LIGO-LIGO
GRE SHAMROCKSail number GRE/GRE4947
GPH
726.2
OSN
703.9
LOA
9.046 m
Displacement
3609 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6344
Medium
0.8582
High
0.9921
Triple Offshore
Low
0.8096
Medium
1.0496
High
1.1763
Boat Specifications
Dimensions
- Length overall
- 9.046 m
- Beam
- 3.1 m
- Draft
- 1.69 m
- Displacement
- 3609 kg
- Crew weight
- 485 kg
- Wetted surface
- 18.59 m²
Sails
- Mainsail
- 17.72 m²
- Genoa
- 31.23 m²
- Spinnaker
- 62.03 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- SHAMROCK
- Builder
- SOUTH COAST BOATY.
- Designer
- R. HOLLAND
- Year built
- 1975
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.45 | 4.66 | 4.83 | 4.79 | 4.81 | 4.69 | 4.31 | 3.73 |
| 8 | 5.23 | 5.49 | 5.69 | 5.68 | 5.82 | 5.7 | 5.26 | 4.65 |
| 10 | 5.83 | 6.01 | 6.14 | 6.25 | 6.34 | 6.27 | 6.02 | 5.46 |
| 12 | 6.13 | 6.27 | 6.39 | 6.53 | 6.67 | 6.61 | 6.41 | 6.09 |
| 14 | 6.28 | 6.43 | 6.59 | 6.69 | 6.98 | 6.94 | 6.72 | 6.43 |
| 16 | 6.35 | 6.53 | 6.76 | 6.85 | 7.25 | 7.26 | 7.04 | 6.71 |
| 20 | 6.38 | 6.6 | 6.97 | 7.21 | 7.53 | 7.77 | 7.66 | 7.3 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.3° | 2.95 | 148.1° | 3.23 |
| 8 | 41.1° | 3.5 | 152° | 4.03 |
| 10 | 41.6° | 3.94 | 152.2° | 4.74 |
| 12 | 40.3° | 4.29 | 161.2° | 5.39 |
| 14 | 39.4° | 4.45 | 180° | 5.97 |
| 16 | 39° | 4.51 | 180° | 6.33 |
| 20 | 39.4° | 4.51 | 180° | 6.89 |
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