Thetis
FIN First 31.7Sail number FIN/FIN10742
GPH
679.5
OSN
655.2
LOA
9.61 m
Displacement
3809 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5868
Medium
0.8158
High
0.9504
Triple Offshore
Low
0.7565
Medium
1.0045
High
1.1364
Boat Specifications
Dimensions
- Length overall
- 9.61 m
- Beam
- 3.21 m
- Draft
- 1.93 m
- Displacement
- 3809 kg
- Crew weight
- 510 kg
- Wetted surface
- 21.9 m²
Sails
- Mainsail
- 25.2 m²
- Genoa
- 22 m²
- Spinnaker
- 62.86 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- First 31.7
- Builder
- Beneteau
- Designer
- Finot
- Year built
- 1998
- Stability index
- 110
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.7 | 4.94 | 5.09 | 5.09 | 5.15 | 4.98 | 4.46 | 3.75 |
| 8 | 5.62 | 5.87 | 6.03 | 6.14 | 6.26 | 6.1 | 5.56 | 4.83 |
| 10 | 6.23 | 6.44 | 6.6 | 6.77 | 6.9 | 6.81 | 6.42 | 5.76 |
| 12 | 6.6 | 6.78 | 6.94 | 7.11 | 7.31 | 7.26 | 6.96 | 6.5 |
| 14 | 6.8 | 6.98 | 7.18 | 7.29 | 7.67 | 7.65 | 7.37 | 6.98 |
| 16 | 6.89 | 7.1 | 7.37 | 7.49 | 7.98 | 8.02 | 7.77 | 7.36 |
| 20 | 6.94 | 7.18 | 7.59 | 7.91 | 8.38 | 8.75 | 8.64 | 8.12 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 3.08 | 145.7° | 3.25 |
| 8 | 41.4° | 3.78 | 149.6° | 4.18 |
| 10 | 40° | 4.28 | 152.3° | 5 |
| 12 | 38.8° | 4.63 | 157.7° | 5.71 |
| 14 | 38.4° | 4.8 | 169.4° | 6.31 |
| 16 | 38.2° | 4.87 | 177.2° | 6.8 |
| 20 | 38.7° | 4.87 | 178.1° | 7.53 |
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