AMALFI
JPN YAMAHA 31SSail number JPN/JPN5305
GPH
647.9
OSN
631.6
LOA
9.49 m
Displacement
3210 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7259
Medium
0.9619
High
1.087
Triple Offshore
Low
0.9302
Medium
1.1659
High
1.2906
Boat Specifications
Dimensions
- Length overall
- 9.49 m
- Beam
- 3.2 m
- Draft
- 1.84 m
- Displacement
- 3210 kg
- Crew weight
- 490 kg
- Wetted surface
- 18.41 m²
Sails
- Mainsail
- 31.79 m²
- Genoa
- 30.42 m²
- Spinnaker
- 57.72 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- YAMAHA 31S
- Builder
- YAMAHA
- Designer
- YAMAHA
- Year built
- 1990
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.32 | 5.59 | 5.81 | 5.74 | 5.44 | 5.26 | 4.76 | 4.04 |
| 8 | 6.21 | 6.38 | 6.5 | 6.49 | 6.43 | 6.3 | 5.82 | 5.06 |
| 10 | 6.56 | 6.7 | 6.83 | 6.84 | 6.9 | 6.81 | 6.53 | 5.95 |
| 12 | 6.71 | 6.88 | 7.07 | 7.14 | 7.29 | 7.2 | 6.92 | 6.57 |
| 14 | 6.79 | 6.98 | 7.28 | 7.42 | 7.68 | 7.62 | 7.31 | 6.94 |
| 16 | 6.83 | 7.05 | 7.41 | 7.66 | 8 | 8.03 | 7.72 | 7.3 |
| 20 | 6.86 | 7.09 | 7.54 | 8 | 8.38 | 8.78 | 8.62 | 8.08 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.4° | 3.54 | 146.3° | 3.5 |
| 8 | 40.9° | 4.23 | 150.8° | 4.38 |
| 10 | 38.8° | 4.66 | 152.8° | 5.18 |
| 12 | 37.8° | 4.84 | 163.2° | 5.87 |
| 14 | 37.4° | 4.92 | 180° | 6.46 |
| 16 | 37.3° | 4.95 | 180° | 6.84 |
| 20 | 37.2° | 4.98 | 180° | 7.55 |
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