BURBUJON XL
ESP FIRST 31.7Sail number ESP/ESP6841_C
GPH
667.9
OSN
647
LOA
9.61 m
Displacement
3712 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6005
Medium
0.8261
High
0.9468
Triple Offshore
Low
0.777
Medium
1.0189
High
1.1401
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.93 m
- Displacement
- 3712 kg
- Crew weight
- 240 kg
- Wetted surface
- 21.05 m²
Sails
- Mainsail
- 25.3 m²
- Genoa
- 29.38 m²
- Spinnaker
- 61.73 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT
- Year built
- 1998
- Stability index
- 122.5
Velocity Prediction
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.87 | 5.16 | 5.39 | 5.33 | 5.22 | 5.06 | 4.55 | 3.83 |
| 8 | 5.82 | 6.11 | 6.32 | 6.3 | 6.35 | 6.2 | 5.65 | 4.9 |
| 10 | 6.44 | 6.65 | 6.81 | 6.85 | 6.96 | 6.89 | 6.54 | 5.84 |
| 12 | 6.72 | 6.9 | 7.09 | 7.14 | 7.37 | 7.31 | 7.04 | 6.6 |
| 14 | 6.81 | 7.01 | 7.29 | 7.42 | 7.77 | 7.76 | 7.45 | 7.05 |
| 16 | 6.85 | 7.07 | 7.43 | 7.7 | 8.04 | 8.22 | 7.93 | 7.44 |
| 20 | 6.85 | 7.09 | 7.54 | 8.1 | 8.44 | 8.92 | 9.02 | 8.36 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.2° | 3.18 | 146° | 3.31 |
| 8 | 41.8° | 3.87 | 150.2° | 4.24 |
| 10 | 40.8° | 4.39 | 151.6° | 5.06 |
| 12 | 39.9° | 4.66 | 157.4° | 5.8 |
| 14 | 39.3° | 4.76 | 169.4° | 6.41 |
| 16 | 39.3° | 4.79 | 177.2° | 6.89 |
| 20 | 39.9° | 4.76 | 177.2° | 7.64 |
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