MARTA JEAN
AUS j 122Sail number AUS/N122
GPH
576.6
OSN
559.2
LOA
12.19 m
Displacement
7480 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7035
Medium
0.961
High
1.1093
Triple Offshore
Low
0.9079
Medium
1.1752
High
1.3191
Boat Specifications
Dimensions
- Length overall
- 12.19 m
- Beam
- 3.64 m
- Draft
- 2.39 m
- Displacement
- 7480 kg
- Crew weight
- 795 kg
- Wetted surface
- 33.05 m²
Sails
- Mainsail
- 48.99 m²
- Genoa
- 38.65 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 153.43 m²
Design
- Type
- j 122
- Builder
- J Composites
- Designer
- Rod Johnstone
- Year built
- 2006
- Stability index
- 126.8
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.49 | 5.81 | 6.06 | 6.18 | 6.31 | 6.17 | 5.58 | 4.74 |
| 8 | 6.55 | 6.87 | 7.1 | 7.36 | 7.5 | 7.41 | 6.91 | 5.88 |
| 10 | 7.3 | 7.5 | 7.64 | 7.79 | 8.04 | 8 | 7.72 | 6.95 |
| 12 | 7.64 | 7.82 | 7.97 | 7.99 | 8.41 | 8.47 | 8.21 | 7.7 |
| 14 | 7.8 | 7.99 | 8.22 | 8.28 | 8.68 | 8.96 | 8.72 | 8.14 |
| 16 | 7.87 | 8.08 | 8.42 | 8.58 | 8.94 | 9.32 | 9.29 | 8.6 |
| 20 | 7.95 | 8.17 | 8.64 | 9.11 | 9.42 | 9.95 | 10.7 | 9.67 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.59 | 143.4° | 4.1 |
| 8 | 41.2° | 4.37 | 146.9° | 5.09 |
| 10 | 40.6° | 5.01 | 148.2° | 6.02 |
| 12 | 38.7° | 5.42 | 156.3° | 6.77 |
| 14 | 37.6° | 5.59 | 166.4° | 7.34 |
| 16 | 37.5° | 5.67 | 177.2° | 7.83 |
| 20 | 36.6° | 5.82 | 175.4° | 8.68 |
Loading polar chart…