X-tra
NED X-79Sail number NED/NED5867
GPH
698.9
OSN
678.1
LOA
7.927 m
Displacement
1806 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.5934
Medium
0.7972
High
0.9002
Triple Offshore
Low
0.7606
Medium
0.9641
High
1.0706
Boat Specifications
Dimensions
- Length overall
- 7.927 m
- Beam
- 2.86 m
- Draft
- 1.39 m
- Displacement
- 1806 kg
- Crew weight
- 352 kg
- Wetted surface
- 14.34 m²
Sails
- Mainsail
- 21.11 m²
- Genoa
- 16.94 m²
- Spinnaker
- 50.16 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- X-79
- Builder
- X-Yachts
- Designer
- N. Jeppesen
- Year built
- 1979
- Stability index
- 99.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.8 | 5.04 | 5.17 | 5.15 | 5.19 | 5.03 | 4.51 | 3.78 |
| 8 | 5.6 | 5.77 | 5.88 | 5.98 | 6.05 | 5.94 | 5.48 | 4.8 |
| 10 | 6.01 | 6.14 | 6.25 | 6.36 | 6.5 | 6.43 | 6.16 | 5.65 |
| 12 | 6.2 | 6.34 | 6.5 | 6.56 | 6.86 | 6.84 | 6.58 | 6.22 |
| 14 | 6.29 | 6.46 | 6.69 | 6.78 | 7.18 | 7.23 | 6.98 | 6.6 |
| 16 | 6.34 | 6.53 | 6.83 | 7.01 | 7.45 | 7.67 | 7.41 | 6.98 |
| 20 | 6.39 | 6.6 | 6.98 | 7.38 | 7.91 | 8.62 | 8.83 | 7.85 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.9° | 3.17 | 146° | 3.27 |
| 8 | 40.8° | 3.82 | 150.5° | 4.16 |
| 10 | 38.8° | 4.27 | 153.7° | 4.91 |
| 12 | 37.6° | 4.47 | 164.6° | 5.59 |
| 14 | 37.5° | 4.54 | 177.2° | 6.1 |
| 16 | 37.5° | 4.58 | 179° | 6.47 |
| 20 | 38.2° | 4.57 | 178.4° | 7.17 |
Loading polar chart…