THE PEANUT GALLERY
AUS VIPER 640Sail number AUS/AUS185
GPH
608.8
OSN
593.7
LOA
6.48 m
Displacement
318 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.682
Medium
0.8699
High
1.0308
Triple Offshore
Low
0.8672
Medium
1.099
High
1.2861
Boat Specifications
Dimensions
- Length overall
- 6.48 m
- Beam
- 2.34 m
- Draft
- 1.49 m
- Displacement
- 318 kg
- Crew weight
- 340 kg
- Wetted surface
- 7.29 m²
Sails
- Mainsail
- 15.83 m²
- Genoa
- 7.75 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 37.71 m²
Design
- Type
- VIPER 640
- Builder
- RONDAR
- Designer
- BENNET
- Year built
- 1996
- Stability index
- -1
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 4 | 4.23 | 4.39 | 4.41 | 4.42 | 4.42 | 4.25 | 3.99 | 3.2 |
| 6 | 5.42 | 5.63 | 5.77 | 5.72 | 5.91 | 5.8 | 5.34 | 4.51 |
| 8 | 6.02 | 6.3 | 6.63 | 6.6 | 6.94 | 7.02 | 6.44 | 5.6 |
| 10 | 6.29 | 6.65 | 7.23 | 7.62 | 7.69 | 8.09 | 7.84 | 6.52 |
| 12 | 6.47 | 6.88 | 7.63 | 8.32 | 8.41 | 8.92 | 9.31 | 7.88 |
| 14 | 6.6 | 7.07 | 7.97 | 8.83 | 9.37 | 9.69 | 10.5 | 9.32 |
| 16 | 6.71 | 7.24 | 8.26 | 9.26 | 10.22 | 10.4 | 11.45 | 10.87 |
| 20 | 6.8 | 7.42 | 8.65 | 9.89 | 11.39 | 11.97 | 13.19 | 13.95 |
| 24 | 6.66 | 7.33 | 8.76 | 10.31 | 12.28 | 13.11 | 14.73 | 16.28 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 4 | 42.1° | 2.71 | 142.6° | 2.77 |
| 6 | 42.1° | 3.62 | 142.6° | 3.91 |
| 8 | 38.5° | 4.19 | 148.8° | 4.85 |
| 10 | 37.8° | 4.36 | 141.3° | 5.65 |
| 12 | 37.8° | 4.44 | 141.1° | 6.82 |
| 14 | 38.1° | 4.48 | 143° | 8.07 |
| 16 | 38.3° | 4.53 | 144.9° | 9.41 |
| 20 | 39.3° | 4.52 | 149.7° | 12.08 |
| 24 | 40.8° | 4.37 | 153.1° | 14.46 |
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