ADRA
GRE FIRST 31.7Sail number GRE/GRE1221
GPH
671.5
OSN
650.2
LOA
9.61 m
Displacement
3846 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5963
Medium
0.8226
High
0.9532
Triple Offshore
Low
0.7701
Medium
1.0136
High
1.1419
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.94 m
- Displacement
- 3846 kg
- Crew weight
- 480 kg
- Wetted surface
- 22.27 m²
Sails
- Mainsail
- 25.66 m²
- Genoa
- 26.56 m²
- Spinnaker
- 61.39 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 | 4.83 | 5.1 | 5.31 | 5.23 | 5.2 | 5.04 | 4.54 | 3.83 |
| 8 | 5.72 | 6 | 6.23 | 6.2 | 6.31 | 6.15 | 5.6 | 4.87 |
| 10 | 6.36 | 6.57 | 6.73 | 6.83 | 6.93 | 6.84 | 6.48 | 5.77 |
| 12 | 6.7 | 6.87 | 7.02 | 7.14 | 7.3 | 7.24 | 6.97 | 6.53 |
| 14 | 6.85 | 7.03 | 7.23 | 7.31 | 7.68 | 7.63 | 7.34 | 6.97 |
| 16 | 6.9 | 7.1 | 7.41 | 7.56 | 8.03 | 8.06 | 7.75 | 7.31 |
| 20 | 6.91 | 7.13 | 7.56 | 8.01 | 8.43 | 8.86 | 8.68 | 8.1 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.8° | 3.15 | 146° | 3.32 |
| 8 | 41.2° | 3.81 | 150° | 4.22 |
| 10 | 40.5° | 4.33 | 152° | 5.01 |
| 12 | 39.4° | 4.7 | 157° | 5.72 |
| 14 | 38.6° | 4.84 | 180° | 6.35 |
| 16 | 38.2° | 4.9 | 180° | 6.84 |
| 20 | 39° | 4.84 | 180° | 7.52 |
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