Jaakko II
FIN Inferno 31Sail number FIN/FIN8256
GPH
674.4
OSN
659.3
LOA
9.45 m
Displacement
4392 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6312
Medium
0.8173
High
0.9165
Triple Offshore
Low
0.8061
Medium
0.9907
High
1.0797
Boat Specifications
Dimensions
- Length overall
- 9.45 m
- Beam
- 3.02 m
- Draft
- 1.63 m
- Displacement
- 4392 kg
- Crew weight
- 400 kg
- Wetted surface
- 20.3 m²
Sails
- Mainsail
- 32.6 m²
- Genoa
- 33.33 m²
- Spinnaker
- 62.5 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Inferno 31
- Designer
- Håkan Södergren
- Year built
- 1982
- Stability index
- 126.2
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.26 | 5.5 | 5.65 | 5.57 | 5.32 | 5.15 | 4.65 | 3.93 |
| 8 | 5.97 | 6.14 | 6.26 | 6.25 | 6.21 | 6.09 | 5.64 | 4.96 |
| 10 | 6.28 | 6.43 | 6.56 | 6.59 | 6.66 | 6.6 | 6.32 | 5.8 |
| 12 | 6.42 | 6.58 | 6.75 | 6.82 | 6.95 | 6.92 | 6.72 | 6.38 |
| 14 | 6.49 | 6.65 | 6.87 | 7 | 7.2 | 7.21 | 7.03 | 6.74 |
| 16 | 6.54 | 6.71 | 6.95 | 7.15 | 7.42 | 7.48 | 7.34 | 7.05 |
| 20 | 6.58 | 6.76 | 7.05 | 7.35 | 7.7 | 8.02 | 8 | 7.65 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.5 | 145.7° | 3.4 |
| 8 | 40.5° | 4.09 | 151.6° | 4.3 |
| 10 | 39.9° | 4.38 | 155° | 5.06 |
| 12 | 39.3° | 4.52 | 164.6° | 5.72 |
| 14 | 39° | 4.6 | 177.2° | 6.27 |
| 16 | 38.8° | 4.65 | 179° | 6.65 |
| 20 | 39° | 4.66 | 179° | 7.23 |
Loading polar chart…