Alfa Scorpii
ROU Smokey 25Sail number ROU/ROU808
GPH
766
OSN
743.6
LOA
7.57 m
Displacement
1265 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.531
Medium
0.7166
High
0.824
Triple Offshore
Low
0.683
Medium
0.8844
High
0.9939
Boat Specifications
Dimensions
- Length overall
- 7.57 m
- Beam
- 2.49 m
- Draft
- 1.5 m
- Displacement
- 1265 kg
- Crew weight
- 340 kg
- Wetted surface
- 11.11 m²
Sails
- Mainsail
- 13.63 m²
- Genoa
- 10.34 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 34.7 m²
Design
- Type
- Smokey 25
- Builder
- David Garrard Yach
- Designer
- Steven Joanes
- Year built
- 1979
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.17 | 4.36 | 4.47 | 4.75 | 4.76 | 4.5 | 4.04 | 3.45 |
| 8 | 4.97 | 5.15 | 5.31 | 5.6 | 5.62 | 5.5 | 5.01 | 4.35 |
| 10 | 5.46 | 5.61 | 5.78 | 6.04 | 6.09 | 6 | 5.74 | 5.12 |
| 12 | 5.73 | 5.87 | 6.02 | 6.33 | 6.45 | 6.37 | 6.14 | 5.64 |
| 14 | 5.9 | 6.05 | 6.21 | 6.54 | 6.79 | 6.74 | 6.48 | 5.96 |
| 16 | 6 | 6.17 | 6.39 | 6.67 | 7.11 | 7.13 | 6.83 | 6.22 |
| 20 | 6.06 | 6.28 | 6.62 | 6.86 | 7.74 | 8.14 | 7.74 | 6.75 |
| 24 | 6.04 | 6.3 | 6.72 | 7.11 | 8.29 | 9.78 | 10.24 | 8.43 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.1° | 2.78 | 145.5° | 2.99 |
| 8 | 40.9° | 3.37 | 146.3° | 3.77 |
| 10 | 39.5° | 3.8 | 146.4° | 4.44 |
| 12 | 38.1° | 4.08 | 149° | 4.88 |
| 14 | 37.4° | 4.25 | 173.4° | 5.35 |
| 16 | 37.5° | 4.31 | 176.2° | 5.75 |
| 20 | 38.2° | 4.3 | 177.1° | 6.31 |
| 24 | 40° | 4.19 | 136.9° | 7.3 |
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