AIR FORCE
USA EXPRESS 27Sail number USA/108
GPH
656.9
OSN
640.2
LOA
8.309 m
Displacement
1075 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6107
Medium
0.8268
High
0.9313
Triple Offshore
Low
0.797
Medium
1.0286
High
1.172
Boat Specifications
Dimensions
- Length overall
- 8.309 m
- Beam
- 2.46 m
- Draft
- 1.33 m
- Displacement
- 1075 kg
- Crew weight
- 454 kg
- Wetted surface
- 12.81 m²
Sails
- Mainsail
- 17.37 m²
- Genoa
- 19.26 m²
- Spinnaker
- 38.87 m²
- Asymmetric spinnaker
- 37.13 m²
Design
- Type
- EXPRESS 27
- Builder
- ALSBERG
- Designer
- SCHUMACHER
- Year built
- 1982
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.08 | 5.43 | 5.7 | 5.76 | 5.53 | 5.19 | 4.64 | 3.84 |
| 8 | 6.01 | 6.22 | 6.37 | 6.51 | 6.37 | 6.21 | 5.77 | 4.9 |
| 10 | 6.41 | 6.59 | 6.82 | 7.09 | 6.96 | 6.82 | 6.44 | 5.85 |
| 12 | 6.58 | 6.86 | 7.25 | 7.66 | 7.65 | 7.52 | 7.01 | 6.48 |
| 14 | 6.65 | 6.98 | 7.53 | 8.02 | 8.45 | 8.34 | 7.67 | 7.01 |
| 16 | 6.68 | 7.04 | 7.68 | 8.34 | 9.3 | 9.24 | 8.5 | 7.59 |
| 20 | 6.68 | 7.06 | 7.78 | 8.73 | 10.52 | 11.36 | 10.84 | 9.14 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.5° | 3.28 | 145° | 3.33 |
| 8 | 43.1° | 3.99 | 149° | 4.24 |
| 10 | 40.1° | 4.49 | 151.5° | 5.08 |
| 12 | 39° | 4.63 | 162° | 5.77 |
| 14 | 39° | 4.67 | 180° | 6.34 |
| 16 | 39.2° | 4.66 | 180° | 6.8 |
| 20 | 40.5° | 4.58 | 179.8° | 7.89 |
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