Alpha Crucis
AUS International 5.5Sail number AUS/AUS61
GPH
686.6
OSN
670.4
LOA
9.595 m
Displacement
2003 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6121
Medium
0.8
High
0.8968
Triple Offshore
Low
0.7876
Medium
0.9754
High
1.0699
Boat Specifications
Dimensions
- Length overall
- 9.595 m
- Beam
- 1.9 m
- Draft
- 1.36 m
- Displacement
- 2003 kg
- Crew weight
- 250 kg
- Wetted surface
- 12.88 m²
Sails
- Mainsail
- 21.67 m²
- Genoa
- 11.15 m²
- Spinnaker
- 47.21 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- International 5.5
- Builder
- Yachtwerft Christo
- Designer
- Sebastian Schmidt
- Year built
- 1949
- Stability index
- -1
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 4 | 3.73 | 3.97 | 4.15 | 4.13 | 4.19 | 4.01 | 3.42 | 2.73 |
| 6 | 4.92 | 5.18 | 5.38 | 5.37 | 5.51 | 5.37 | 4.77 | 3.95 |
| 8 | 5.67 | 5.89 | 6.08 | 6.09 | 6.31 | 6.26 | 5.85 | 5.05 |
| 10 | 6.01 | 6.22 | 6.42 | 6.48 | 6.68 | 6.71 | 6.53 | 5.96 |
| 12 | 6.17 | 6.38 | 6.61 | 6.73 | 6.91 | 7.03 | 6.95 | 6.59 |
| 14 | 6.27 | 6.47 | 6.74 | 6.91 | 7.09 | 7.34 | 7.33 | 7 |
| 16 | 6.32 | 6.53 | 6.82 | 7.07 | 7.26 | 7.58 | 7.79 | 7.42 |
| 20 | 6.37 | 6.59 | 6.94 | 7.34 | 7.58 | 8.07 | 9.09 | 8.62 |
| 24 | 6.3 | 6.57 | 6.99 | 7.54 | 8.04 | 8.56 | 10.25 | 10.96 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 4 | 42.7° | 2.4 | 144.2° | 2.36 |
| 6 | 42.7° | 3.25 | 144.2° | 3.42 |
| 8 | 40.5° | 3.85 | 149.1° | 4.37 |
| 10 | 39.7° | 4.14 | 154.6° | 5.18 |
| 12 | 39.4° | 4.28 | 161.3° | 5.88 |
| 14 | 39.3° | 4.35 | 169.6° | 6.4 |
| 16 | 39.3° | 4.4 | 176.3° | 6.8 |
| 20 | 39.9° | 4.4 | 166.7° | 7.58 |
| 24 | 42.6° | 4.2 | 150.9° | 9.51 |
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