JACK SPARROW
ITA Stram 40 mod.Sail number ITA/ITA16827
GPH
560.7
OSN
546
LOA
11.99 m
Displacement
6848 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7478
Medium
0.9773
High
1.0931
Triple Offshore
Low
0.9566
Medium
1.1982
High
1.3233
Boat Specifications
Dimensions
- Length overall
- 11.99 m
- Beam
- 4 m
- Draft
- 2.53 m
- Displacement
- 6848 kg
- Crew weight
- 810 kg
- Wetted surface
- 32.73 m²
Sails
- Mainsail
- 54.44 m²
- Genoa
- 41.59 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 158.09 m²
Design
- Type
- Stram 40 mod.
- Builder
- Stream Yachts
- Designer
- Adragna Y.D.
- Year built
- 2013
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 | 6 | 6.3 | 6.5 | 6.36 | 6.5 | 6.35 | 5.69 | 4.8 |
| 8 | 7.02 | 7.25 | 7.4 | 7.39 | 7.6 | 7.53 | 7.04 | 6.04 |
| 10 | 7.51 | 7.71 | 7.87 | 7.87 | 8.15 | 8.15 | 7.85 | 7.09 |
| 12 | 7.71 | 7.93 | 8.16 | 8.23 | 8.49 | 8.65 | 8.41 | 7.79 |
| 14 | 7.83 | 8.05 | 8.36 | 8.54 | 8.77 | 9.08 | 8.98 | 8.22 |
| 16 | 7.9 | 8.13 | 8.5 | 8.8 | 9.02 | 9.41 | 9.6 | 8.62 |
| 20 | 7.99 | 8.24 | 8.7 | 9.18 | 9.49 | 10.09 | 11.15 | 9.85 |
| 24 | 7.99 | 8.26 | 8.8 | 9.43 | 10 | 10.76 | 12.52 | 12 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.3° | 3.98 | 142.8° | 4.16 |
| 8 | 40.2° | 4.8 | 146.2° | 5.23 |
| 10 | 38.7° | 5.26 | 149.4° | 6.14 |
| 12 | 37.8° | 5.47 | 150.9° | 6.76 |
| 14 | 37.5° | 5.59 | 150.2° | 7.12 |
| 16 | 37.1° | 5.67 | 173.4° | 7.55 |
| 20 | 37.4° | 5.74 | 143.3° | 8.53 |
| 24 | 38.8° | 5.64 | 142.6° | 10.39 |
Loading polar chart…