ADRA
GRE FIRST 31.7Sail number GRE/GRE1221
GPH
676.2
OSN
652.7
LOA
9.61 m
Displacement
3845 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5931
Medium
0.8203
High
0.9506
Triple Offshore
Low
0.7633
Medium
1.008
High
1.1347
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.94 m
- Displacement
- 3845 kg
- Crew weight
- 420 kg
- Wetted surface
- 21.95 m²
Sails
- Mainsail
- 25.06 m²
- Genoa
- 25.7 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 | 4.82 | 5.07 | 5.22 | 5.09 | 5.13 | 4.96 | 4.43 | 3.73 |
| 8 | 5.72 | 5.96 | 6.12 | 6.1 | 6.22 | 6.07 | 5.53 | 4.8 |
| 10 | 6.32 | 6.51 | 6.66 | 6.74 | 6.87 | 6.78 | 6.39 | 5.73 |
| 12 | 6.65 | 6.82 | 6.98 | 7.07 | 7.28 | 7.22 | 6.94 | 6.46 |
| 14 | 6.82 | 7 | 7.21 | 7.27 | 7.63 | 7.6 | 7.34 | 6.95 |
| 16 | 6.88 | 7.09 | 7.38 | 7.51 | 7.92 | 7.97 | 7.73 | 7.32 |
| 20 | 6.93 | 7.16 | 7.55 | 7.89 | 8.27 | 8.66 | 8.57 | 8.07 |
| 24 | 6.89 | 7.14 | 7.62 | 8.1 | 8.5 | 9.11 | 9.72 | 8.96 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.4° | 3.17 | 145.1° | 3.23 |
| 8 | 41° | 3.87 | 149.2° | 4.16 |
| 10 | 39.5° | 4.37 | 152.1° | 4.97 |
| 12 | 38.5° | 4.69 | 157.4° | 5.67 |
| 14 | 38.1° | 4.82 | 168.2° | 6.27 |
| 16 | 38° | 4.88 | 177.2° | 6.77 |
| 20 | 38.3° | 4.89 | 178.1° | 7.49 |
| 24 | 39.5° | 4.78 | 177.9° | 8.19 |
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