SEABIRD
EST First 31.7Sail number EST/EST337
GPH
672
OSN
649.9
LOA
9.61 m
Displacement
3639 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5926
Medium
0.8218
High
0.9499
Triple Offshore
Low
0.7675
Medium
1.0143
High
1.1427
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.92 m
- Displacement
- 3639 kg
- Crew weight
- 450 kg
- Wetted surface
- 21.48 m²
Sails
- Mainsail
- 25.46 m²
- Genoa
- 27.49 m²
- Spinnaker
- 60.05 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- First 31.7
- Builder
- Beneteau S.A.
- Designer
- Farr
- Year built
- 1998
- Stability index
- 111.5
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.81 | 5.1 | 5.32 | 5.24 | 5.19 | 5.02 | 4.51 | 3.8 |
| 8 | 5.73 | 6.03 | 6.26 | 6.23 | 6.32 | 6.16 | 5.6 | 4.87 |
| 10 | 6.38 | 6.6 | 6.76 | 6.85 | 6.95 | 6.86 | 6.49 | 5.79 |
| 12 | 6.71 | 6.89 | 7.05 | 7.16 | 7.35 | 7.27 | 6.99 | 6.55 |
| 14 | 6.85 | 7.05 | 7.28 | 7.37 | 7.76 | 7.7 | 7.39 | 7.01 |
| 16 | 6.9 | 7.11 | 7.46 | 7.66 | 8.11 | 8.17 | 7.84 | 7.38 |
| 20 | 6.91 | 7.15 | 7.61 | 8.13 | 8.53 | 9.02 | 8.89 | 8.25 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.6° | 3.12 | 146° | 3.29 |
| 8 | 42.3° | 3.8 | 150.2° | 4.22 |
| 10 | 41.2° | 4.32 | 152° | 5.02 |
| 12 | 39.9° | 4.68 | 157.4° | 5.76 |
| 14 | 39° | 4.81 | 169.4° | 6.36 |
| 16 | 38.8° | 4.86 | 177.2° | 6.85 |
| 20 | 39.9° | 4.8 | 177.2° | 7.57 |
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