GIGI 1
ITA SURPRISESail number ITA/ITA718SU
GPH
695.8
OSN
673.8
LOA
7.64 m
Displacement
1285 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.655
Medium
0.8977
High
1.0303
Triple Offshore
Low
0.8446
Medium
1.0935
High
1.247
Boat Specifications
Dimensions
- Length overall
- 7.64 m
- Beam
- 2.38 m
- Draft
- 1.57 m
- Displacement
- 1285 kg
- Crew weight
- 380 kg
- Wetted surface
- 13.25 m²
Sails
- Mainsail
- 18.58 m²
- Genoa
- 15.28 m²
- Spinnaker
- 39.34 m²
- Asymmetric spinnaker
- 38.99 m²
Design
- Type
- SURPRISE
- Builder
- ARCHAMBAULT
- Designer
- JOUBERT-NIVELT
- Year built
- 1977
Velocity Prediction
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.69 | 4.93 | 5.12 | 5.18 | 5.18 | 4.99 | 4.43 | 3.7 |
| 8 | 5.56 | 5.75 | 5.88 | 6.03 | 6.05 | 5.92 | 5.41 | 4.69 |
| 10 | 6.01 | 6.13 | 6.24 | 6.48 | 6.52 | 6.4 | 6.12 | 5.57 |
| 12 | 6.24 | 6.4 | 6.59 | 6.88 | 7.08 | 6.92 | 6.55 | 6.16 |
| 14 | 6.35 | 6.57 | 6.9 | 7.11 | 7.64 | 7.51 | 7.06 | 6.56 |
| 16 | 6.4 | 6.65 | 7.11 | 7.41 | 8.17 | 8.21 | 7.65 | 7.04 |
| 20 | 6.45 | 6.7 | 7.26 | 7.92 | 8.92 | 9.76 | 9.24 | 8.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.11 | 147° | 3.21 |
| 8 | 40.6° | 3.77 | 150.9° | 4.06 |
| 10 | 38.7° | 4.28 | 152.1° | 4.84 |
| 12 | 36.4° | 4.56 | 166.5° | 5.53 |
| 14 | 35.7° | 4.65 | 180° | 6.07 |
| 16 | 35.6° | 4.69 | 180° | 6.45 |
| 20 | 35.9° | 4.7 | 180° | 7.33 |
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