Ilona Tuulikki
FIN IW 31Sail number FIN/FIN6313
GPH
727.6
OSN
705.7
LOA
9.345 m
Displacement
3745 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.573
Medium
0.7631
High
0.8665
Triple Offshore
Low
0.7283
Medium
0.928
High
1.0224
Boat Specifications
Dimensions
- Length overall
- 9.345 m
- Beam
- 2.68 m
- Draft
- 1.69 m
- Displacement
- 3745 kg
- Crew weight
- 350 kg
- Wetted surface
- 18 m²
Sails
- Mainsail
- 17.83 m²
- Genoa
- 28.87 m²
- Spinnaker
- 59.56 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- IW 31
- Builder
- IW Varvet
- Designer
- Sparkman&Stephens
- Year built
- 1975
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.6 | 4.81 | 4.93 | 4.83 | 4.84 | 4.7 | 4.28 | 3.68 |
| 8 | 5.35 | 5.54 | 5.67 | 5.62 | 5.76 | 5.65 | 5.24 | 4.64 |
| 10 | 5.81 | 5.97 | 6.1 | 6.13 | 6.28 | 6.22 | 5.95 | 5.44 |
| 12 | 6.06 | 6.2 | 6.35 | 6.37 | 6.59 | 6.57 | 6.38 | 6.03 |
| 14 | 6.17 | 6.33 | 6.51 | 6.58 | 6.81 | 6.85 | 6.7 | 6.4 |
| 16 | 6.23 | 6.39 | 6.62 | 6.74 | 6.97 | 7.08 | 6.98 | 6.69 |
| 20 | 6.26 | 6.44 | 6.71 | 6.96 | 7.2 | 7.48 | 7.52 | 7.22 |
| 24 | 6.26 | 6.46 | 6.77 | 7.09 | 7.29 | 7.74 | 8.1 | 7.77 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.06 | 146.7° | 3.18 |
| 8 | 40.5° | 3.65 | 150.9° | 4.02 |
| 10 | 39.5° | 4.05 | 153.8° | 4.73 |
| 12 | 39° | 4.27 | 160.8° | 5.34 |
| 14 | 38.8° | 4.36 | 174.1° | 5.87 |
| 16 | 38.7° | 4.41 | 178.1° | 6.27 |
| 20 | 39.1° | 4.41 | 179° | 6.82 |
| 24 | 40° | 4.37 | 178.8° | 7.31 |
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