BASIC
JPN SEAM 31Sail number JPN/JPN3387
GPH
621.6
OSN
607.1
LOA
9.5 m
Displacement
3167 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6747
Medium
0.8869
High
1.0006
Triple Offshore
Low
0.8664
Medium
1.0769
High
1.1964
Boat Specifications
Dimensions
- Length overall
- 9.5 m
- Beam
- 3.24 m
- Draft
- 2 m
- Displacement
- 3167 kg
- Crew weight
- 542 kg
- Wetted surface
- 19.49 m²
Sails
- Mainsail
- 35.93 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 | 5.62 | 5.92 | 6.15 | 6.11 | 5.74 | 5.55 | 4.99 | 4.2 |
| 8 | 6.46 | 6.63 | 6.76 | 6.77 | 6.7 | 6.58 | 6.09 | 5.26 |
| 10 | 6.79 | 6.94 | 7.08 | 7.12 | 7.17 | 7.08 | 6.77 | 6.17 |
| 12 | 6.92 | 7.1 | 7.35 | 7.45 | 7.63 | 7.55 | 7.2 | 6.8 |
| 14 | 6.99 | 7.19 | 7.56 | 7.78 | 8.08 | 8.05 | 7.66 | 7.19 |
| 16 | 7.03 | 7.25 | 7.68 | 8.06 | 8.41 | 8.58 | 8.17 | 7.62 |
| 20 | 7.11 | 7.34 | 7.78 | 8.36 | 8.93 | 9.52 | 9.48 | 8.62 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.73 | 145° | 3.64 |
| 8 | 40.5° | 4.44 | 149.5° | 4.55 |
| 10 | 37.9° | 4.86 | 153° | 5.37 |
| 12 | 37.1° | 5.02 | 162° | 6.06 |
| 14 | 36.8° | 5.09 | 180° | 6.66 |
| 16 | 36.8° | 5.11 | 180° | 7.07 |
| 20 | 36.8° | 5.16 | 180° | 7.9 |
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