LAROS
AUS Ultimate 18 Drop KeelSail number AUS/18
GPH
892.8
OSN
860.3
LOA
5.46 m
Displacement
846 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.4547
Medium
0.622
High
0.7329
Triple Offshore
Low
0.5788
Medium
0.7604
High
0.871
Boat Specifications
Dimensions
- Length overall
- 5.46 m
- Beam
- 2.15 m
- Draft
- 1.15 m
- Displacement
- 846 kg
- Crew weight
- 253 kg
- Wetted surface
- 9.09 m²
Sails
- Mainsail
- 7.63 m²
- Genoa
- 9.83 m²
- Spinnaker
- 22.33 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Ultimate 18 Drop Keel
- Builder
- Harry Twikler
- Designer
- Gerry Fletcher
- Year built
- 1977
- Stability index
- -1
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 4 | 2.61 | 2.75 | 2.83 | 2.85 | 2.9 | 2.78 | 2.49 | 2.13 |
| 6 | 3.51 | 3.68 | 3.78 | 3.9 | 3.96 | 3.83 | 3.47 | 3.05 |
| 8 | 4.15 | 4.32 | 4.45 | 4.69 | 4.73 | 4.63 | 4.28 | 3.87 |
| 10 | 4.61 | 4.77 | 4.9 | 5.18 | 5.2 | 5.14 | 4.94 | 4.55 |
| 12 | 4.92 | 5.06 | 5.19 | 5.46 | 5.53 | 5.47 | 5.31 | 5.06 |
| 14 | 5.12 | 5.25 | 5.4 | 5.64 | 5.83 | 5.78 | 5.61 | 5.37 |
| 16 | 5.26 | 5.39 | 5.58 | 5.75 | 6.1 | 6.1 | 5.92 | 5.65 |
| 20 | 5.32 | 5.5 | 5.82 | 6 | 6.57 | 6.75 | 6.57 | 6.22 |
| 24 | 5.26 | 5.49 | 5.91 | 6.28 | 6.84 | 7.37 | 7.4 | 6.9 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 4 | 43.2° | 1.69 | 150.2° | 1.83 |
| 6 | 43.2° | 2.31 | 150.2° | 2.64 |
| 8 | 41.6° | 2.78 | 155.2° | 3.37 |
| 10 | 41.1° | 3.11 | 159.5° | 4 |
| 12 | 40.4° | 3.38 | 165.5° | 4.57 |
| 14 | 39.1° | 3.62 | 175.4° | 4.98 |
| 16 | 37.9° | 3.77 | 177.9° | 5.27 |
| 20 | 38.5° | 3.75 | 177.7° | 5.78 |
| 24 | 41.1° | 3.57 | 176.3° | 6.31 |
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