Tamar
ISR SonarSail number ISR/ISR113
GPH
746.5
OSN
722.4
LOA
7.142 m
Displacement
950 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.541
Medium
0.7394
High
0.8468
Triple Offshore
Low
0.6994
Medium
0.9069
High
1.0328
Boat Specifications
Dimensions
- Length overall
- 7.142 m
- Beam
- 2.38 m
- Draft
- 1.19 m
- Displacement
- 950 kg
- Crew weight
- 308 kg
- Wetted surface
- 11.28 m²
Sails
- Mainsail
- 18.09 m²
- Genoa
- 8.56 m²
- Spinnaker
- 31.76 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Sonar
- Builder
- Sonar (UK) Ltd
- Designer
- Kirby
- Year built
- 1979
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.3 | 4.55 | 4.72 | 4.87 | 4.89 | 4.74 | 4.24 | 3.55 |
| 8 | 5.1 | 5.31 | 5.46 | 5.69 | 5.72 | 5.61 | 5.15 | 4.53 |
| 10 | 5.56 | 5.73 | 5.87 | 6.14 | 6.23 | 6.12 | 5.84 | 5.34 |
| 12 | 5.84 | 6 | 6.18 | 6.46 | 6.69 | 6.59 | 6.28 | 5.91 |
| 14 | 6.01 | 6.21 | 6.47 | 6.63 | 7.14 | 7.09 | 6.73 | 6.32 |
| 16 | 6.09 | 6.34 | 6.7 | 6.88 | 7.56 | 7.69 | 7.24 | 6.73 |
| 20 | 6.13 | 6.44 | 6.94 | 7.48 | 8.28 | 9.41 | 9.07 | 7.81 |
| 24 | 6.14 | 6.46 | 7.05 | 7.88 | 9.19 | 10.83 | 12.69 | 10.8 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.9° | 2.79 | 146.2° | 3.07 |
| 8 | 41.6° | 3.4 | 151.2° | 3.93 |
| 10 | 40.5° | 3.81 | 157.2° | 4.66 |
| 12 | 39.8° | 4.09 | 170.4° | 5.33 |
| 14 | 39.1° | 4.23 | 178.1° | 5.83 |
| 16 | 39.3° | 4.26 | 178.8° | 6.21 |
| 20 | 41.5° | 4.19 | 177.5° | 6.99 |
| 24 | 43.1° | 4.12 | 140.7° | 9.36 |
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