WILLIAM MARTIN
ESP ELVSTROM 1/4 TONSail number ESP/ESP738_C
GPH
765
OSN
745.4
LOA
7.53 m
Displacement
1732 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5693
Medium
0.7292
High
0.8027
Triple Offshore
Low
0.7152
Medium
0.8714
High
0.9429
Boat Specifications
Dimensions
- Length overall
- 7.53 m
- Beam
- 2.64 m
- Draft
- 1.47 m
- Displacement
- 1732 kg
- Crew weight
- 230 kg
- Wetted surface
- 11.72 m²
Sails
- Mainsail
- 13.08 m²
- Genoa
- 21.68 m²
- Spinnaker
- 45.43 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- ELVSTROM 1/4 TON
- Builder
- FIBRESTER
- Designer
- P. ELVSTROM
- Year built
- 1976
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.56 | 4.73 | 4.82 | 4.72 | 4.74 | 4.61 | 4.23 | 3.65 |
| 8 | 5.15 | 5.27 | 5.35 | 5.33 | 5.45 | 5.39 | 5.08 | 4.55 |
| 10 | 5.42 | 5.53 | 5.63 | 5.64 | 5.81 | 5.79 | 5.6 | 5.24 |
| 12 | 5.55 | 5.67 | 5.81 | 5.86 | 6.08 | 6.1 | 5.94 | 5.66 |
| 14 | 5.6 | 5.75 | 5.94 | 6.05 | 6.29 | 6.36 | 6.26 | 5.97 |
| 16 | 5.63 | 5.78 | 6.04 | 6.19 | 6.43 | 6.59 | 6.56 | 6.27 |
| 20 | 5.65 | 5.83 | 6.14 | 6.4 | 6.64 | 6.93 | 7.15 | 6.85 |
| 24 | 5.58 | 5.81 | 6.19 | 6.52 | 6.63 | 7.17 | 7.79 | 7.53 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.4° | 3.08 | 147.9° | 3.16 |
| 8 | 39.1° | 3.61 | 151.6° | 3.94 |
| 10 | 37.9° | 3.89 | 156.7° | 4.6 |
| 12 | 37.5° | 4 | 171.3° | 5.15 |
| 14 | 37.6° | 4.04 | 178.1° | 5.57 |
| 16 | 37.8° | 4.05 | 178.6° | 5.87 |
| 20 | 38.5° | 4.02 | 178.6° | 6.42 |
| 24 | 40.8° | 3.87 | 178.1° | 6.97 |
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