JAMBO
ESP FIRST 31.7Sail number ESP/ESP7145
GPH
667.8
OSN
647.5
LOA
9.49 m
Displacement
3990 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6857
Medium
0.9325
High
1.0708
Triple Offshore
Low
0.88
Medium
1.1434
High
1.275
Boat Specifications
Dimensions
- Length overall
- 9.49 m
- Beam
- 3.22 m
- Draft
- 1.94 m
- Displacement
- 3990 kg
- Crew weight
- 350 kg
- Wetted surface
- 22.59 m²
Sails
- Mainsail
- 26.36 m²
- Genoa
- 29.87 m²
- Spinnaker
- 63.56 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 31.7
- Builder
- BENETEAU
- Designer
- FINOT
- Year built
- 1998
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.91 | 5.16 | 5.35 | 5.28 | 5.2 | 5.05 | 4.58 | 3.88 |
| 8 | 5.83 | 6.09 | 6.27 | 6.23 | 6.3 | 6.15 | 5.62 | 4.92 |
| 10 | 6.44 | 6.62 | 6.76 | 6.8 | 6.9 | 6.82 | 6.47 | 5.8 |
| 12 | 6.7 | 6.86 | 7.01 | 7.05 | 7.26 | 7.2 | 6.94 | 6.53 |
| 14 | 6.79 | 6.97 | 7.2 | 7.29 | 7.59 | 7.57 | 7.29 | 6.95 |
| 16 | 6.83 | 7.02 | 7.32 | 7.52 | 7.83 | 7.96 | 7.69 | 7.28 |
| 20 | 6.84 | 7.05 | 7.41 | 7.87 | 8.19 | 8.57 | 8.58 | 8.04 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.1° | 3.26 | 146.4° | 3.36 |
| 8 | 40.4° | 3.93 | 150.4° | 4.26 |
| 10 | 39.9° | 4.44 | 152.6° | 5.03 |
| 12 | 39° | 4.71 | 157.6° | 5.73 |
| 14 | 38.3° | 4.82 | 180° | 6.36 |
| 16 | 38.1° | 4.86 | 180° | 6.83 |
| 20 | 38.2° | 4.88 | 180° | 7.48 |
Loading polar chart…