SIRIUS IV
ESP PROTO IOR ONE TONSail number ESP/ESP2586
GPH
582.8
OSN
566.7
LOA
12.013 m
Displacement
6167 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7929
Medium
1.067
High
1.2292
Triple Offshore
Low
1.0189
Medium
1.3024
High
1.4608
Boat Specifications
Dimensions
- Length overall
- 12.013 m
- Beam
- 3.94 m
- Draft
- 2.74 m
- Displacement
- 6167 kg
- Crew weight
- 850 kg
- Wetted surface
- 26.89 m²
Sails
- Mainsail
- 51.75 m²
- Genoa
- 39.3 m²
- Spinnaker
- 90.62 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- PROTO IOR ONE TON
- Builder
- BARRACUDA
- Designer
- B. FARR
- Year built
- 1984
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.85 | 6.13 | 6.34 | 6.22 | 5.93 | 5.73 | 5.16 | 4.33 |
| 8 | 6.92 | 7.13 | 7.26 | 7.19 | 7.13 | 6.95 | 6.33 | 5.42 |
| 10 | 7.4 | 7.56 | 7.69 | 7.66 | 7.73 | 7.61 | 7.23 | 6.43 |
| 12 | 7.63 | 7.8 | 7.99 | 8 | 8.17 | 8.06 | 7.73 | 7.24 |
| 14 | 7.74 | 7.96 | 8.25 | 8.33 | 8.61 | 8.54 | 8.16 | 7.71 |
| 16 | 7.81 | 8.05 | 8.44 | 8.63 | 8.97 | 9 | 8.62 | 8.11 |
| 20 | 7.87 | 8.14 | 8.64 | 9.07 | 9.43 | 9.88 | 9.64 | 8.98 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 40.7° | 3.93 | 144.5° | 3.75 |
| 8 | 40.3° | 4.71 | 149.5° | 4.7 |
| 10 | 38.3° | 5.26 | 150.2° | 5.57 |
| 12 | 37.1° | 5.52 | 156.8° | 6.35 |
| 14 | 36.4° | 5.65 | 173.8° | 7.01 |
| 16 | 36° | 5.71 | 180° | 7.54 |
| 20 | 35.6° | 5.8 | 180° | 8.33 |
Loading polar chart…