Hill Billy
RSA J-27Sail number RSA/RSA198
GPH
673.6
OSN
656.3
LOA
8.36 m
Displacement
1780 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6757
Medium
0.9164
High
1.051
Triple Offshore
Low
0.8794
Medium
1.127
High
1.2746
Boat Specifications
Dimensions
- Length overall
- 8.36 m
- Beam
- 2.6 m
- Draft
- 1.52 m
- Displacement
- 1780 kg
- Crew weight
- 433 kg
- Wetted surface
- 15.36 m²
Sails
- Mainsail
- 23.68 m²
- Genoa
- 23.76 m²
- Spinnaker
- 42.87 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-27
- Builder
- DP Yachting
- Designer
- Johnstone
- Year built
- 1983
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.99 | 5.32 | 5.62 | 5.63 | 5.26 | 5.08 | 4.56 | 3.79 |
| 8 | 5.91 | 6.15 | 6.33 | 6.34 | 6.23 | 6.1 | 5.58 | 4.81 |
| 10 | 6.34 | 6.52 | 6.7 | 6.73 | 6.7 | 6.6 | 6.31 | 5.71 |
| 12 | 6.5 | 6.71 | 7.05 | 7.13 | 7.22 | 7.07 | 6.72 | 6.35 |
| 14 | 6.58 | 6.83 | 7.27 | 7.55 | 7.77 | 7.62 | 7.2 | 6.74 |
| 16 | 6.64 | 6.9 | 7.4 | 7.87 | 8.12 | 8.27 | 7.73 | 7.18 |
| 20 | 6.72 | 7.01 | 7.53 | 8.12 | 8.73 | 9.36 | 9.17 | 8.24 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.8° | 3.24 | 146.4° | 3.28 |
| 8 | 42.8° | 3.9 | 150.8° | 4.17 |
| 10 | 40.7° | 4.38 | 152.1° | 4.96 |
| 12 | 39.2° | 4.59 | 163.2° | 5.67 |
| 14 | 38.2° | 4.7 | 180° | 6.26 |
| 16 | 37.8° | 4.76 | 180° | 6.64 |
| 20 | 38.1° | 4.79 | 180° | 7.49 |
Loading polar chart…