Pure Magic
RSA J-27Sail number RSA/RSA190
GPH
669.6
OSN
652.4
LOA
8.36 m
Displacement
1730 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6793
Medium
0.9208
High
1.0559
Triple Offshore
Low
0.8846
Medium
1.1334
High
1.2849
Boat Specifications
Dimensions
- Length overall
- 8.36 m
- Beam
- 2.6 m
- Draft
- 1.51 m
- Displacement
- 1730 kg
- Crew weight
- 431 kg
- Wetted surface
- 15.25 m²
Sails
- Mainsail
- 24.33 m²
- Genoa
- 23.71 m²
- Spinnaker
- 43.35 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-27
- Builder
- J boats
- Designer
- Johnstone
- Year built
- 1983
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.01 | 5.35 | 5.66 | 5.67 | 5.32 | 5.13 | 4.61 | 3.82 |
| 8 | 5.93 | 6.17 | 6.35 | 6.37 | 6.26 | 6.14 | 5.64 | 4.85 |
| 10 | 6.36 | 6.54 | 6.73 | 6.76 | 6.74 | 6.64 | 6.34 | 5.75 |
| 12 | 6.52 | 6.74 | 7.1 | 7.19 | 7.29 | 7.14 | 6.77 | 6.38 |
| 14 | 6.61 | 6.87 | 7.34 | 7.62 | 7.87 | 7.71 | 7.26 | 6.78 |
| 16 | 6.68 | 6.96 | 7.48 | 7.96 | 8.24 | 8.4 | 7.82 | 7.24 |
| 20 | 6.76 | 7.06 | 7.61 | 8.23 | 8.89 | 9.54 | 9.34 | 8.34 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44° | 3.25 | 146.4° | 3.31 |
| 8 | 43° | 3.92 | 150.7° | 4.2 |
| 10 | 40.7° | 4.39 | 152.1° | 4.99 |
| 12 | 39.2° | 4.61 | 163.7° | 5.71 |
| 14 | 38.2° | 4.72 | 180° | 6.29 |
| 16 | 37.8° | 4.78 | 180° | 6.68 |
| 20 | 38.1° | 4.8 | 180° | 7.56 |
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