BASIC
JPN SEAM 31Sail number JPN/JPN3387
GPH
623.4
OSN
607.6
LOA
9.5 m
Displacement
3167 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7554
Medium
0.9982
High
1.1291
Triple Offshore
Low
0.9679
Medium
1.2102
High
1.347
Boat Specifications
Dimensions
- Length overall
- 9.5 m
- Beam
- 3.24 m
- Draft
- 2 m
- Displacement
- 3167 kg
- Crew weight
- 542 kg
- Wetted surface
- 19.57 m²
Sails
- Mainsail
- 35.22 m²
- Genoa
- 30.32 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 | 5.57 | 5.85 | 6.05 | 5.99 | 5.67 | 5.49 | 4.94 | 4.17 |
| 8 | 6.45 | 6.62 | 6.73 | 6.71 | 6.66 | 6.53 | 6.04 | 5.22 |
| 10 | 6.79 | 6.93 | 7.07 | 7.08 | 7.15 | 7.05 | 6.74 | 6.15 |
| 12 | 6.93 | 7.11 | 7.34 | 7.43 | 7.61 | 7.5 | 7.16 | 6.77 |
| 14 | 7 | 7.21 | 7.56 | 7.76 | 8.06 | 8.01 | 7.61 | 7.17 |
| 16 | 7.04 | 7.26 | 7.68 | 8.04 | 8.39 | 8.53 | 8.12 | 7.59 |
| 20 | 7.13 | 7.35 | 7.8 | 8.36 | 8.92 | 9.49 | 9.4 | 8.56 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.71 | 145° | 3.61 |
| 8 | 40.2° | 4.44 | 149.8° | 4.52 |
| 10 | 37.8° | 4.88 | 152.7° | 5.34 |
| 12 | 36.8° | 5.04 | 162.1° | 6.04 |
| 14 | 36.4° | 5.12 | 180° | 6.64 |
| 16 | 36.3° | 5.15 | 180° | 7.05 |
| 20 | 36.2° | 5.21 | 180° | 7.86 |
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