FIREFLY
USA J-35Sail number USA/USA40935
GPH
611.8
OSN
594.1
LOA
10.82 m
Displacement
4247 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6737
Medium
0.9073
High
1.0372
Triple Offshore
Low
0.8659
Medium
1.1023
High
1.2299
Boat Specifications
Dimensions
- Length overall
- 10.82 m
- Beam
- 3.65 m
- Draft
- 2.1 m
- Displacement
- 4247 kg
- Crew weight
- 726 kg
- Wetted surface
- 24.54 m²
Sails
- Mainsail
- 32.83 m²
- Genoa
- 50.43 m²
- Spinnaker
- 95.02 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-35
- Builder
- J BOAT
- Designer
- JOHNSTONE
- Year built
- 1983
- Stability index
- 110.4
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.58 | 5.89 | 6.13 | 6.03 | 5.63 | 5.48 | 4.98 | 4.21 |
| 8 | 6.55 | 6.76 | 6.89 | 6.87 | 6.77 | 6.64 | 6.15 | 5.31 |
| 10 | 6.99 | 7.13 | 7.25 | 7.27 | 7.31 | 7.24 | 6.94 | 6.29 |
| 12 | 7.18 | 7.35 | 7.54 | 7.59 | 7.75 | 7.7 | 7.4 | 6.98 |
| 14 | 7.27 | 7.47 | 7.77 | 7.91 | 8.15 | 8.18 | 7.86 | 7.4 |
| 16 | 7.33 | 7.55 | 7.92 | 8.2 | 8.42 | 8.63 | 8.35 | 7.83 |
| 20 | 7.38 | 7.64 | 8.09 | 8.56 | 8.86 | 9.34 | 9.49 | 8.75 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42.6° | 3.68 | 145.1° | 3.64 |
| 8 | 41.4° | 4.43 | 149.3° | 4.6 |
| 10 | 39° | 4.97 | 151.1° | 5.45 |
| 12 | 37.5° | 5.2 | 158.3° | 6.17 |
| 14 | 36.4° | 5.32 | 171.2° | 6.74 |
| 16 | 36.1° | 5.39 | 177.2° | 7.19 |
| 20 | 35.6° | 5.46 | 177.2° | 7.98 |
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