UMI
ESP FIRST 31.7Sail number ESP/ESP7145
GPH
664.4
OSN
644.4
LOA
9.61 m
Displacement
4001 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.611
Medium
0.8312
High
0.9502
Triple Offshore
Low
0.7876
Medium
1.0214
High
1.1361
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
- 21.99 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 | 4.96 | 5.24 | 5.46 | 5.4 | 5.25 | 5.09 | 4.59 | 3.89 |
| 8 | 5.89 | 6.16 | 6.35 | 6.33 | 6.36 | 6.21 | 5.68 | 4.95 |
| 10 | 6.48 | 6.67 | 6.81 | 6.84 | 6.96 | 6.88 | 6.54 | 5.87 |
| 12 | 6.71 | 6.89 | 7.07 | 7.13 | 7.33 | 7.28 | 7.02 | 6.6 |
| 14 | 6.79 | 6.98 | 7.25 | 7.39 | 7.68 | 7.69 | 7.41 | 7.04 |
| 16 | 6.83 | 7.03 | 7.35 | 7.63 | 7.92 | 8.11 | 7.85 | 7.4 |
| 20 | 6.86 | 7.06 | 7.43 | 7.94 | 8.29 | 8.71 | 8.85 | 8.26 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.26 | 146° | 3.36 |
| 8 | 41.2° | 3.94 | 150.2° | 4.29 |
| 10 | 40.6° | 4.44 | 152° | 5.09 |
| 12 | 39.4° | 4.68 | 157.4° | 5.81 |
| 14 | 39° | 4.77 | 170° | 6.41 |
| 16 | 38.8° | 4.81 | 178.4° | 6.88 |
| 20 | 39° | 4.83 | 178.1° | 7.59 |
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