Tamar
ISR SonarSail number ISR/ISR113
GPH
743.4
OSN
719.8
LOA
7.142 m
Displacement
950 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5398
Medium
0.7379
High
0.8439
Triple Offshore
Low
0.6998
Medium
0.9117
High
1.0405
Boat Specifications
Dimensions
- Length overall
- 7.142 m
- Beam
- 2.38 m
- Draft
- 1.19 m
- Displacement
- 950 kg
- Crew weight
- 295 kg
- Wetted surface
- 10.46 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
- Stability index
- 92.3
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.21 | 4.51 | 4.73 | 4.91 | 4.94 | 4.77 | 4.3 | 3.61 |
| 8 | 5.05 | 5.33 | 5.52 | 5.76 | 5.8 | 5.68 | 5.24 | 4.59 |
| 10 | 5.57 | 5.76 | 5.92 | 6.23 | 6.32 | 6.2 | 5.9 | 5.41 |
| 12 | 5.86 | 6.04 | 6.26 | 6.56 | 6.85 | 6.72 | 6.38 | 5.97 |
| 14 | 6.01 | 6.28 | 6.6 | 6.76 | 7.38 | 7.3 | 6.87 | 6.41 |
| 16 | 6.07 | 6.38 | 6.86 | 7.1 | 7.77 | 8.01 | 7.45 | 6.87 |
| 20 | 6.09 | 6.42 | 7.04 | 7.76 | 8.44 | 9.35 | 9.23 | 8.03 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.8° | 2.75 | 146.6° | 3.13 |
| 8 | 42.4° | 3.34 | 151.4° | 3.97 |
| 10 | 41.8° | 3.76 | 155.6° | 4.73 |
| 12 | 40.8° | 4.06 | 167.3° | 5.38 |
| 14 | 40.1° | 4.18 | 178.1° | 5.87 |
| 16 | 40.5° | 4.19 | 177.2° | 6.27 |
| 20 | 42.3° | 4.13 | 175.4° | 7.14 |
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