UMI
ESP FIRST 31.7Sail number ESP/ESP7145
GPH
663.7
OSN
643.7
LOA
9.61 m
Displacement
4001 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6174
Medium
0.8318
High
0.947
Triple Offshore
Low
0.7926
Medium
1.0205
High
1.1323
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.94 m
- Displacement
- 4001 kg
- Crew weight
- 350 kg
- Wetted surface
- 21.98 m²
Sails
- Mainsail
- 26.36 m²
- Genoa
- 31.63 m²
- Spinnaker
- 64.1 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT
- Year built
- 1998
- Stability index
- 109.8
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.09 | 5.33 | 5.5 | 5.39 | 5.22 | 5.06 | 4.55 | 3.84 |
| 8 | 5.96 | 6.18 | 6.33 | 6.28 | 6.3 | 6.17 | 5.65 | 4.92 |
| 10 | 6.46 | 6.64 | 6.79 | 6.8 | 6.92 | 6.85 | 6.49 | 5.84 |
| 12 | 6.68 | 6.88 | 7.06 | 7.12 | 7.31 | 7.28 | 7.01 | 6.56 |
| 14 | 6.78 | 6.98 | 7.25 | 7.37 | 7.64 | 7.67 | 7.42 | 7.03 |
| 16 | 6.83 | 7.04 | 7.36 | 7.59 | 7.89 | 8.02 | 7.83 | 7.41 |
| 20 | 6.86 | 7.09 | 7.47 | 7.88 | 8.22 | 8.61 | 8.69 | 8.2 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.36 | 145.2° | 3.32 |
| 8 | 40.6° | 4.05 | 149.6° | 4.26 |
| 10 | 39.3° | 4.49 | 153.2° | 5.07 |
| 12 | 38.8° | 4.68 | 158.2° | 5.77 |
| 14 | 38.4° | 4.77 | 170° | 6.37 |
| 16 | 38.4° | 4.81 | 177.2° | 6.86 |
| 20 | 38.8° | 4.79 | 178.1° | 7.59 |
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