SEABIRD
EST First 31.7Sail number EST/EST337
GPH
667.9
OSN
644.8
LOA
9.61 m
Displacement
3726 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5988
Medium
0.831
High
0.9654
Triple Offshore
Low
0.7728
Medium
1.0203
High
1.1516
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.93 m
- Displacement
- 3726 kg
- Crew weight
- 500 kg
- Wetted surface
- 22 m²
Sails
- Mainsail
- 25.46 m²
- Genoa
- 27.49 m²
- Spinnaker
- 66.92 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- First 31.7
- Builder
- Beneteau S.A.
- Designer
- Farr
- Year built
- 1998
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.89 | 5.15 | 5.31 | 5.18 | 5.21 | 5.04 | 4.52 | 3.77 |
| 8 | 5.81 | 6.05 | 6.22 | 6.18 | 6.31 | 6.16 | 5.62 | 4.85 |
| 10 | 6.39 | 6.58 | 6.73 | 6.8 | 6.94 | 6.85 | 6.49 | 5.8 |
| 12 | 6.73 | 6.89 | 7.04 | 7.13 | 7.35 | 7.3 | 7.02 | 6.55 |
| 14 | 6.9 | 7.08 | 7.28 | 7.34 | 7.72 | 7.71 | 7.43 | 7.03 |
| 16 | 6.97 | 7.17 | 7.47 | 7.6 | 8.02 | 8.1 | 7.85 | 7.41 |
| 20 | 7.02 | 7.25 | 7.66 | 8.01 | 8.41 | 8.84 | 8.75 | 8.19 |
| 24 | 7 | 7.26 | 7.75 | 8.24 | 8.74 | 9.37 | 10.11 | 9.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.7° | 3.2 | 145.1° | 3.26 |
| 8 | 41.4° | 3.91 | 149.2° | 4.2 |
| 10 | 39.7° | 4.42 | 150.7° | 5.03 |
| 12 | 38.3° | 4.76 | 157.2° | 5.76 |
| 14 | 37.8° | 4.91 | 168.2° | 6.34 |
| 16 | 37.5° | 4.98 | 176.8° | 6.83 |
| 20 | 37.9° | 4.99 | 178.1° | 7.57 |
| 24 | 38.9° | 4.9 | 177.2° | 8.3 |
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