KIWI
ITA Farr 31 mod.Sail number ITA/ITA8521
GPH
665.5
OSN
646
LOA
9.53 m
Displacement
2400 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6179
Medium
0.8321
High
0.9469
Triple Offshore
Low
0.7947
Medium
1.0149
High
1.1307
Boat Specifications
Dimensions
- Length overall
- 9.53 m
- Beam
- 3.18 m
- Draft
- 1.8 m
- Displacement
- 2400 kg
- Crew weight
- 400 kg
- Wetted surface
- 16.87 m²
Sails
- Mainsail
- 29.15 m²
- Genoa
- 20.78 m²
- Spinnaker
- 44.06 m²
- Asymmetric spinnaker
- 36.55 m²
Design
- Type
- Farr 31 mod.
- Builder
- Artmare
- Designer
- Farr
- Year built
- 1979
- Stability index
- 109.2
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 | 5.17 | 5.41 | 5.55 | 5.49 | 5.28 | 5.05 | 4.49 | 3.76 |
| 8 | 6.04 | 6.21 | 6.31 | 6.38 | 6.25 | 6.09 | 5.56 | 4.82 |
| 10 | 6.44 | 6.59 | 6.71 | 6.84 | 6.81 | 6.69 | 6.33 | 5.74 |
| 12 | 6.6 | 6.78 | 6.97 | 7.16 | 7.22 | 7.13 | 6.81 | 6.41 |
| 14 | 6.69 | 6.88 | 7.15 | 7.4 | 7.61 | 7.55 | 7.23 | 6.85 |
| 16 | 6.75 | 6.95 | 7.27 | 7.56 | 8.01 | 7.98 | 7.65 | 7.23 |
| 20 | 6.8 | 7.03 | 7.42 | 7.85 | 8.77 | 9.09 | 8.74 | 8.08 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.43 | 145.1° | 3.25 |
| 8 | 40.2° | 4.15 | 150.2° | 4.18 |
| 10 | 38.4° | 4.56 | 153.7° | 4.99 |
| 12 | 37.6° | 4.72 | 161.9° | 5.7 |
| 14 | 37.5° | 4.8 | 176.3° | 6.31 |
| 16 | 37.2° | 4.85 | 179° | 6.74 |
| 20 | 37.8° | 4.85 | 179° | 7.48 |
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