ADRA
GRE FIRST 31.7Sail number GRE/GRE1221
GPH
671.7
OSN
650.3
LOA
9.49 m
Displacement
3830 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6747
Medium
0.9275
High
1.0694
Triple Offshore
Low
0.8679
Medium
1.1398
High
1.2777
Boat Specifications
Dimensions
- Length overall
- 9.49 m
- Beam
- 3.22 m
- Draft
- 1.93 m
- Displacement
- 3830 kg
- Crew weight
- 470 kg
- Wetted surface
- 22.23 m²
Sails
- Mainsail
- 25.94 m²
- Genoa
- 28.06 m²
- Spinnaker
- 61.13 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 | 5.08 | 5.27 | 5.21 | 5.16 | 5 | 4.52 | 3.83 |
| 8 | 5.75 | 6.02 | 6.21 | 6.18 | 6.27 | 6.11 | 5.57 | 4.86 |
| 10 | 6.4 | 6.59 | 6.73 | 6.81 | 6.89 | 6.8 | 6.44 | 5.75 |
| 12 | 6.7 | 6.86 | 7.01 | 7.1 | 7.27 | 7.19 | 6.93 | 6.5 |
| 14 | 6.81 | 6.99 | 7.21 | 7.3 | 7.63 | 7.58 | 7.29 | 6.94 |
| 16 | 6.86 | 7.05 | 7.36 | 7.55 | 7.94 | 8 | 7.68 | 7.27 |
| 20 | 6.86 | 7.08 | 7.47 | 7.93 | 8.32 | 8.74 | 8.6 | 8.04 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.3° | 3.19 | 146.4° | 3.31 |
| 8 | 40.7° | 3.86 | 150.5° | 4.21 |
| 10 | 40.1° | 4.39 | 152.3° | 4.99 |
| 12 | 39° | 4.72 | 157.3° | 5.71 |
| 14 | 38.3° | 4.83 | 180° | 6.33 |
| 16 | 38.1° | 4.87 | 180° | 6.81 |
| 20 | 38.6° | 4.85 | 180° | 7.48 |
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