BOOMERANG
ITA SURPRISESail number ITA/ITA80SU
GPH
687.4
OSN
665.1
LOA
7.64 m
Displacement
1285 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5973
Medium
0.8083
High
0.9252
Triple Offshore
Low
0.7654
Medium
0.9819
High
1.1123
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
- 13.13 m²
Sails
- Mainsail
- 19.07 m²
- Genoa
- 17.05 m²
- Spinnaker
- 41.15 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- SURPRISE
- Builder
- Archambault
- Designer
- JOUBERT-NIVELT
- Year built
- 1977
- Stability index
- 99.7
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.95 | 5.17 | 5.28 | 5.17 | 5.12 | 4.95 | 4.4 | 3.67 |
| 8 | 5.74 | 5.9 | 5.98 | 5.99 | 6.04 | 5.91 | 5.4 | 4.7 |
| 10 | 6.13 | 6.26 | 6.37 | 6.46 | 6.58 | 6.47 | 6.15 | 5.57 |
| 12 | 6.34 | 6.51 | 6.69 | 6.76 | 7.07 | 6.99 | 6.63 | 6.2 |
| 14 | 6.45 | 6.66 | 6.96 | 7.08 | 7.52 | 7.51 | 7.12 | 6.65 |
| 16 | 6.53 | 6.76 | 7.13 | 7.39 | 7.92 | 8.11 | 7.68 | 7.11 |
| 20 | 6.61 | 6.88 | 7.34 | 7.87 | 8.55 | 9.36 | 9.26 | 8.21 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.3° | 3.29 | 145.6° | 3.18 |
| 8 | 40.2° | 3.97 | 150.5° | 4.07 |
| 10 | 37.5° | 4.42 | 152.3° | 4.84 |
| 12 | 36° | 4.63 | 161° | 5.52 |
| 14 | 35.7° | 4.71 | 176.3° | 6.07 |
| 16 | 35.4° | 4.76 | 177.2° | 6.48 |
| 20 | 35.8° | 4.78 | 176.6° | 7.34 |
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