AIR FORCE
USA EXPRESS 27Sail number USA/USA108
GPH
660.6
OSN
644.5
LOA
8.309 m
Displacement
1129 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6338
Medium
0.8203
High
0.9249
Triple Offshore
Low
0.8117
Medium
1.0146
High
1.1418
Boat Specifications
Dimensions
- Length overall
- 8.309 m
- Beam
- 2.46 m
- Draft
- 1.34 m
- Displacement
- 1129 kg
- Crew weight
- 381 kg
- Wetted surface
- 12.96 m²
Sails
- Mainsail
- 17.46 m²
- Genoa
- 19.37 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 57.29 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 | 5.13 | 5.4 | 5.56 | 5.49 | 5.52 | 5.37 | 4.82 | 4.09 |
| 8 | 5.93 | 6.12 | 6.25 | 6.32 | 6.42 | 6.35 | 5.95 | 5.19 |
| 10 | 6.29 | 6.46 | 6.62 | 6.79 | 6.97 | 6.97 | 6.65 | 6.02 |
| 12 | 6.43 | 6.64 | 6.92 | 7.14 | 7.38 | 7.56 | 7.24 | 6.58 |
| 14 | 6.49 | 6.72 | 7.09 | 7.39 | 7.87 | 8.12 | 7.94 | 7.03 |
| 16 | 6.53 | 6.79 | 7.23 | 7.66 | 8.39 | 8.62 | 8.82 | 7.6 |
| 20 | 6.54 | 6.85 | 7.42 | 8.06 | 9.34 | 10.4 | 11.62 | 10.15 |
| 24 | 6.44 | 6.78 | 7.48 | 8.33 | 10.26 | 12.02 | 13.45 | 13.44 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 44° | 3.34 | 144.2° | 3.55 |
| 8 | 41.5° | 4.04 | 147.8° | 4.49 |
| 10 | 39.1° | 4.42 | 148.9° | 5.21 |
| 12 | 38.9° | 4.53 | 149.2° | 5.7 |
| 14 | 39.1° | 4.57 | 146.8° | 6.09 |
| 16 | 39.3° | 4.58 | 143.9° | 6.58 |
| 20 | 40.5° | 4.52 | 141.3° | 8.79 |
| 24 | 43.5° | 4.29 | 145.8° | 11.64 |
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