LIGO-LIGO
GRE SHAMROCKSail number GRE/GRE4947
GPH
725.7
OSN
702.4
LOA
9.046 m
Displacement
3609 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5689
Medium
0.7684
High
0.8774
Triple Offshore
Low
0.7256
Medium
0.9327
High
1.0331
Boat Specifications
Dimensions
- Length overall
- 9.046 m
- Beam
- 3.1 m
- Draft
- 1.69 m
- Displacement
- 3609 kg
- Crew weight
- 400 kg
- Wetted surface
- 18.56 m²
Sails
- Mainsail
- 17.73 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 | 4.58 | 4.8 | 4.92 | 4.82 | 4.83 | 4.69 | 4.27 | 3.65 |
| 8 | 5.37 | 5.57 | 5.7 | 5.65 | 5.78 | 5.67 | 5.25 | 4.64 |
| 10 | 5.84 | 5.99 | 6.11 | 6.16 | 6.29 | 6.23 | 5.97 | 5.46 |
| 12 | 6.09 | 6.23 | 6.35 | 6.43 | 6.6 | 6.57 | 6.38 | 6.04 |
| 14 | 6.23 | 6.38 | 6.53 | 6.58 | 6.85 | 6.84 | 6.69 | 6.4 |
| 16 | 6.3 | 6.47 | 6.67 | 6.75 | 7.07 | 7.1 | 6.96 | 6.68 |
| 20 | 6.34 | 6.52 | 6.83 | 7.03 | 7.36 | 7.6 | 7.55 | 7.21 |
| 24 | 6.32 | 6.54 | 6.9 | 7.21 | 7.56 | 7.94 | 8.23 | 7.82 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 3.02 | 146.6° | 3.17 |
| 8 | 41.5° | 3.63 | 150.5° | 4.02 |
| 10 | 40° | 4.06 | 153.4° | 4.74 |
| 12 | 38.7° | 4.33 | 160.8° | 5.37 |
| 14 | 38.5° | 4.45 | 174.5° | 5.89 |
| 16 | 38.2° | 4.51 | 178.1° | 6.27 |
| 20 | 38.7° | 4.5 | 179° | 6.81 |
| 24 | 40° | 4.42 | 178.6° | 7.3 |
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