Thin Man
USA J 99Sail number USA/USA24
GPH
606.9
OSN
592.7
LOA
9.95 m
Displacement
3958 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6748
Medium
0.8989
High
1.0087
Triple Offshore
Low
0.8763
Medium
1.1094
High
1.2336
Boat Specifications
Dimensions
- Length overall
- 9.95 m
- Beam
- 3.41 m
- Draft
- 1.99 m
- Displacement
- 3958 kg
- Crew weight
- 575 kg
- Wetted surface
- 23.11 m²
Sails
- Mainsail
- 33.87 m²
- Genoa
- 26.68 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 112.63 m²
Design
- Type
- J 99
- Builder
- J Composites
- Designer
- J Boats
- Year built
- 2018
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 | 5.42 | 5.76 | 6.1 | 6.32 | 6.13 | 5.89 | 5.21 | 4.41 |
| 8 | 6.41 | 6.68 | 6.94 | 7.1 | 7.03 | 6.94 | 6.48 | 5.52 |
| 10 | 6.94 | 7.11 | 7.28 | 7.52 | 7.53 | 7.48 | 7.19 | 6.5 |
| 12 | 7.16 | 7.36 | 7.56 | 7.86 | 7.97 | 8 | 7.66 | 7.11 |
| 14 | 7.27 | 7.5 | 7.83 | 8.11 | 8.46 | 8.53 | 8.2 | 7.45 |
| 16 | 7.32 | 7.59 | 8 | 8.3 | 8.92 | 8.94 | 8.8 | 7.8 |
| 20 | 7.37 | 7.66 | 8.16 | 8.69 | 9.62 | 10.02 | 10.5 | 8.88 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 3.53 | 144° | 3.82 |
| 8 | 41.6° | 4.28 | 147.5° | 4.78 |
| 10 | 39.8° | 4.84 | 148.5° | 5.63 |
| 12 | 38.6° | 5.09 | 151° | 6.16 |
| 14 | 37.9° | 5.21 | 174° | 6.51 |
| 16 | 37.5° | 5.26 | 177° | 7.02 |
| 20 | 37.5° | 5.28 | 177° | 7.74 |
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