SUMBRA IV
ITA One TonnerSail number ITA/ITA6061
GPH
626.7
OSN
611.2
LOA
11.2 m
Displacement
5497 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6732
Medium
0.8821
High
0.9931
Triple Offshore
Low
0.8604
Medium
1.0703
High
1.1718
Boat Specifications
Dimensions
- Length overall
- 11.2 m
- Beam
- 3.5 m
- Draft
- 2.11 m
- Displacement
- 5497 kg
- Crew weight
- 650 kg
- Wetted surface
- 26.05 m²
Sails
- Mainsail
- 32.92 m²
- Genoa
- 59.99 m²
- Spinnaker
- 99.6 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- One Tonner
- Builder
- Huisman
- Designer
- Peterson
- Year built
- 1974
- Stability index
- 129.4
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.55 | 5.84 | 6.07 | 5.98 | 5.54 | 5.4 | 4.94 | 4.23 |
| 8 | 6.46 | 6.65 | 6.78 | 6.77 | 6.65 | 6.54 | 6.07 | 5.3 |
| 10 | 6.8 | 6.95 | 7.08 | 7.11 | 7.14 | 7.09 | 6.84 | 6.26 |
| 12 | 6.92 | 7.09 | 7.28 | 7.36 | 7.49 | 7.47 | 7.25 | 6.89 |
| 14 | 6.99 | 7.16 | 7.42 | 7.59 | 7.79 | 7.86 | 7.64 | 7.26 |
| 16 | 7.03 | 7.2 | 7.51 | 7.79 | 7.98 | 8.21 | 8.06 | 7.63 |
| 20 | 7.07 | 7.23 | 7.6 | 8.02 | 8.27 | 8.62 | 8.86 | 8.42 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.69 | 146.2° | 3.67 |
| 8 | 41.4° | 4.37 | 150.5° | 4.59 |
| 10 | 39.9° | 4.75 | 152° | 5.43 |
| 12 | 38.4° | 4.93 | 159.2° | 6.12 |
| 14 | 38.2° | 5.03 | 173° | 6.68 |
| 16 | 38.2° | 5.05 | 179° | 7.09 |
| 20 | 37.8° | 5.13 | 178.1° | 7.78 |
Loading polar chart…