WHY KNOT
LTU HELMSMAN 751Sail number LTU/LTU417
GPH
683.9
OSN
664
LOA
7.5 m
Displacement
1127 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6182
Medium
0.8023
High
0.9188
Triple Offshore
Low
0.7826
Medium
0.979
High
1.1126
Boat Specifications
Dimensions
- Length overall
- 7.5 m
- Beam
- 2.42 m
- Draft
- 1.68 m
- Displacement
- 1127 kg
- Crew weight
- 383 kg
- Wetted surface
- 12.09 m²
Sails
- Mainsail
- 20.88 m²
- Genoa
- 11.82 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 52.5 m²
Design
- Type
- HELMSMAN 751
- Builder
- TOPSEL
- Designer
- NEW CRUISE DESIGN
- Year built
- 1993
- Stability index
- 83.6
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.78 | 4.99 | 5.1 | 5.32 | 5.37 | 5.24 | 4.78 | 4.1 |
| 8 | 5.55 | 5.71 | 5.79 | 6.07 | 6.16 | 6.06 | 5.73 | 5.11 |
| 10 | 5.98 | 6.1 | 6.2 | 6.44 | 6.72 | 6.64 | 6.32 | 5.81 |
| 12 | 6.23 | 6.39 | 6.55 | 6.66 | 7.18 | 7.22 | 6.86 | 6.25 |
| 14 | 6.34 | 6.55 | 6.85 | 6.93 | 7.51 | 7.82 | 7.46 | 6.63 |
| 16 | 6.41 | 6.65 | 7.04 | 7.29 | 7.83 | 8.38 | 8.22 | 7.02 |
| 20 | 6.47 | 6.75 | 7.24 | 7.8 | 8.47 | 9.46 | 11.29 | 9.58 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.4° | 3.21 | 145.7° | 3.55 |
| 8 | 39.4° | 3.85 | 148.7° | 4.42 |
| 10 | 37.5° | 4.3 | 149.8° | 5.03 |
| 12 | 36° | 4.55 | 149.6° | 5.42 |
| 14 | 35.7° | 4.62 | 174.8° | 5.89 |
| 16 | 35.7° | 4.66 | 175.7° | 6.27 |
| 20 | 36.4° | 4.64 | 138.7° | 8.3 |
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