J-CURVE
USA J-122Sail number USA/USA61220
GPH
575.2
OSN
562.4
LOA
12.2 m
Displacement
7450 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7094
Medium
0.9473
High
1.0663
Triple Offshore
Low
0.924
Medium
1.1725
High
1.2949
Boat Specifications
Dimensions
- Length overall
- 12.2 m
- Beam
- 3.64 m
- Draft
- 2.24 m
- Displacement
- 7450 kg
- Crew weight
- 797 kg
- Wetted surface
- 33.05 m²
Sails
- Mainsail
- 51.07 m²
- Genoa
- 42.82 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 155.89 m²
Design
- Type
- J-122
- Builder
- J BOATS
- Designer
- ALAN JOHNSTONE
- Year built
- 2007
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.65 | 5.98 | 6.46 | 6.71 | 6.51 | 6.18 | 5.52 | 4.66 |
| 8 | 6.72 | 7.02 | 7.44 | 7.64 | 7.54 | 7.38 | 6.85 | 5.83 |
| 10 | 7.37 | 7.57 | 7.78 | 8.04 | 8.03 | 7.97 | 7.68 | 6.88 |
| 12 | 7.62 | 7.82 | 8.01 | 8.3 | 8.45 | 8.43 | 8.14 | 7.61 |
| 14 | 7.72 | 7.92 | 8.21 | 8.49 | 8.89 | 8.89 | 8.63 | 7.96 |
| 16 | 7.76 | 7.98 | 8.34 | 8.66 | 9.28 | 9.24 | 9.19 | 8.3 |
| 20 | 7.87 | 8.07 | 8.45 | 9.01 | 9.81 | 10.18 | 10.52 | 9.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.8° | 3.69 | 143.5° | 4.04 |
| 8 | 41.2° | 4.48 | 147° | 5.04 |
| 10 | 40.5° | 5.06 | 148.5° | 5.96 |
| 12 | 39.4° | 5.33 | 151° | 6.59 |
| 14 | 38.6° | 5.45 | 152.5° | 6.93 |
| 16 | 38.2° | 5.51 | 176° | 7.44 |
| 20 | 38.2° | 5.63 | 178° | 8.21 |
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