J-Rover
NED J-39Sail number NED/NED5375
GPH
595.7
OSN
578.9
LOA
12.009 m
Displacement
5663 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6914
Medium
0.9278
High
1.0599
Triple Offshore
Low
0.8879
Medium
1.1336
High
1.2621
Boat Specifications
Dimensions
- Length overall
- 12.009 m
- Beam
- 3.77 m
- Draft
- 2.17 m
- Displacement
- 5663 kg
- Crew weight
- 525 kg
- Wetted surface
- 28.62 m²
Sails
- Mainsail
- 41.2 m²
- Genoa
- 39.09 m²
- Spinnaker
- 114.86 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-39
- Builder
- J-Boats
- Designer
- R.Johnstone
- Year built
- 1991
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.57 | 5.86 | 6.09 | 6.02 | 5.93 | 5.79 | 5.24 | 4.44 |
| 8 | 6.61 | 6.86 | 7.03 | 7 | 7.11 | 7 | 6.48 | 5.57 |
| 10 | 7.16 | 7.33 | 7.47 | 7.48 | 7.67 | 7.62 | 7.32 | 6.58 |
| 12 | 7.37 | 7.55 | 7.74 | 7.8 | 8.06 | 8.08 | 7.79 | 7.32 |
| 14 | 7.45 | 7.65 | 7.96 | 8.1 | 8.33 | 8.54 | 8.28 | 7.76 |
| 16 | 7.5 | 7.72 | 8.1 | 8.37 | 8.57 | 8.9 | 8.79 | 8.21 |
| 20 | 7.63 | 7.84 | 8.24 | 8.76 | 8.96 | 9.43 | 9.96 | 9.21 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.68 | 142.5° | 3.84 |
| 8 | 40.9° | 4.45 | 148° | 4.82 |
| 10 | 39.8° | 4.99 | 150.5° | 5.7 |
| 12 | 38.2° | 5.23 | 156.5° | 6.43 |
| 14 | 37.7° | 5.33 | 174° | 7.03 |
| 16 | 37.5° | 5.39 | 180° | 7.54 |
| 20 | 37.5° | 5.51 | 180° | 8.39 |
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