MONGO
USA Northeast 39Sail number USA/USA40250
GPH
618.7
OSN
601.8
LOA
11.918 m
Displacement
6757 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6683
Medium
0.8941
High
1.0219
Triple Offshore
Low
0.8552
Medium
1.0907
High
1.2102
Boat Specifications
Dimensions
- Length overall
- 11.918 m
- Beam
- 3.88 m
- Draft
- 2.4 m
- Displacement
- 6757 kg
- Crew weight
- 646 kg
- Wetted surface
- 29.27 m²
Sails
- Mainsail
- 37.31 m²
- Genoa
- 57.84 m²
- Spinnaker
- 112.12 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- Northeast 39
- Builder
- C&C Custom
- Designer
- Rob Ball
- Year built
- 1984
Velocity Prediction
Each row is TWS followed by TWA and boat-speed pairs. Paste it directly into WX Navigator or compatible navigation software.
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.45 | 5.72 | 5.94 | 5.86 | 5.54 | 5.4 | 4.93 | 4.22 |
| 8 | 6.45 | 6.68 | 6.83 | 6.8 | 6.71 | 6.57 | 6.04 | 5.25 |
| 10 | 6.96 | 7.11 | 7.23 | 7.24 | 7.3 | 7.23 | 6.91 | 6.2 |
| 12 | 7.17 | 7.33 | 7.49 | 7.53 | 7.67 | 7.64 | 7.38 | 6.94 |
| 14 | 7.26 | 7.45 | 7.69 | 7.79 | 8.01 | 8.03 | 7.77 | 7.37 |
| 16 | 7.32 | 7.52 | 7.84 | 8.02 | 8.22 | 8.39 | 8.18 | 7.73 |
| 20 | 7.34 | 7.58 | 7.99 | 8.37 | 8.55 | 8.86 | 8.94 | 8.48 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.2° | 3.65 | 146° | 3.65 |
| 8 | 40.5° | 4.35 | 150.5° | 4.55 |
| 10 | 39.8° | 4.87 | 150.5° | 5.37 |
| 12 | 38.4° | 5.11 | 157° | 6.1 |
| 14 | 37.9° | 5.23 | 174° | 6.72 |
| 16 | 37.5° | 5.29 | 180° | 7.2 |
| 20 | 37.5° | 5.29 | 180° | 7.91 |
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