WHY KNOT
LTU HELMSMAN 751Sail number LTU/LTU417
GPH
680.1
OSN
661.2
LOA
7.5 m
Displacement
1153 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6212
Medium
0.804
High
0.9239
Triple Offshore
Low
0.79
Medium
0.9819
High
1.1191
Boat Specifications
Dimensions
- Length overall
- 7.5 m
- Beam
- 2.42 m
- Draft
- 1.69 m
- Displacement
- 1153 kg
- Crew weight
- 383 kg
- Wetted surface
- 12.04 m²
Sails
- Mainsail
- 20.86 m²
- Genoa
- 11.51 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 62.66 m²
Design
- Type
- HELMSMAN 751
- Builder
- TOPSEL
- Designer
- NEW CRUISE DESIGN
- Year built
- 1993
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.77 | 4.99 | 5.18 | 5.46 | 5.55 | 5.42 | 4.9 | 4.2 |
| 8 | 5.56 | 5.72 | 5.85 | 6.13 | 6.24 | 6.16 | 5.83 | 5.2 |
| 10 | 5.95 | 6.07 | 6.18 | 6.39 | 6.82 | 6.76 | 6.4 | 5.86 |
| 12 | 6.19 | 6.35 | 6.54 | 6.62 | 7.22 | 7.43 | 6.99 | 6.31 |
| 14 | 6.28 | 6.51 | 6.88 | 6.98 | 7.51 | 7.98 | 7.7 | 6.71 |
| 16 | 6.32 | 6.59 | 7.07 | 7.42 | 7.85 | 8.41 | 8.6 | 7.35 |
| 20 | 6.4 | 6.69 | 7.2 | 7.91 | 8.61 | 9.38 | 11.22 | 10.16 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.2° | 3.19 | 146° | 3.63 |
| 8 | 40.1° | 3.82 | 149° | 4.5 |
| 10 | 38.1° | 4.27 | 150.2° | 5.07 |
| 12 | 36.2° | 4.53 | 174° | 5.5 |
| 14 | 35.6° | 4.59 | 177° | 5.98 |
| 16 | 36° | 4.61 | 143.2° | 6.36 |
| 20 | 36.8° | 4.6 | 140.4° | 8.8 |
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