Maritimo Katwinchar
AUS 31 ft RaterSail number AUS/CYC8
GPH
720.4
OSN
695.9
LOA
9.961 m
Displacement
4655 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5592
Medium
0.7712
High
0.9016
Triple Offshore
Low
0.7191
Medium
0.9445
High
1.0631
Boat Specifications
Dimensions
- Length overall
- 9.961 m
- Beam
- 2.66 m
- Draft
- 1.62 m
- Displacement
- 4655 kg
- Crew weight
- 335 kg
- Wetted surface
- 20.84 m²
Sails
- Mainsail
- 25.55 m²
- Genoa
- 21.51 m²
- Spinnaker
- 53.82 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- 31 ft Rater
- Builder
- Whatford Brewerys
- Designer
- Whatford
- Year built
- 1904
- Stability index
- 123.9
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 4 | 3.35 | 3.56 | 3.68 | 3.55 | 3.58 | 3.42 | 3.03 | 2.47 |
| 6 | 4.5 | 4.74 | 4.9 | 4.84 | 4.9 | 4.72 | 4.22 | 3.59 |
| 8 | 5.32 | 5.55 | 5.72 | 5.79 | 5.87 | 5.72 | 5.21 | 4.61 |
| 10 | 5.88 | 6.07 | 6.22 | 6.36 | 6.44 | 6.36 | 6.04 | 5.46 |
| 12 | 6.21 | 6.37 | 6.51 | 6.67 | 6.77 | 6.72 | 6.52 | 6.15 |
| 14 | 6.4 | 6.56 | 6.71 | 6.86 | 7.02 | 6.98 | 6.83 | 6.56 |
| 16 | 6.52 | 6.69 | 6.86 | 6.96 | 7.25 | 7.23 | 7.1 | 6.85 |
| 20 | 6.62 | 6.81 | 7.09 | 7.24 | 7.6 | 7.74 | 7.64 | 7.37 |
| 24 | 6.65 | 6.86 | 7.21 | 7.48 | 7.81 | 8.17 | 8.3 | 7.95 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 4 | 44° | 2.13 | 147.3° | 2.14 |
| 6 | 44° | 2.94 | 147.3° | 3.11 |
| 8 | 41.5° | 3.57 | 151.8° | 3.99 |
| 10 | 40.4° | 4.02 | 154.1° | 4.75 |
| 12 | 39.5° | 4.34 | 160.8° | 5.45 |
| 14 | 38.9° | 4.53 | 167.5° | 6 |
| 16 | 38.5° | 4.63 | 177.2° | 6.41 |
| 20 | 38.3° | 4.72 | 179° | 6.97 |
| 24 | 38.9° | 4.71 | 178.6° | 7.45 |
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