ROCKY
USA J 105Sail number USA/USA378
GPH
601.3
OSN
583.9
LOA
10.57 m
Displacement
3953 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6836
Medium
0.915
High
1.0307
Triple Offshore
Low
0.8791
Medium
1.1234
High
1.2529
Boat Specifications
Dimensions
- Length overall
- 10.57 m
- Beam
- 3.34 m
- Draft
- 2.01 m
- Displacement
- 3953 kg
- Crew weight
- 550 kg
- Wetted surface
- 24.68 m²
Sails
- Mainsail
- 34.38 m²
- Genoa
- 38.84 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 109.91 m²
Design
- Type
- J 105
- Builder
- TILLOTSON-PEARSON
- Designer
- JOHNSTONE
- Year built
- 1991
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.62 | 5.89 | 6.06 | 5.98 | 5.89 | 5.73 | 5.06 | 4.27 |
| 8 | 6.59 | 6.79 | 6.9 | 6.97 | 7 | 6.9 | 6.37 | 5.43 |
| 10 | 7.07 | 7.22 | 7.34 | 7.47 | 7.58 | 7.54 | 7.22 | 6.44 |
| 12 | 7.28 | 7.46 | 7.64 | 7.82 | 8.02 | 8.07 | 7.78 | 7.17 |
| 14 | 7.39 | 7.58 | 7.87 | 8.05 | 8.39 | 8.56 | 8.33 | 7.57 |
| 16 | 7.45 | 7.67 | 8.01 | 8.27 | 8.81 | 9.04 | 8.93 | 7.95 |
| 20 | 7.55 | 7.79 | 8.22 | 8.65 | 9.57 | 10 | 10.58 | 9.07 |
| 24 | 7.57 | 7.85 | 8.36 | 8.93 | 10.29 | 11.61 | 13.24 | 12 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.7° | 3.7 | 143.1° | 3.7 |
| 8 | 40.6° | 4.51 | 147.1° | 4.7 |
| 10 | 38.3° | 5.02 | 147.6° | 5.58 |
| 12 | 37° | 5.25 | 150.1° | 6.21 |
| 14 | 36.4° | 5.37 | 148.9° | 6.56 |
| 16 | 36.3° | 5.43 | 173.4° | 6.98 |
| 20 | 36.1° | 5.5 | 142.1° | 7.85 |
| 24 | 36.8° | 5.48 | 141.8° | 10.4 |
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