AIR FORCE
USA EXPRESS 27Sail number USA/USA108
GPH
672.3
OSN
654
LOA
8.309 m
Displacement
1136 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6118
Medium
0.8122
High
0.9133
Triple Offshore
Low
0.7894
Medium
1.0015
High
1.125
Boat Specifications
Dimensions
- Length overall
- 8.309 m
- Beam
- 2.46 m
- Draft
- 1.34 m
- Displacement
- 1136 kg
- Crew weight
- 382 kg
- Wetted surface
- 12.85 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
- Stability index
- 105.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.14 | 5.42 | 5.57 | 5.52 | 5.3 | 5.04 | 4.52 | 3.78 |
| 8 | 5.94 | 6.13 | 6.25 | 6.33 | 6.2 | 6.07 | 5.59 | 4.85 |
| 10 | 6.3 | 6.47 | 6.64 | 6.82 | 6.78 | 6.67 | 6.32 | 5.72 |
| 12 | 6.44 | 6.65 | 6.95 | 7.21 | 7.32 | 7.25 | 6.84 | 6.38 |
| 14 | 6.51 | 6.75 | 7.13 | 7.45 | 7.86 | 7.85 | 7.38 | 6.86 |
| 16 | 6.55 | 6.81 | 7.26 | 7.71 | 8.42 | 8.55 | 8.03 | 7.36 |
| 20 | 6.56 | 6.86 | 7.41 | 8.06 | 9.5 | 10.28 | 10.08 | 8.65 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 43.8° | 3.35 | 144.2° | 3.28 |
| 8 | 41.4° | 4.04 | 147.1° | 4.2 |
| 10 | 39.4° | 4.42 | 152.3° | 4.96 |
| 12 | 38.8° | 4.54 | 159.5° | 5.65 |
| 14 | 39° | 4.58 | 173.6° | 6.2 |
| 16 | 39.1° | 4.6 | 176.3° | 6.66 |
| 20 | 40.5° | 4.52 | 173° | 7.61 |
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