Zikk Zakk 8
NOR J-70 ONE DESIGNSail number NOR/NOR998
GPH
655.9
OSN
645.6
LOA
6.91 m
Displacement
815 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.7243
Medium
0.905
High
1.0254
Triple Offshore
Low
0.9329
Medium
1.1386
High
1.2912
Boat Specifications
Dimensions
- Length overall
- 6.91 m
- Beam
- 2.25 m
- Draft
- 1.38 m
- Displacement
- 815 kg
- Crew weight
- 347 kg
- Wetted surface
- 10.85 m²
Sails
- Mainsail
- 16.06 m²
- Genoa
- 11.11 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 49.18 m²
Design
- Type
- J-70 ONE DESIGN
- Builder
- J/Boats
- Designer
- Alan Johnstone
- Year built
- 1920
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.45 | 5.75 | 5.97 | 6 | 5.63 | 5.39 | 4.8 | 4.07 |
| 8 | 6 | 6.2 | 6.49 | 6.53 | 6.33 | 6.23 | 5.86 | 5.12 |
| 10 | 6.18 | 6.42 | 6.83 | 7.11 | 7.04 | 6.93 | 6.5 | 5.89 |
| 12 | 6.27 | 6.56 | 7.05 | 7.5 | 7.87 | 7.8 | 7.2 | 6.41 |
| 14 | 6.31 | 6.65 | 7.2 | 7.78 | 8.65 | 8.57 | 8.09 | 6.98 |
| 16 | 6.33 | 6.7 | 7.37 | 8.02 | 9.12 | 9.52 | 9.15 | 7.77 |
| 20 | 6.41 | 6.81 | 7.49 | 8.52 | 9.96 | 10.86 | 12.24 | 10.28 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44.2° | 3.52 | 144.9° | 3.52 |
| 8 | 40.9° | 4.13 | 147.5° | 4.43 |
| 10 | 39.4° | 4.35 | 149.7° | 5.1 |
| 12 | 38.7° | 4.41 | 148.1° | 5.55 |
| 14 | 38.9° | 4.44 | 145.1° | 6.05 |
| 16 | 39.3° | 4.42 | 143.4° | 6.73 |
| 20 | 40.5° | 4.39 | 138.1° | 8.9 |
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