JACOBI
GRE TWISTER 28Sail number GRE/GBR5379T
GPH
799.2
OSN
771.9
LOA
8.61 m
Displacement
4521 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.4942
Medium
0.6836
High
0.8268
Triple Offshore
Low
0.6375
Medium
0.8537
High
0.9851
Boat Specifications
Dimensions
- Length overall
- 8.61 m
- Beam
- 2.46 m
- Draft
- 1.53 m
- Displacement
- 4521 kg
- Crew weight
- 400 kg
- Wetted surface
- 19.99 m²
Sails
- Mainsail
- 15.79 m²
- Genoa
- 23.18 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 45.78 m²
Design
- Type
- TWISTER 28
- Builder
- TYLER
- Designer
- KIM HOLMAN
- Year built
- 1964
- Stability index
- 116.9
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 3.85 | 4.1 | 4.26 | 4.34 | 4.42 | 4.29 | 3.91 | 3.36 |
| 8 | 4.59 | 4.84 | 5.03 | 5.25 | 5.36 | 5.21 | 4.8 | 4.25 |
| 10 | 5.15 | 5.44 | 5.67 | 5.95 | 6.03 | 5.95 | 5.59 | 4.99 |
| 12 | 5.64 | 5.87 | 6.04 | 6.28 | 6.36 | 6.32 | 6.1 | 5.67 |
| 14 | 5.93 | 6.1 | 6.25 | 6.45 | 6.61 | 6.57 | 6.39 | 6.11 |
| 16 | 6.09 | 6.25 | 6.4 | 6.61 | 6.84 | 6.82 | 6.64 | 6.38 |
| 20 | 6.19 | 6.36 | 6.61 | 6.8 | 7.17 | 7.3 | 7.15 | 6.85 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44.4° | 2.48 | 146.6° | 2.91 |
| 8 | 42.4° | 3.02 | 151.4° | 3.69 |
| 10 | 41.8° | 3.41 | 155.6° | 4.34 |
| 12 | 42° | 3.75 | 157.4° | 4.96 |
| 14 | 41.8° | 4.04 | 169.1° | 5.54 |
| 16 | 41.1° | 4.21 | 177.2° | 6 |
| 20 | 40.5° | 4.31 | 179° | 6.51 |
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