NAOS II
FRA FIRST 40.7 SK ModSail number FRA/FRA19408
GPH
621.8
OSN
603.5
LOA
11.91 m
Displacement
7744 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7192
Medium
0.9898
High
1.1508
Triple Offshore
Low
0.9351
Medium
1.2318
High
1.3871
Boat Specifications
Dimensions
- Length overall
- 11.91 m
- Beam
- 3.77 m
- Draft
- 1.93 m
- Displacement
- 7744 kg
- Crew weight
- 756 kg
- Wetted surface
- 32.31 m²
Sails
- Mainsail
- 46.6 m²
- Genoa
- 33.42 m²
- Spinnaker
- 101.38 m²
- Asymmetric spinnaker
- 83.97 m²
Design
- Type
- FIRST 40.7 SK Mod
- Builder
- BENETEAU SA
- Designer
- FARR Bruce
- Year built
- 1997
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 | 5.11 | 5.46 | 5.73 | 5.71 | 5.72 | 5.56 | 5.03 | 4.24 |
| 8 | 6.09 | 6.44 | 6.74 | 6.86 | 6.95 | 6.78 | 6.19 | 5.35 |
| 10 | 6.85 | 7.13 | 7.34 | 7.53 | 7.62 | 7.53 | 7.13 | 6.32 |
| 12 | 7.26 | 7.48 | 7.67 | 7.86 | 8.01 | 7.96 | 7.67 | 7.15 |
| 14 | 7.43 | 7.66 | 7.89 | 8.03 | 8.36 | 8.35 | 8.05 | 7.65 |
| 16 | 7.5 | 7.74 | 8.06 | 8.23 | 8.71 | 8.76 | 8.46 | 8.01 |
| 20 | 7.55 | 7.78 | 8.21 | 8.67 | 9.15 | 9.5 | 9.36 | 8.79 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44.3° | 3.29 | 144.5° | 3.67 |
| 8 | 42.5° | 4 | 149.1° | 4.63 |
| 10 | 42° | 4.56 | 150.9° | 5.48 |
| 12 | 41.3° | 4.95 | 155.1° | 6.24 |
| 14 | 40.7° | 5.1 | 169.4° | 6.89 |
| 16 | 40.5° | 5.16 | 180° | 7.46 |
| 20 | 40.4° | 5.22 | 180° | 8.18 |
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