Pure Magic
RSA J-27Sail number RSA/RSA190
GPH
667.5
OSN
649.7
LOA
8.428 m
Displacement
1730 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6123
Medium
0.8234
High
0.9324
Triple Offshore
Low
0.7937
Medium
1.01
High
1.1322
Boat Specifications
Dimensions
- Length overall
- 8.428 m
- Beam
- 2.6 m
- Draft
- 1.51 m
- Displacement
- 1730 kg
- Crew weight
- 375 kg
- Wetted surface
- 15.01 m²
Sails
- Mainsail
- 24.33 m²
- Genoa
- 22.84 m²
- Spinnaker
- 43.35 m²
- Asymmetric spinnaker
- 37.14 m²
Design
- Type
- J-27
- Builder
- J boats
- Designer
- Johnstone
- Year built
- 1983
- Stability index
- 99.8
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.09 | 5.39 | 5.64 | 5.65 | 5.38 | 5.12 | 4.59 | 3.79 |
| 8 | 6 | 6.18 | 6.31 | 6.4 | 6.28 | 6.15 | 5.65 | 4.84 |
| 10 | 6.35 | 6.51 | 6.66 | 6.85 | 6.79 | 6.68 | 6.36 | 5.77 |
| 12 | 6.47 | 6.66 | 6.97 | 7.27 | 7.32 | 7.22 | 6.82 | 6.41 |
| 14 | 6.54 | 6.75 | 7.14 | 7.53 | 7.82 | 7.8 | 7.35 | 6.84 |
| 16 | 6.57 | 6.81 | 7.26 | 7.73 | 8.36 | 8.43 | 7.93 | 7.33 |
| 20 | 6.65 | 6.93 | 7.38 | 7.99 | 9.18 | 9.73 | 9.52 | 8.5 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.34 | 145.1° | 3.29 |
| 8 | 41.8° | 4.05 | 150.2° | 4.19 |
| 10 | 39° | 4.48 | 152° | 5 |
| 12 | 38.2° | 4.63 | 161° | 5.72 |
| 14 | 37.8° | 4.7 | 177.2° | 6.28 |
| 16 | 38.1° | 4.7 | 178.4° | 6.69 |
| 20 | 38.5° | 4.73 | 176.6° | 7.59 |
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