ALTAIR III
USA C&C 40-2Sail number USA/USA50254
GPH
629.3
OSN
611.3
LOA
12.134 m
Displacement
8174 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6624
Medium
0.8821
High
1.0111
Triple Offshore
Low
0.8444
Medium
1.0707
High
1.1865
Boat Specifications
Dimensions
- Length overall
- 12.134 m
- Beam
- 3.9 m
- Draft
- 2.12 m
- Displacement
- 8174 kg
- Crew weight
- 865 kg
- Wetted surface
- 29.7 m²
Sails
- Mainsail
- 34.67 m²
- Genoa
- 62.31 m²
- Spinnaker
- 122.35 m²
- Asymmetric spinnaker
- 110.86 m²
Design
- Type
- C&C 40-2
- Builder
- C&C
- Designer
- C&C
- Year built
- 1978
- Stability index
- 123.9
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.45 | 5.71 | 5.84 | 5.7 | 5.5 | 5.35 | 4.87 | 4.15 |
| 8 | 6.33 | 6.52 | 6.63 | 6.56 | 6.57 | 6.43 | 5.97 | 5.22 |
| 10 | 6.8 | 6.94 | 7.05 | 7.03 | 7.15 | 7.08 | 6.77 | 6.14 |
| 12 | 7.04 | 7.18 | 7.3 | 7.33 | 7.5 | 7.47 | 7.25 | 6.83 |
| 14 | 7.17 | 7.33 | 7.49 | 7.53 | 7.78 | 7.78 | 7.6 | 7.26 |
| 16 | 7.25 | 7.42 | 7.63 | 7.72 | 8.02 | 8.07 | 7.92 | 7.59 |
| 20 | 7.33 | 7.52 | 7.81 | 8.01 | 8.39 | 8.61 | 8.55 | 8.19 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.63 | 144.8° | 3.59 |
| 8 | 40.8° | 4.32 | 150.5° | 4.53 |
| 10 | 39° | 4.79 | 152.3° | 5.33 |
| 12 | 38.2° | 5.03 | 158.3° | 6.02 |
| 14 | 37.6° | 5.16 | 170° | 6.59 |
| 16 | 37° | 5.25 | 177.2° | 7.07 |
| 20 | 36.6° | 5.35 | 179° | 7.71 |
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