Jam Session
NED J-109Sail number NED/GBR6909R
GPH
623
OSN
604.2
LOA
10.75 m
Displacement
5109 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6524
Medium
0.8826
High
1.0033
Triple Offshore
Low
0.8409
Medium
1.0883
High
1.2137
Boat Specifications
Dimensions
- Length overall
- 10.75 m
- Beam
- 3.52 m
- Draft
- 2.14 m
- Displacement
- 5109 kg
- Crew weight
- 639 kg
- Wetted surface
- 26.2 m²
Sails
- Mainsail
- 37.55 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
- Stability index
- 120
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.12 | 5.42 | 5.65 | 5.72 | 5.79 | 5.64 | 5.11 | 4.35 |
| 8 | 6.1 | 6.4 | 6.62 | 6.83 | 6.94 | 6.81 | 6.31 | 5.47 |
| 10 | 6.79 | 6.98 | 7.13 | 7.34 | 7.48 | 7.4 | 7.12 | 6.44 |
| 12 | 7.11 | 7.28 | 7.43 | 7.56 | 7.89 | 7.86 | 7.58 | 7.07 |
| 14 | 7.25 | 7.44 | 7.67 | 7.74 | 8.27 | 8.35 | 8.04 | 7.42 |
| 16 | 7.31 | 7.52 | 7.86 | 8.03 | 8.52 | 8.82 | 8.54 | 7.72 |
| 20 | 7.38 | 7.57 | 8.04 | 8.5 | 8.96 | 9.49 | 9.74 | 8.42 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.34 | 144.8° | 3.77 |
| 8 | 41.4° | 4.06 | 147.9° | 4.74 |
| 10 | 40.8° | 4.65 | 148.8° | 5.58 |
| 12 | 39° | 5.02 | 150.2° | 6.12 |
| 14 | 38.4° | 5.16 | 152.4° | 6.44 |
| 16 | 38.2° | 5.23 | 174.8° | 6.95 |
| 20 | 37.8° | 5.33 | 176.6° | 7.65 |
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