Pure Magic
RSA J-27Sail number RSA/RSA190
GPH
663.1
OSN
645.3
LOA
8.36 m
Displacement
1730 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6965
Medium
0.9361
High
1.0612
Triple Offshore
Low
0.8996
Medium
1.1424
High
1.2833
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
- 22.84 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 | 5.14 | 5.42 | 5.69 | 5.62 | 5.34 | 5.16 | 4.64 | 3.84 |
| 8 | 6.02 | 6.2 | 6.33 | 6.33 | 6.29 | 6.17 | 5.68 | 4.88 |
| 10 | 6.39 | 6.54 | 6.68 | 6.7 | 6.79 | 6.68 | 6.37 | 5.77 |
| 12 | 6.53 | 6.72 | 7 | 7.09 | 7.32 | 7.21 | 6.81 | 6.41 |
| 14 | 6.6 | 6.82 | 7.21 | 7.48 | 7.84 | 7.78 | 7.32 | 6.82 |
| 16 | 6.64 | 6.88 | 7.34 | 7.78 | 8.21 | 8.43 | 7.89 | 7.29 |
| 20 | 6.7 | 6.96 | 7.45 | 8.06 | 8.83 | 9.54 | 9.44 | 8.41 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.39 | 146.5° | 3.33 |
| 8 | 41.2° | 4.09 | 150.8° | 4.22 |
| 10 | 38.5° | 4.55 | 152.1° | 5.02 |
| 12 | 37.5° | 4.71 | 165.5° | 5.73 |
| 14 | 37.1° | 4.78 | 180° | 6.31 |
| 16 | 37° | 4.8 | 180° | 6.7 |
| 20 | 37.6° | 4.8 | 180° | 7.59 |
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