IDRA
ESP FIRST 31.7Sail number ESP/ESP11072_C
GPH
653.4
OSN
631.7
LOA
9.61 m
Displacement
3712 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.619
Medium
0.8472
High
0.9809
Triple Offshore
Low
0.7969
Medium
1.0389
High
1.1724
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.92 m
- Displacement
- 3712 kg
- Crew weight
- 592 kg
- Wetted surface
- 22.14 m²
Sails
- Mainsail
- 26.64 m²
- Genoa
- 31.51 m²
- Spinnaker
- 70.66 m²
- Asymmetric spinnaker
- 70.66 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT
- Year built
- 1998
- Stability index
- 115.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.06 | 5.34 | 5.51 | 5.39 | 5.33 | 5.15 | 4.62 | 3.92 |
| 8 | 5.98 | 6.22 | 6.38 | 6.33 | 6.43 | 6.27 | 5.76 | 5 |
| 10 | 6.53 | 6.7 | 6.84 | 6.92 | 7.03 | 6.94 | 6.6 | 5.89 |
| 12 | 6.82 | 6.98 | 7.14 | 7.28 | 7.47 | 7.4 | 7.1 | 6.64 |
| 14 | 6.98 | 7.16 | 7.39 | 7.51 | 7.88 | 7.84 | 7.53 | 7.1 |
| 16 | 7.05 | 7.26 | 7.58 | 7.74 | 8.24 | 8.28 | 7.97 | 7.49 |
| 20 | 7.12 | 7.36 | 7.79 | 8.17 | 8.8 | 9.22 | 8.96 | 8.31 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.8° | 3.31 | 144.3° | 3.39 |
| 8 | 41.2° | 4.03 | 146.9° | 4.33 |
| 10 | 39.6° | 4.54 | 151.4° | 5.11 |
| 12 | 38.1° | 4.85 | 157.7° | 5.84 |
| 14 | 37.5° | 4.99 | 170° | 6.43 |
| 16 | 37° | 5.06 | 177.2° | 6.91 |
| 20 | 37.2° | 5.1 | 177.2° | 7.66 |
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