BALANGUERA
ESP DUFOUR 31Sail number ESP/ESP9653
GPH
732.2
OSN
710.6
LOA
9.32 m
Displacement
4480 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6234
Medium
0.8458
High
0.9872
Triple Offshore
Low
0.8011
Medium
1.0415
High
1.1733
Boat Specifications
Dimensions
- Length overall
- 9.32 m
- Beam
- 3.29 m
- Draft
- 1.77 m
- Displacement
- 4480 kg
- Crew weight
- 450 kg
- Wetted surface
- 20.25 m²
Sails
- Mainsail
- 19.84 m²
- Genoa
- 29.31 m²
- Spinnaker
- 63.52 m²
- Asymmetric spinnaker
- 61.84 m²
Design
- Type
- DUFOUR 31
- Builder
- DUFOUR
- Designer
- DUFOUR
- Year built
- 1977
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.39 | 4.63 | 4.82 | 4.8 | 4.86 | 4.7 | 4.3 | 3.71 |
| 8 | 5.15 | 5.44 | 5.66 | 5.76 | 5.85 | 5.69 | 5.24 | 4.63 |
| 10 | 5.74 | 5.97 | 6.13 | 6.3 | 6.36 | 6.29 | 6.02 | 5.43 |
| 12 | 6.08 | 6.25 | 6.39 | 6.58 | 6.67 | 6.62 | 6.43 | 6.09 |
| 14 | 6.27 | 6.42 | 6.58 | 6.77 | 6.96 | 6.92 | 6.72 | 6.44 |
| 16 | 6.37 | 6.54 | 6.74 | 6.88 | 7.24 | 7.23 | 7.03 | 6.71 |
| 20 | 6.41 | 6.62 | 6.97 | 7.18 | 7.6 | 7.74 | 7.62 | 7.28 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 2.86 | 148° | 3.21 |
| 8 | 42° | 3.41 | 152° | 4.02 |
| 10 | 42° | 3.83 | 153° | 4.72 |
| 12 | 41.1° | 4.18 | 160° | 5.38 |
| 14 | 40.1° | 4.39 | 180° | 5.97 |
| 16 | 39.8° | 4.48 | 180° | 6.35 |
| 20 | 40.1° | 4.48 | 180° | 6.88 |
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