STRIKING BACK
USA J 111Sail number USA/USA106
Stored record updated May 13, 2026 UTC.
GPH
568.5
OSN
553.7
LOA
11.121 m
Displacement
4219 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7341
Medium
0.9634
High
1.0854
Triple Offshore
Low
0.9428
Medium
1.1814
High
1.3143
Boat Specifications
Dimensions
- Length overall
- 11.121 m
- Beam
- 3.3 m
- Draft
- 2.19 m
- Displacement
- 4219 kg
- Crew weight
- 683 kg
- Wetted surface
- 25.57 m²
Sails
- Mainsail
- 38.99 m²
- Genoa
- 33.7 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 129.63 m²
Design
- Type
- J 111
- Builder
- J Composites
- Designer
- Johnstone
- Year built
- 2010
Performance data
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into Offwind or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.87 | 6.17 | 6.36 | 6.58 | 6.41 | 6.22 | 5.58 | 4.72 |
| 8 | 6.92 | 7.14 | 7.28 | 7.48 | 7.46 | 7.42 | 6.95 | 5.97 |
| 10 | 7.35 | 7.54 | 7.71 | 7.86 | 8.02 | 8.03 | 7.74 | 7.02 |
| 12 | 7.51 | 7.72 | 7.99 | 8.09 | 8.49 | 8.54 | 8.37 | 7.71 |
| 14 | 7.61 | 7.83 | 8.16 | 8.41 | 8.88 | 9 | 9.03 | 8.19 |
| 16 | 7.68 | 7.91 | 8.29 | 8.65 | 9.21 | 9.56 | 9.8 | 8.73 |
| 20 | 7.75 | 8 | 8.47 | 9 | 9.82 | 10.61 | 11.53 | 10.42 |
| 24 | 7.72 | 8 | 8.55 | 9.22 | 10.07 | 11.64 | 13.12 | 13.47 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.7° | 3.87 | 143.1° | 4.08 |
| 8 | 40.5° | 4.73 | 146.1° | 5.17 |
| 10 | 38.4° | 5.18 | 149.6° | 6.08 |
| 12 | 37.5° | 5.36 | 151.2° | 6.68 |
| 14 | 37.1° | 5.47 | 148.7° | 7.09 |
| 16 | 37.1° | 5.53 | 146.3° | 7.56 |
| 20 | 37.1° | 5.59 | 143.3° | 9.02 |
| 24 | 38.8° | 5.45 | 145.3° | 11.67 |
VPP POLAR · BOAT SPEED BY TWAKT
Hover or tap the chart, or use the slider, to read boat speeds.
True wind speed 6 kt8 kt10 kt12 kt14 kt16 kt20 kt24 kt
Data table
| TWA | Boat speed in 6 kt (kt) | Boat speed in 8 kt (kt) | Boat speed in 10 kt (kt) | Boat speed in 12 kt (kt) | Boat speed in 14 kt (kt) | Boat speed in 16 kt (kt) | Boat speed in 20 kt (kt) | Boat speed in 24 kt (kt) |
|---|---|---|---|---|---|---|---|---|
| 0° | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 | 0.00 |
| 52° | 5.87 | 6.92 | 7.35 | 7.51 | 7.61 | 7.68 | 7.75 | 7.72 |
| 60° | 6.17 | 7.14 | 7.54 | 7.72 | 7.83 | 7.91 | 8.00 | 8.00 |
| 75° | 6.36 | 7.28 | 7.71 | 7.99 | 8.16 | 8.29 | 8.47 | 8.55 |
| 90° | 6.58 | 7.48 | 7.86 | 8.09 | 8.41 | 8.65 | 9.00 | 9.22 |
| 110° | 6.41 | 7.46 | 8.02 | 8.49 | 8.88 | 9.21 | 9.82 | 10.07 |
| 120° | 6.22 | 7.42 | 8.03 | 8.54 | 9.00 | 9.56 | 10.61 | 11.64 |
| 135° | 5.58 | 6.95 | 7.74 | 8.37 | 9.03 | 9.80 | 11.53 | 13.12 |
| 150° | 4.72 | 5.97 | 7.02 | 7.71 | 8.19 | 8.73 | 10.42 | 13.47 |