BASIC
JPN SEAM 31Sail number JPN/JPN3387
GPH
627.1
OSN
610.6
LOA
9.5 m
Displacement
3166 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6626
Medium
0.8827
High
1.0006
Triple Offshore
Low
0.852
Medium
1.0712
High
1.193
Boat Specifications
Dimensions
- Length overall
- 9.5 m
- Beam
- 3.24 m
- Draft
- 2 m
- Displacement
- 3166 kg
- Crew weight
- 542 kg
- Wetted surface
- 19.48 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
- Stability index
- 112.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.48 | 5.78 | 6.01 | 5.94 | 5.69 | 5.5 | 4.93 | 4.14 |
| 8 | 6.37 | 6.55 | 6.69 | 6.69 | 6.68 | 6.55 | 6.04 | 5.22 |
| 10 | 6.75 | 6.9 | 7.03 | 7.07 | 7.15 | 7.06 | 6.75 | 6.16 |
| 12 | 6.91 | 7.09 | 7.31 | 7.38 | 7.61 | 7.52 | 7.18 | 6.78 |
| 14 | 6.99 | 7.19 | 7.54 | 7.72 | 8.05 | 8.02 | 7.64 | 7.19 |
| 16 | 7.03 | 7.26 | 7.68 | 8.02 | 8.37 | 8.54 | 8.15 | 7.62 |
| 20 | 7.12 | 7.34 | 7.82 | 8.38 | 8.87 | 9.44 | 9.45 | 8.62 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.62 | 144.3° | 3.59 |
| 8 | 40.6° | 4.35 | 149.6° | 4.52 |
| 10 | 38.2° | 4.82 | 152.9° | 5.35 |
| 12 | 37.2° | 5.01 | 161° | 6.05 |
| 14 | 36.6° | 5.09 | 176.6° | 6.63 |
| 16 | 36.6° | 5.13 | 179° | 7.05 |
| 20 | 36.4° | 5.19 | 178.1° | 7.87 |
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