ALTAIR
ESP FIRST 305Sail number ESP/ESP2631_C
GPH
706.6
OSN
685.3
LOA
9.37 m
Displacement
4009 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6499
Medium
0.8808
High
1.0095
Triple Offshore
Low
0.8323
Medium
1.08
High
1.2033
Boat Specifications
Dimensions
- Length overall
- 9.37 m
- Beam
- 3.22 m
- Draft
- 1.76 m
- Displacement
- 4009 kg
- Crew weight
- 400 kg
- Wetted surface
- 20.03 m²
Sails
- Mainsail
- 20.62 m²
- Genoa
- 32.3 m²
- Spinnaker
- 60.36 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- FIRST 305
- Builder
- BENETEAU
- Designer
- J. BERRET
- Year built
- 1986
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.64 | 4.87 | 5.05 | 4.99 | 4.88 | 4.75 | 4.34 | 3.72 |
| 8 | 5.49 | 5.76 | 5.94 | 5.91 | 5.94 | 5.79 | 5.32 | 4.69 |
| 10 | 6.08 | 6.25 | 6.39 | 6.42 | 6.51 | 6.43 | 6.15 | 5.52 |
| 12 | 6.34 | 6.49 | 6.63 | 6.71 | 6.84 | 6.78 | 6.58 | 6.21 |
| 14 | 6.46 | 6.63 | 6.82 | 6.89 | 7.15 | 7.11 | 6.89 | 6.59 |
| 16 | 6.52 | 6.71 | 6.97 | 7.09 | 7.44 | 7.44 | 7.21 | 6.88 |
| 20 | 6.53 | 6.74 | 7.14 | 7.45 | 7.74 | 8.02 | 7.89 | 7.49 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.2° | 3.08 | 147.5° | 3.22 |
| 8 | 41° | 3.67 | 151.4° | 4.06 |
| 10 | 41.3° | 4.14 | 152.7° | 4.79 |
| 12 | 40.3° | 4.43 | 158.5° | 5.48 |
| 14 | 39.5° | 4.54 | 180° | 6.08 |
| 16 | 39.5° | 4.59 | 180° | 6.49 |
| 20 | 40.5° | 4.54 | 180° | 7.06 |
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