UMI
ESP FIRST 31.7Sail number ESP/ESP7145
GPH
668.1
OSN
649.2
LOA
9.49 m
Displacement
3998 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6103
Medium
0.8255
High
0.9422
Triple Offshore
Low
0.7855
Medium
1.0142
High
1.1266
Boat Specifications
Dimensions
- Length overall
- 9.49 m
- Beam
- 3.22 m
- Draft
- 1.94 m
- Displacement
- 3998 kg
- Crew weight
- 350 kg
- Wetted surface
- 22.6 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
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.95 | 5.22 | 5.44 | 5.39 | 5.23 | 5.08 | 4.6 | 3.9 |
| 8 | 5.84 | 6.11 | 6.31 | 6.29 | 6.31 | 6.17 | 5.65 | 4.93 |
| 10 | 6.43 | 6.62 | 6.76 | 6.79 | 6.9 | 6.83 | 6.49 | 5.82 |
| 12 | 6.67 | 6.85 | 7.01 | 7.07 | 7.26 | 7.21 | 6.96 | 6.54 |
| 14 | 6.75 | 6.94 | 7.19 | 7.3 | 7.59 | 7.58 | 7.31 | 6.96 |
| 16 | 6.79 | 6.99 | 7.29 | 7.53 | 7.83 | 7.98 | 7.72 | 7.29 |
| 20 | 6.8 | 7 | 7.36 | 7.84 | 8.19 | 8.57 | 8.62 | 8.07 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.26 | 146° | 3.37 |
| 8 | 40.5° | 3.92 | 150° | 4.27 |
| 10 | 40.1° | 4.41 | 152.5° | 5.05 |
| 12 | 39.4° | 4.66 | 158° | 5.75 |
| 14 | 39° | 4.75 | 180° | 6.37 |
| 16 | 39° | 4.78 | 180° | 6.84 |
| 20 | 39.2° | 4.77 | 180° | 7.5 |
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