BASIC
JPN SEAM 31Sail number JPN/JPN3387
GPH
621
OSN
604.5
LOA
9.5 m
Displacement
3167 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.678
Medium
0.8932
High
1.0105
Triple Offshore
Low
0.8672
Medium
1.079
High
1.1941
Boat Specifications
Dimensions
- Length overall
- 9.5 m
- Beam
- 3.24 m
- Draft
- 2 m
- Displacement
- 3167 kg
- Crew weight
- 528 kg
- Wetted surface
- 19.58 m²
Sails
- Mainsail
- 35.93 m²
- Genoa
- 26.99 m²
- Spinnaker
- 61.47 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- SEAM 31
- Builder
- TSUBOI YACHT
- Designer
- I.YOKOYAMA
- Year built
- 1999
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.69 | 5.94 | 6.09 | 5.98 | 5.72 | 5.53 | 4.95 | 4.13 |
| 8 | 6.48 | 6.64 | 6.74 | 6.71 | 6.69 | 6.55 | 6.06 | 5.24 |
| 10 | 6.81 | 6.95 | 7.08 | 7.1 | 7.19 | 7.1 | 6.76 | 6.17 |
| 12 | 6.95 | 7.11 | 7.32 | 7.4 | 7.58 | 7.54 | 7.22 | 6.79 |
| 14 | 7.03 | 7.21 | 7.49 | 7.66 | 7.93 | 7.95 | 7.66 | 7.22 |
| 16 | 7.09 | 7.28 | 7.6 | 7.88 | 8.23 | 8.38 | 8.12 | 7.64 |
| 20 | 7.16 | 7.38 | 7.78 | 8.21 | 8.7 | 9.28 | 9.3 | 8.58 |
| 24 | 7.17 | 7.42 | 7.88 | 8.45 | 9 | 10.1 | 11.64 | 10.02 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.7° | 3.8 | 140.6° | 3.58 |
| 8 | 39.4° | 4.53 | 148.7° | 4.54 |
| 10 | 37° | 4.93 | 153.3° | 5.36 |
| 12 | 36.1° | 5.09 | 161.4° | 6.05 |
| 14 | 35.8° | 5.17 | 175.8° | 6.64 |
| 16 | 35.6° | 5.22 | 178.6° | 7.07 |
| 20 | 35.6° | 5.26 | 179° | 7.86 |
| 24 | 36.9° | 5.19 | 175.7° | 8.78 |
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