JOJO
GER J-88Sail number GER/GER8139
GPH
617.1
OSN
600.3
LOA
8.96 m
Displacement
2263 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6674
Medium
0.8871
High
1.0088
Triple Offshore
Low
0.8593
Medium
1.0909
High
1.2322
Boat Specifications
Dimensions
- Length overall
- 8.96 m
- Beam
- 2.85 m
- Draft
- 1.96 m
- Displacement
- 2263 kg
- Crew weight
- 525 kg
- Wetted surface
- 17.47 m²
Sails
- Mainsail
- 26.81 m²
- Genoa
- 20.1 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 89.08 m²
Design
- Type
- J-88
- Builder
- J-BOAT
- Designer
- R-JOHNSTONE
- Year built
- 2013
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 | 5.25 | 5.54 | 5.76 | 5.89 | 6.02 | 5.87 | 5.22 | 4.41 |
| 8 | 6.24 | 6.47 | 6.63 | 6.8 | 6.94 | 6.87 | 6.48 | 5.55 |
| 10 | 6.74 | 6.89 | 7.03 | 7.08 | 7.51 | 7.48 | 7.13 | 6.5 |
| 12 | 6.94 | 7.14 | 7.39 | 7.43 | 7.92 | 8.15 | 7.76 | 7.05 |
| 14 | 7.02 | 7.27 | 7.71 | 7.88 | 8.26 | 8.69 | 8.51 | 7.53 |
| 16 | 7.06 | 7.35 | 7.89 | 8.31 | 8.63 | 9.16 | 9.43 | 8.14 |
| 20 | 7.18 | 7.48 | 8.04 | 8.83 | 9.4 | 10.07 | 11.49 | 10.18 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.8° | 3.44 | 144° | 3.82 |
| 8 | 41.2° | 4.19 | 146.5° | 4.81 |
| 10 | 39° | 4.76 | 149.5° | 5.63 |
| 12 | 37.9° | 4.98 | 151° | 6.12 |
| 14 | 37.5° | 5.05 | 147.2° | 6.52 |
| 16 | 37.5° | 5.07 | 144.8° | 7.05 |
| 20 | 37.3° | 5.14 | 141° | 8.81 |
Loading polar chart…