Amazing Grace
RSA Bongers 39Sail number RSA/RSA1282
GPH
665
OSN
639.9
LOA
12.67 m
Displacement
10500 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5836
Medium
0.8282
High
1.0073
Triple Offshore
Low
0.7557
Medium
1.0314
High
1.2012
Boat Specifications
Dimensions
- Length overall
- 12.67 m
- Beam
- 3.71 m
- Draft
- 1.8 m
- Displacement
- 10500 kg
- Crew weight
- 866 kg
- Wetted surface
- 38.04 m²
Sails
- Mainsail
- 31.2 m²
- Genoa
- 46.17 m²
- Spinnaker
- 95.45 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Bongers 39
- Builder
- Bongers Marine
- Designer
- Bongers/Du Toit
- Year built
- 1992
- Stability index
- 105.3
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.75 | 5.05 | 5.23 | 5.1 | 5.07 | 4.92 | 4.43 | 3.73 |
| 8 | 5.74 | 6.03 | 6.19 | 6.08 | 6.22 | 6.07 | 5.55 | 4.83 |
| 10 | 6.43 | 6.7 | 6.89 | 6.89 | 7.08 | 6.96 | 6.48 | 5.78 |
| 12 | 6.94 | 7.17 | 7.35 | 7.43 | 7.62 | 7.55 | 7.2 | 6.58 |
| 14 | 7.28 | 7.47 | 7.64 | 7.73 | 7.96 | 7.93 | 7.68 | 7.21 |
| 16 | 7.47 | 7.65 | 7.84 | 7.9 | 8.21 | 8.22 | 8.02 | 7.66 |
| 20 | 7.63 | 7.83 | 8.1 | 8.24 | 8.65 | 8.76 | 8.64 | 8.26 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 45.3° | 3.05 | 146.2° | 3.23 |
| 8 | 43° | 3.77 | 149.3° | 4.18 |
| 10 | 41.5° | 4.32 | 152° | 5.01 |
| 12 | 40.6° | 4.75 | 155.6° | 5.74 |
| 14 | 39.7° | 5.07 | 160.4° | 6.38 |
| 16 | 39.3° | 5.26 | 171.2° | 6.95 |
| 20 | 38.4° | 5.43 | 179° | 7.78 |
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