Jam Session
NED J-109Sail number NED/GBR6909R
GPH
622.4
OSN
605.4
LOA
10.75 m
Displacement
5109 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.744
Medium
0.9909
High
1.1222
Triple Offshore
Low
0.9569
Medium
1.221
High
1.3524
Boat Specifications
Dimensions
- Length overall
- 10.75 m
- Beam
- 3.52 m
- Draft
- 2.13 m
- Displacement
- 5109 kg
- Crew weight
- 180 kg
- Wetted surface
- 26.37 m²
Sails
- Mainsail
- 39.26 m²
- Genoa
- 29.86 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 96.47 m²
Design
- Type
- J-109
- Builder
- J Boats
- Designer
- Johnstone
- Year built
- 2001
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.22 | 5.5 | 5.72 | 5.77 | 5.82 | 5.66 | 5.12 | 4.34 |
| 8 | 6.21 | 6.49 | 6.68 | 6.84 | 6.94 | 6.8 | 6.29 | 5.44 |
| 10 | 6.82 | 7.01 | 7.16 | 7.29 | 7.44 | 7.38 | 7.08 | 6.39 |
| 12 | 7.09 | 7.26 | 7.43 | 7.47 | 7.83 | 7.8 | 7.52 | 7.01 |
| 14 | 7.2 | 7.39 | 7.64 | 7.74 | 8.12 | 8.25 | 7.95 | 7.37 |
| 16 | 7.25 | 7.46 | 7.81 | 8 | 8.35 | 8.67 | 8.43 | 7.66 |
| 20 | 7.34 | 7.53 | 7.98 | 8.44 | 8.76 | 9.2 | 9.52 | 8.42 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.2° | 3.45 | 144.5° | 3.76 |
| 8 | 40.8° | 4.17 | 148.1° | 4.71 |
| 10 | 40.2° | 4.7 | 148.8° | 5.53 |
| 12 | 39° | 4.99 | 150.2° | 6.08 |
| 14 | 38.4° | 5.1 | 174.5° | 6.44 |
| 16 | 38.2° | 5.15 | 177° | 7 |
| 20 | 38.4° | 5.26 | 178° | 7.69 |
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