13.36 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 4 | 142.6° | 4.1 |
| 8 | 39.6° | 4.83 | 145.6° | 5.22 |
| 10 | 38.2° | 5.21 | 148.8° | 6.12 |
| 12 | 37.5° | 5.39 | 149.6° | 6.93 |
| 14 | 37° | 5.49 | 146° | 7.79 |
| 16 | 36.9° | 5.55 | 145.6° | 8.81 |
| 20 | 37° | 5.59 | 145.1° | 11.57 |
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