DIRTY HARRY
USA J 29 MH OBSail number USA/USA40561
GPH
647.9
OSN
629.4
LOA
8.989 m
Displacement
2477 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6528
Medium
0.8594
High
0.9695
Triple Offshore
Low
0.8288
Medium
1.0347
High
1.1481
Boat Specifications
Dimensions
- Length overall
- 8.989 m
- Beam
- 3.39 m
- Draft
- 1.74 m
- Displacement
- 2477 kg
- Crew weight
- 567 kg
- Wetted surface
- 18 m²
Sails
- Mainsail
- 23.89 m²
- Genoa
- 35.17 m²
- Spinnaker
- 67.16 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J 29 MH OB
- Builder
- TPI
- Designer
- Rod Johnstone
- Year built
- 1982
- Stability index
- 102.4
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.43 | 5.66 | 5.77 | 5.65 | 5.36 | 5.22 | 4.74 | 4.03 |
| 8 | 6.18 | 6.32 | 6.4 | 6.34 | 6.3 | 6.19 | 5.79 | 5.09 |
| 10 | 6.53 | 6.65 | 6.75 | 6.74 | 6.82 | 6.74 | 6.45 | 5.94 |
| 12 | 6.71 | 6.86 | 7.02 | 7.06 | 7.23 | 7.19 | 6.9 | 6.51 |
| 14 | 6.8 | 6.97 | 7.22 | 7.33 | 7.57 | 7.61 | 7.33 | 6.92 |
| 16 | 6.86 | 7.05 | 7.35 | 7.57 | 7.88 | 8.02 | 7.76 | 7.32 |
| 20 | 6.92 | 7.13 | 7.51 | 7.92 | 8.38 | 9.03 | 8.97 | 8.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.63 | 145.7° | 3.49 |
| 8 | 39.6° | 4.31 | 150.2° | 4.4 |
| 10 | 37.2° | 4.74 | 154.1° | 5.17 |
| 12 | 36.3° | 4.91 | 161.8° | 5.81 |
| 14 | 35.8° | 4.99 | 176.6° | 6.34 |
| 16 | 35.7° | 5.04 | 177.2° | 6.75 |
| 20 | 36° | 5.05 | 178.4° | 7.49 |
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