Astra
RSA TumlarenSail number RSA/RSA4763
GPH
793.1
OSN
769.6
LOA
8.281 m
Displacement
1814 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5115
Medium
0.6919
High
0.7835
Triple Offshore
Low
0.6615
Medium
0.8563
High
0.9448
Boat Specifications
Dimensions
- Length overall
- 8.281 m
- Beam
- 1.88 m
- Draft
- 1.28 m
- Displacement
- 1814 kg
- Crew weight
- 250 kg
- Wetted surface
- 14.27 m²
Sails
- Mainsail
- 16.12 m²
- Genoa
- 9.5 m²
- Spinnaker
- 35.09 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Tumlaren
- Builder
- Unknown
- Designer
- Knud H. Reimers
- Year built
- 1934
- Stability index
- 137.7
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.03 | 4.24 | 4.37 | 4.62 | 4.67 | 4.41 | 3.92 | 3.34 |
| 8 | 4.79 | 5.01 | 5.2 | 5.43 | 5.6 | 5.49 | 4.94 | 4.31 |
| 10 | 5.24 | 5.46 | 5.68 | 5.81 | 6.06 | 6.04 | 5.76 | 5.17 |
| 12 | 5.44 | 5.68 | 5.93 | 6.03 | 6.34 | 6.39 | 6.2 | 5.83 |
| 14 | 5.54 | 5.78 | 6.07 | 6.23 | 6.54 | 6.69 | 6.58 | 6.23 |
| 16 | 5.6 | 5.84 | 6.15 | 6.39 | 6.7 | 6.94 | 6.95 | 6.58 |
| 20 | 5.64 | 5.89 | 6.24 | 6.57 | 6.95 | 7.28 | 7.71 | 7.35 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 2.64 | 146.6° | 2.9 |
| 8 | 41.2° | 3.21 | 151.1° | 3.74 |
| 10 | 40.2° | 3.55 | 152.3° | 4.48 |
| 12 | 40.5° | 3.69 | 160.1° | 5.18 |
| 14 | 40.6° | 3.75 | 174.8° | 5.71 |
| 16 | 40.8° | 3.78 | 178.4° | 6.11 |
| 20 | 41.8° | 3.78 | 178.4° | 6.78 |
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