FORCE 7
FRA FIRST 31.7 DKSail number FRA/FRA39048
GPH
668.2
OSN
647
LOA
9.61 m
Displacement
3770 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5912
Medium
0.8243
High
0.9618
Triple Offshore
Low
0.7714
Medium
1.0196
High
1.1545
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.94 m
- Displacement
- 3770 kg
- Crew weight
- 583 kg
- Wetted surface
- 21.94 m²
Sails
- Mainsail
- 25.76 m²
- Genoa
- 26.05 m²
- Spinnaker
- 66.56 m²
- Asymmetric spinnaker
- 50.26 m²
Design
- Type
- FIRST 31.7 DK
- Builder
- BENETEAU SA
- Designer
- FINOT Jean Marie
- Year built
- 1990
- Stability index
- 109
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.75 | 5.02 | 5.38 | 5.57 | 5.33 | 5.06 | 4.56 | 3.83 |
| 8 | 5.68 | 5.97 | 6.37 | 6.56 | 6.39 | 6.2 | 5.64 | 4.89 |
| 10 | 6.34 | 6.55 | 6.86 | 7.03 | 6.96 | 6.88 | 6.54 | 5.83 |
| 12 | 6.7 | 6.86 | 7.12 | 7.36 | 7.35 | 7.28 | 7.03 | 6.6 |
| 14 | 6.88 | 7.05 | 7.25 | 7.66 | 7.75 | 7.71 | 7.41 | 7.04 |
| 16 | 6.94 | 7.14 | 7.44 | 7.87 | 8.12 | 8.16 | 7.85 | 7.39 |
| 20 | 6.97 | 7.2 | 7.64 | 8.14 | 8.88 | 9.03 | 8.85 | 8.23 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 3.09 | 146° | 3.31 |
| 8 | 42.3° | 3.76 | 150.2° | 4.23 |
| 10 | 41.2° | 4.29 | 151.1° | 5.05 |
| 12 | 39.4° | 4.7 | 156.9° | 5.8 |
| 14 | 38.7° | 4.87 | 169.4° | 6.39 |
| 16 | 38.2° | 4.94 | 177.2° | 6.86 |
| 20 | 38.7° | 4.93 | 178.4° | 7.56 |
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