OSIRATRILLI
ITA First 33.7 (DK)Sail number ITA/ITA13982
GPH
646.4
OSN
627.7
LOA
9.798 m
Displacement
4496 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6379
Medium
0.8552
High
0.9738
Triple Offshore
Low
0.8184
Medium
1.0452
High
1.1582
Boat Specifications
Dimensions
- Length overall
- 9.798 m
- Beam
- 3.33 m
- Draft
- 2.09 m
- Displacement
- 4496 kg
- Crew weight
- 500 kg
- Wetted surface
- 23.54 m²
Sails
- Mainsail
- 33.06 m²
- Genoa
- 36.33 m²
- Spinnaker
- 67.1 m²
- Asymmetric spinnaker
- 64.48 m²
Design
- Type
- First 33.7 (DK)
- Builder
- Beneteau
- Designer
- Berret
- Year built
- 1996
- Stability index
- 111.1
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 | 5.29 | 5.55 | 5.72 | 5.62 | 5.37 | 5.19 | 4.66 | 3.95 |
| 8 | 6.18 | 6.39 | 6.52 | 6.49 | 6.45 | 6.28 | 5.78 | 5.04 |
| 10 | 6.65 | 6.81 | 6.94 | 6.96 | 7.04 | 6.95 | 6.61 | 5.93 |
| 12 | 6.85 | 7.02 | 7.19 | 7.26 | 7.43 | 7.37 | 7.1 | 6.63 |
| 14 | 6.94 | 7.12 | 7.36 | 7.5 | 7.78 | 7.76 | 7.5 | 7.09 |
| 16 | 6.99 | 7.18 | 7.47 | 7.71 | 8.08 | 8.14 | 7.89 | 7.45 |
| 20 | 7.03 | 7.23 | 7.59 | 7.98 | 8.48 | 8.88 | 8.74 | 8.19 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.4° | 3.49 | 144.8° | 3.42 |
| 8 | 40.6° | 4.21 | 147.8° | 4.36 |
| 10 | 39° | 4.67 | 153.2° | 5.15 |
| 12 | 38.1° | 4.86 | 159.2° | 5.85 |
| 14 | 37.6° | 4.96 | 171.8° | 6.46 |
| 16 | 37.5° | 5 | 177.2° | 6.93 |
| 20 | 37.8° | 5 | 179° | 7.64 |
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