J-Rover
NED J-39Sail number NED/NED5375
GPH
596.2
OSN
579.1
LOA
12.009 m
Displacement
5663 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7766
Medium
1.0436
High
1.1942
Triple Offshore
Low
0.9964
Medium
1.275
High
1.4211
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 | 5.55 | 5.83 | 6.05 | 5.95 | 5.9 | 5.76 | 5.22 | 4.42 |
| 8 | 6.62 | 6.86 | 7.03 | 6.98 | 7.11 | 6.98 | 6.45 | 5.55 |
| 10 | 7.16 | 7.33 | 7.48 | 7.48 | 7.67 | 7.61 | 7.3 | 6.57 |
| 12 | 7.37 | 7.55 | 7.75 | 7.8 | 8.06 | 8.07 | 7.78 | 7.31 |
| 14 | 7.46 | 7.66 | 7.96 | 8.1 | 8.32 | 8.53 | 8.25 | 7.75 |
| 16 | 7.51 | 7.73 | 8.12 | 8.38 | 8.55 | 8.9 | 8.78 | 8.19 |
| 20 | 7.65 | 7.86 | 8.26 | 8.77 | 8.96 | 9.43 | 9.93 | 9.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.9° | 3.68 | 142.3° | 3.82 |
| 8 | 40.7° | 4.45 | 148° | 4.81 |
| 10 | 39.5° | 5 | 150.4° | 5.69 |
| 12 | 38.2° | 5.23 | 156.5° | 6.42 |
| 14 | 37.9° | 5.34 | 173.2° | 7.02 |
| 16 | 37.6° | 5.4 | 180° | 7.53 |
| 20 | 37.1° | 5.55 | 180° | 8.37 |
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