Thetis
FIN First 31.7Sail number FIN/FIN10742
GPH
669.2
OSN
647.2
LOA
9.61 m
Displacement
3809 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5972
Medium
0.827
High
0.9566
Triple Offshore
Low
0.7724
Medium
1.0178
High
1.1454
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
- 21.91 m²
Sails
- Mainsail
- 25.2 m²
- Genoa
- 30.37 m²
- Spinnaker
- 62.86 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- First 31.7
- Builder
- Beneteau
- Designer
- Finot
- Year built
- 1998
- Stability index
- 110.1
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.87 | 5.16 | 5.37 | 5.28 | 5.17 | 5.01 | 4.51 | 3.8 |
| 8 | 5.79 | 6.08 | 6.29 | 6.26 | 6.31 | 6.14 | 5.59 | 4.86 |
| 10 | 6.43 | 6.63 | 6.78 | 6.84 | 6.93 | 6.85 | 6.48 | 5.78 |
| 12 | 6.74 | 6.91 | 7.06 | 7.15 | 7.32 | 7.25 | 6.98 | 6.55 |
| 14 | 6.87 | 7.06 | 7.28 | 7.37 | 7.71 | 7.66 | 7.36 | 6.99 |
| 16 | 6.92 | 7.13 | 7.45 | 7.64 | 8.07 | 8.1 | 7.79 | 7.35 |
| 20 | 6.94 | 7.17 | 7.6 | 8.09 | 8.49 | 8.95 | 8.77 | 8.18 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.2° | 3.17 | 146° | 3.29 |
| 8 | 41.4° | 3.85 | 150.2° | 4.21 |
| 10 | 40.8° | 4.39 | 152° | 5.01 |
| 12 | 39.4° | 4.73 | 156.8° | 5.75 |
| 14 | 38.7° | 4.86 | 168.2° | 6.35 |
| 16 | 38.2° | 4.92 | 177.2° | 6.83 |
| 20 | 39° | 4.88 | 178.1° | 7.53 |
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