RIC ET RAC
GRE DUFOUR 31Sail number GRE/F7850
GPH
747.4
OSN
724.4
LOA
9.363 m
Displacement
4643 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6052
Medium
0.8262
High
0.9734
Triple Offshore
Low
0.7785
Medium
1.023
High
1.1598
Boat Specifications
Dimensions
- Length overall
- 9.363 m
- Beam
- 3.17 m
- Draft
- 1.79 m
- Displacement
- 4643 kg
- Crew weight
- 443 kg
- Wetted surface
- 20.81 m²
Sails
- Mainsail
- 19.25 m²
- Genoa
- 27.58 m²
- Spinnaker
- 64.15 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- DUFOUR 31
- Builder
- DUFOUR
- Designer
- MICHEL DUFOUR
- Year built
- 1978
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.22 | 4.47 | 4.65 | 4.64 | 4.75 | 4.62 | 4.23 | 3.64 |
| 8 | 4.97 | 5.25 | 5.49 | 5.6 | 5.76 | 5.63 | 5.16 | 4.57 |
| 10 | 5.58 | 5.85 | 6.04 | 6.22 | 6.33 | 6.27 | 5.98 | 5.37 |
| 12 | 5.98 | 6.17 | 6.33 | 6.52 | 6.65 | 6.6 | 6.41 | 6.05 |
| 14 | 6.2 | 6.36 | 6.52 | 6.66 | 6.93 | 6.9 | 6.7 | 6.42 |
| 16 | 6.31 | 6.48 | 6.67 | 6.75 | 7.19 | 7.2 | 7 | 6.69 |
| 20 | 6.36 | 6.57 | 6.9 | 7.09 | 7.47 | 7.7 | 7.59 | 7.25 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44.4° | 2.74 | 148° | 3.15 |
| 8 | 42.3° | 3.29 | 152° | 3.96 |
| 10 | 42° | 3.69 | 152.7° | 4.67 |
| 12 | 41.9° | 4.04 | 159.2° | 5.33 |
| 14 | 40.9° | 4.28 | 180° | 5.92 |
| 16 | 40.6° | 4.39 | 180° | 6.33 |
| 20 | 41° | 4.4 | 180° | 6.86 |
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