JOY OF FREEDOM
GRE GIBSEA 31Sail number GRE/GRE49362
GPH
706.9
OSN
683.7
LOA
9.54 m
Displacement
3886 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5665
Medium
0.7835
High
0.9057
Triple Offshore
Low
0.7318
Medium
0.9638
High
1.0787
Boat Specifications
Dimensions
- Length overall
- 9.54 m
- Beam
- 3.3 m
- Draft
- 1.74 m
- Displacement
- 3886 kg
- Crew weight
- 514 kg
- Wetted surface
- 22.37 m²
Sails
- Mainsail
- 23.73 m²
- Genoa
- 31.72 m²
- Spinnaker
- 61.62 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- GIBSEA 31
- Builder
- GIBERT MARINE
- Designer
- Jacques Fauroux
- Year built
- 1984
- Stability index
- 102.9
Velocity Prediction
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.58 | 4.86 | 5.06 | 4.99 | 4.93 | 4.78 | 4.3 | 3.66 |
| 8 | 5.45 | 5.75 | 5.96 | 5.92 | 6 | 5.84 | 5.3 | 4.67 |
| 10 | 6.08 | 6.28 | 6.43 | 6.51 | 6.59 | 6.5 | 6.17 | 5.54 |
| 12 | 6.38 | 6.54 | 6.69 | 6.8 | 6.94 | 6.87 | 6.63 | 6.26 |
| 14 | 6.5 | 6.67 | 6.88 | 6.96 | 7.27 | 7.22 | 6.97 | 6.66 |
| 16 | 6.54 | 6.73 | 7.01 | 7.18 | 7.57 | 7.58 | 7.33 | 6.98 |
| 20 | 6.56 | 6.76 | 7.11 | 7.52 | 7.89 | 8.22 | 8.1 | 7.67 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.8° | 2.97 | 146.9° | 3.17 |
| 8 | 42.3° | 3.6 | 151.4° | 4.04 |
| 10 | 41.8° | 4.1 | 152.9° | 4.81 |
| 12 | 40.6° | 4.44 | 158.3° | 5.53 |
| 14 | 39.6° | 4.57 | 171.8° | 6.11 |
| 16 | 39.3° | 4.62 | 178.1° | 6.54 |
| 20 | 39.6° | 4.6 | 179° | 7.15 |
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