Jacana
RSA J-133Sail number RSA/GBR5733R
GPH
570
OSN
553.6
LOA
13.14 m
Displacement
9307 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7938
Medium
1.0841
High
1.2378
Triple Offshore
Low
1.0299
Medium
1.3412
High
1.4945
Boat Specifications
Dimensions
- Length overall
- 13.14 m
- Beam
- 3.87 m
- Draft
- 2.3 m
- Displacement
- 9307 kg
- Crew weight
- 952 kg
- Wetted surface
- 38.43 m²
Sails
- Mainsail
- 54.67 m²
- Genoa
- 48.32 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 180.02 m²
Design
- Type
- J-133
- Builder
- J Boats
- Designer
- Johnstone
- Year built
- 2003
Velocity Prediction
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.61 | 5.97 | 6.27 | 6.19 | 6.33 | 6.2 | 5.51 | 4.65 |
| 8 | 6.71 | 7.06 | 7.33 | 7.45 | 7.62 | 7.52 | 6.92 | 5.84 |
| 10 | 7.49 | 7.73 | 7.91 | 7.96 | 8.23 | 8.19 | 7.86 | 6.96 |
| 12 | 7.83 | 8.03 | 8.22 | 8.26 | 8.6 | 8.64 | 8.36 | 7.79 |
| 14 | 7.97 | 8.19 | 8.44 | 8.54 | 8.85 | 9.1 | 8.83 | 8.19 |
| 16 | 8.04 | 8.27 | 8.61 | 8.81 | 9.06 | 9.48 | 9.38 | 8.52 |
| 20 | 8.15 | 8.34 | 8.78 | 9.28 | 9.55 | 10.03 | 10.67 | 9.35 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.2° | 3.65 | 143.4° | 4.03 |
| 8 | 41.6° | 4.46 | 146.7° | 5.05 |
| 10 | 40.7° | 5.09 | 146.9° | 6.03 |
| 12 | 39.8° | 5.46 | 150.6° | 6.75 |
| 14 | 38.7° | 5.64 | 151.6° | 7.12 |
| 16 | 38.2° | 5.72 | 174.9° | 7.55 |
| 20 | 37.3° | 5.91 | 177.6° | 8.38 |
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