LIGO-LIGO
GRE SHAMROCKSail number GRE/GRE4947
GPH
730.5
OSN
706.8
LOA
9.046 m
Displacement
3609 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5565
Medium
0.7592
High
0.885
Triple Offshore
Low
0.7125
Medium
0.9289
High
1.0452
Boat Specifications
Dimensions
- Length overall
- 9.046 m
- Beam
- 3.1 m
- Draft
- 1.69 m
- Displacement
- 3609 kg
- Crew weight
- 500 kg
- Wetted surface
- 18.67 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
- Stability index
- 120.1
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.41 | 4.65 | 4.82 | 4.75 | 4.78 | 4.65 | 4.26 | 3.68 |
| 8 | 5.21 | 5.49 | 5.68 | 5.67 | 5.8 | 5.67 | 5.21 | 4.62 |
| 10 | 5.8 | 5.99 | 6.13 | 6.23 | 6.32 | 6.26 | 6 | 5.45 |
| 12 | 6.11 | 6.25 | 6.37 | 6.53 | 6.65 | 6.6 | 6.4 | 6.07 |
| 14 | 6.28 | 6.42 | 6.57 | 6.69 | 6.95 | 6.91 | 6.71 | 6.42 |
| 16 | 6.37 | 6.54 | 6.74 | 6.83 | 7.23 | 7.23 | 7.03 | 6.71 |
| 20 | 6.42 | 6.63 | 6.98 | 7.2 | 7.54 | 7.75 | 7.66 | 7.31 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43° | 2.9 | 147.8° | 3.19 |
| 8 | 41.4° | 3.45 | 152° | 4.01 |
| 10 | 42° | 3.9 | 152° | 4.73 |
| 12 | 40.2° | 4.27 | 159.5° | 5.39 |
| 14 | 39.3° | 4.46 | 173.9° | 5.93 |
| 16 | 38.7° | 4.55 | 179° | 6.3 |
| 20 | 38.5° | 4.58 | 179° | 6.85 |
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