YACHTZY
USA S2 9.1Sail number USA/USA33539
GPH
667.1
OSN
650.6
LOA
9.145 m
Displacement
3445 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6224
Medium
0.8298
High
0.9359
Triple Offshore
Low
0.7996
Medium
1.0084
High
1.1141
Boat Specifications
Dimensions
- Length overall
- 9.145 m
- Beam
- 3.22 m
- Draft
- 1.69 m
- Displacement
- 3445 kg
- Crew weight
- 488 kg
- Wetted surface
- 19.62 m²
Sails
- Mainsail
- 27.5 m²
- Genoa
- 34.6 m²
- Spinnaker
- 69.82 m²
- Asymmetric spinnaker
- 72.84 m²
Design
- Type
- S2 9.1
- Builder
- S2
- Designer
- G&S
- Year built
- 1983
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.03 | 5.32 | 5.58 | 5.51 | 5.4 | 5.23 | 4.73 | 4.04 |
| 8 | 5.91 | 6.14 | 6.29 | 6.28 | 6.33 | 6.22 | 5.78 | 5.04 |
| 10 | 6.36 | 6.5 | 6.62 | 6.68 | 6.76 | 6.69 | 6.44 | 5.91 |
| 12 | 6.56 | 6.71 | 6.86 | 6.92 | 7.14 | 7.07 | 6.82 | 6.48 |
| 14 | 6.64 | 6.82 | 7.08 | 7.16 | 7.5 | 7.48 | 7.21 | 6.83 |
| 16 | 6.68 | 6.88 | 7.22 | 7.41 | 7.76 | 7.87 | 7.61 | 7.18 |
| 20 | 6.68 | 6.91 | 7.34 | 7.76 | 8.06 | 8.43 | 8.41 | 7.92 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.31 | 147° | 3.5 |
| 8 | 42° | 3.94 | 151° | 4.36 |
| 10 | 40.5° | 4.43 | 153° | 5.14 |
| 12 | 39.4° | 4.65 | 164° | 5.8 |
| 14 | 38.8° | 4.74 | 180° | 6.35 |
| 16 | 38.6° | 4.78 | 180° | 6.72 |
| 20 | 39.2° | 4.74 | 180° | 7.4 |
Loading polar chart…