Alfa Scorpii
ROU Smokey 25Sail number ROU/ROU808
GPH
759.6
OSN
734.9
LOA
7.57 m
Displacement
1265 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5353
Medium
0.7312
High
0.8422
Triple Offshore
Low
0.6878
Medium
0.8925
High
1.0045
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 m²
Sails
- Mainsail
- 13.63 m²
- Genoa
- 10.34 m²
- Spinnaker
- 24.07 m²
- Asymmetric spinnaker
- 34.7 m²
Design
- Type
- Smokey 25
- Builder
- David Garrard Yach
- Designer
- Steven Joanes
- Year built
- 1979
- Stability index
- 109.8
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.19 | 4.38 | 4.48 | 4.79 | 4.81 | 4.55 | 4.09 | 3.49 |
| 8 | 4.98 | 5.16 | 5.34 | 5.62 | 5.65 | 5.53 | 5.07 | 4.42 |
| 10 | 5.47 | 5.62 | 5.78 | 6.05 | 6.11 | 6.02 | 5.77 | 5.23 |
| 12 | 5.73 | 5.87 | 6.01 | 6.33 | 6.48 | 6.4 | 6.16 | 5.81 |
| 14 | 5.9 | 6.04 | 6.21 | 6.54 | 6.81 | 6.78 | 6.51 | 6.16 |
| 16 | 5.99 | 6.17 | 6.39 | 6.66 | 7.12 | 7.17 | 6.87 | 6.49 |
| 20 | 6.06 | 6.27 | 6.62 | 6.86 | 7.75 | 8.19 | 7.88 | 7.2 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 2.79 | 145.7° | 3.02 |
| 8 | 40.6° | 3.38 | 150.5° | 3.83 |
| 10 | 39.4° | 3.81 | 153.2° | 4.54 |
| 12 | 38.1° | 4.08 | 164° | 5.2 |
| 14 | 37.5° | 4.24 | 176.6° | 5.7 |
| 16 | 37.5° | 4.29 | 179° | 6.06 |
| 20 | 38.2° | 4.29 | 178.4° | 6.67 |
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