Pure Magic
RSA J-27Sail number RSA/RSA190
GPH
665.6
OSN
647.5
LOA
8.428 m
Displacement
1730 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6243
Medium
0.8292
High
0.9391
Triple Offshore
Low
0.8031
Medium
1.0094
High
1.1257
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
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.28 | 5.52 | 5.67 | 5.57 | 5.33 | 5.12 | 4.59 | 3.78 |
| 8 | 6.06 | 6.21 | 6.31 | 6.35 | 6.24 | 6.11 | 5.62 | 4.84 |
| 10 | 6.37 | 6.51 | 6.65 | 6.77 | 6.76 | 6.67 | 6.33 | 5.74 |
| 12 | 6.49 | 6.66 | 6.89 | 7.09 | 7.19 | 7.15 | 6.8 | 6.38 |
| 14 | 6.57 | 6.75 | 7.04 | 7.3 | 7.58 | 7.61 | 7.27 | 6.82 |
| 16 | 6.62 | 6.82 | 7.15 | 7.47 | 8 | 8.1 | 7.79 | 7.26 |
| 20 | 6.67 | 6.9 | 7.29 | 7.75 | 8.86 | 9.57 | 9.35 | 8.31 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.5 | 144.2° | 3.27 |
| 8 | 40° | 4.2 | 150.2° | 4.2 |
| 10 | 37.6° | 4.55 | 153.2° | 4.99 |
| 12 | 37.2° | 4.69 | 161.9° | 5.69 |
| 14 | 37° | 4.76 | 177.2° | 6.26 |
| 16 | 36.9° | 4.8 | 178.1° | 6.68 |
| 20 | 37.5° | 4.79 | 178.4° | 7.5 |
Loading polar chart…