FIREFLY
USA J-35Sail number USA/40935
GPH
607.2
OSN
591.1
LOA
10.79 m
Displacement
4155 kg
Triple-Number Ratings
Lower is fasterTriple Inshore
Low
0.6832
Medium
0.91
High
1.0359
Triple Offshore
Low
0.8774
Medium
1.1078
High
1.2347
Boat Specifications
Dimensions
- Length overall
- 10.79 m
- Beam
- 3.65 m
- Draft
- 2.09 m
- Displacement
- 4155 kg
- Crew weight
- 700 kg
- Wetted surface
- 24.09 m²
Sails
- Mainsail
- 32.83 m²
- Genoa
- 50.43 m²
- Spinnaker
- 93.04 m²
- Asymmetric spinnaker
- 0 m²
Design
- Type
- J-35
- Builder
- J BOAT
- Designer
- JOHNSTONE
- Year built
- 1983
Velocity Prediction
| Wind Speed | 52° | 60° | 75° | 90° | 110° | 120° | 135° | 150° |
|---|---|---|---|---|---|---|---|---|
| 6 | 5.67 | 5.99 | 6.24 | 6.17 | 5.68 | 5.54 | 5.03 | 4.26 |
| 8 | 6.62 | 6.81 | 6.94 | 6.94 | 6.8 | 6.69 | 6.21 | 5.35 |
| 10 | 7.02 | 7.17 | 7.3 | 7.32 | 7.34 | 7.27 | 6.97 | 6.32 |
| 12 | 7.18 | 7.36 | 7.59 | 7.66 | 7.8 | 7.76 | 7.44 | 7 |
| 14 | 7.27 | 7.48 | 7.81 | 7.99 | 8.2 | 8.25 | 7.92 | 7.42 |
| 16 | 7.32 | 7.55 | 7.94 | 8.26 | 8.47 | 8.71 | 8.42 | 7.86 |
| 20 | 7.37 | 7.61 | 8.08 | 8.58 | 8.94 | 9.45 | 9.63 | 8.8 |
| Wind Speed | Beat Angle | Beat VMG | Run Angle | Run VMG |
|---|---|---|---|---|
| 6 | 42° | 3.74 | 145° | 3.69 |
| 8 | 41.2° | 4.5 | 149° | 4.64 |
| 10 | 39° | 4.99 | 151° | 5.48 |
| 12 | 37.5° | 5.2 | 158° | 6.18 |
| 14 | 36.8° | 5.3 | 180° | 6.77 |
| 16 | 36.4° | 5.36 | 180° | 7.23 |
| 20 | 36° | 5.42 | 180° | 8.05 |
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