Jack in the Box
NED J-29Sail number NED/US63281
GPH
648.2
OSN
631.1
LOA
9.449 m
Displacement
2819 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7285
Medium
0.964
High
1.0853
Triple Offshore
Low
0.93
Medium
1.1646
High
1.292
Boat Specifications
Dimensions
- Length overall
- 9.449 m
- Beam
- 3.39 m
- Draft
- 1.77 m
- Displacement
- 2819 kg
- Crew weight
- 538 kg
- Wetted surface
- 18.48 m²
Sails
- Mainsail
- 25.93 m²
- Genoa
- 32.77 m²
- Spinnaker
- 66.58 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-29
- Builder
- J-Boats
- Designer
- R.Johnstone
- Year built
- 1986
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.29 | 5.57 | 5.77 | 5.71 | 5.44 | 5.29 | 4.81 | 4.11 |
| 8 | 6.13 | 6.3 | 6.42 | 6.41 | 6.39 | 6.29 | 5.88 | 5.13 |
| 10 | 6.51 | 6.63 | 6.75 | 6.76 | 6.86 | 6.78 | 6.52 | 6 |
| 12 | 6.68 | 6.85 | 7.03 | 7.07 | 7.29 | 7.23 | 6.92 | 6.55 |
| 14 | 6.76 | 6.97 | 7.27 | 7.38 | 7.69 | 7.68 | 7.36 | 6.92 |
| 16 | 6.8 | 7.03 | 7.42 | 7.66 | 7.98 | 8.12 | 7.8 | 7.33 |
| 20 | 6.82 | 7.07 | 7.55 | 8.03 | 8.4 | 8.86 | 8.87 | 8.17 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.6° | 3.51 | 146.3° | 3.56 |
| 8 | 40.8° | 4.19 | 150.1° | 4.45 |
| 10 | 38.3° | 4.67 | 153.5° | 5.23 |
| 12 | 37.2° | 4.86 | 165° | 5.86 |
| 14 | 36.7° | 4.93 | 180° | 6.42 |
| 16 | 36.4° | 4.96 | 180° | 6.8 |
| 20 | 36.8° | 4.97 | 180° | 7.55 |
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