CASSIOPEA
ITA SurpriseSail number ITA/ITA846SU
GPH
695.5
OSN
672.2
LOA
7.64 m
Displacement
1285 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5836
Medium
0.7987
High
0.9195
Triple Offshore
Low
0.7512
Medium
0.9732
High
1.1064
Boat Specifications
Dimensions
- Length overall
- 7.64 m
- Beam
- 2.38 m
- Draft
- 1.58 m
- Displacement
- 1285 kg
- Crew weight
- 400 kg
- Wetted surface
- 13.12 m²
Sails
- Mainsail
- 18.76 m²
- Genoa
- 15.62 m²
- Spinnaker
- 39.45 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Surprise
- Builder
- Archambault
- Designer
- Joubert/Nivelt
- Year built
- 1977
- Stability index
- 98.3
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.79 | 5.03 | 5.18 | 5.07 | 5.09 | 4.92 | 4.39 | 3.64 |
| 8 | 5.63 | 5.81 | 5.92 | 5.97 | 6.01 | 5.89 | 5.36 | 4.66 |
| 10 | 6.06 | 6.2 | 6.32 | 6.44 | 6.55 | 6.44 | 6.11 | 5.54 |
| 12 | 6.3 | 6.47 | 6.65 | 6.76 | 7.04 | 6.96 | 6.59 | 6.17 |
| 14 | 6.43 | 6.64 | 6.93 | 7.02 | 7.5 | 7.47 | 7.08 | 6.61 |
| 16 | 6.51 | 6.75 | 7.12 | 7.35 | 7.91 | 8.06 | 7.62 | 7.07 |
| 20 | 6.6 | 6.86 | 7.34 | 7.86 | 8.54 | 9.32 | 9.13 | 8.14 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.6° | 3.16 | 146° | 3.15 |
| 8 | 40.8° | 3.84 | 150.5° | 4.04 |
| 10 | 38.4° | 4.31 | 152.9° | 4.8 |
| 12 | 36.6° | 4.58 | 161° | 5.5 |
| 14 | 36° | 4.67 | 176.3° | 6.05 |
| 16 | 35.8° | 4.73 | 177.2° | 6.46 |
| 20 | 36.4° | 4.75 | 176.6° | 7.3 |
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