WHY KNOT
LTU HELMSMAN 751Sail number LTU/LTU417
GPH
688.2
OSN
668.4
LOA
7.5 m
Displacement
1127 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6097
Medium
0.7956
High
0.9133
Triple Offshore
Low
0.7757
Medium
0.9735
High
1.111
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
- 12.03 m²
Sails
- Mainsail
- 20.88 m²
- Genoa
- 11.51 m²
- Spinnaker
- 0 m²
- Asymmetric spinnaker
- 52.5 m²
Design
- Type
- HELMSMAN 751
- Builder
- TOPSEL
- Designer
- NEW CRUISE DESIGN
- Year built
- 1993
- Stability index
- 85.3
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 4.66 | 4.91 | 5.08 | 5.36 | 5.4 | 5.26 | 4.78 | 4.11 |
| 8 | 5.5 | 5.66 | 5.81 | 6.08 | 6.14 | 6.05 | 5.74 | 5.11 |
| 10 | 5.92 | 6.04 | 6.15 | 6.44 | 6.72 | 6.61 | 6.28 | 5.8 |
| 12 | 6.17 | 6.33 | 6.5 | 6.67 | 7.25 | 7.26 | 6.84 | 6.21 |
| 14 | 6.28 | 6.51 | 6.86 | 6.93 | 7.6 | 7.95 | 7.48 | 6.58 |
| 16 | 6.33 | 6.6 | 7.07 | 7.38 | 7.93 | 8.47 | 8.29 | 7.01 |
| 20 | 6.42 | 6.7 | 7.23 | 7.93 | 8.6 | 9.51 | 11.22 | 9.48 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 41.8° | 3.12 | 146° | 3.56 |
| 8 | 40.6° | 3.76 | 148.2° | 4.43 |
| 10 | 38.4° | 4.22 | 150.5° | 5.03 |
| 12 | 36.4° | 4.51 | 150.7° | 5.38 |
| 14 | 35.8° | 4.6 | 175.7° | 5.87 |
| 16 | 35.8° | 4.62 | 175.7° | 6.22 |
| 20 | 36.4° | 4.63 | 137.9° | 8.21 |
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