LICHTBLICK
GER FIRST 31.7Sail number GER/GER4910
GPH
667.9
OSN
645.8
LOA
9.49 m
Displacement
3386 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6751
Medium
0.9326
High
1.0769
Triple Offshore
Low
0.8694
Medium
1.1473
High
1.2949
Boat Specifications
Dimensions
- Length overall
- 9.49 m
- Beam
- 3.22 m
- Draft
- 1.91 m
- Displacement
- 3386 kg
- Crew weight
- 479 kg
- Wetted surface
- 21.26 m²
Sails
- Mainsail
- 24.83 m²
- Genoa
- 26.5 m²
- Spinnaker
- 59.16 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT-LONQ
- Year built
- 1998
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 | 4.81 | 5.07 | 5.27 | 5.2 | 5.19 | 5.03 | 4.54 | 3.85 |
| 8 | 5.76 | 6.03 | 6.23 | 6.23 | 6.32 | 6.16 | 5.62 | 4.9 |
| 10 | 6.42 | 6.61 | 6.75 | 6.86 | 6.94 | 6.84 | 6.48 | 5.8 |
| 12 | 6.74 | 6.9 | 7.05 | 7.18 | 7.35 | 7.26 | 6.98 | 6.54 |
| 14 | 6.88 | 7.07 | 7.29 | 7.36 | 7.78 | 7.7 | 7.36 | 6.98 |
| 16 | 6.93 | 7.15 | 7.5 | 7.67 | 8.16 | 8.17 | 7.81 | 7.34 |
| 20 | 6.94 | 7.18 | 7.67 | 8.17 | 8.6 | 9.1 | 8.85 | 8.19 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.6° | 3.17 | 146.4° | 3.33 |
| 8 | 41.1° | 3.85 | 150.2° | 4.24 |
| 10 | 40.6° | 4.39 | 152.1° | 5.03 |
| 12 | 39° | 4.75 | 157.5° | 5.74 |
| 14 | 38.3° | 4.88 | 180° | 6.37 |
| 16 | 38.2° | 4.92 | 180° | 6.85 |
| 20 | 39.2° | 4.85 | 180° | 7.57 |
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