Scientific Anglers Sonar Trout Express
Description
Description
Scientific Anglers Sonar Trout Express is a sink-tip fly line built for fishing streamers in medium to large rivers. This is our preferred choice for largemouth yellowfish on the Vaal and Orange Rivers. A short rear-weighted head loads quickly, while the blended floating running line, intermediate belly and fast sinking tip carry flies down and maintain depth through the drift.
Technologies
- AST – Slickness additive that reduces friction improves shootability and keeps lines performing longer.
- Welded Loops – Durable welded loops on both the front and back of the line for easy reliable loop-to-loop connections to backing and leaders.
- SA-ID – Printed line identification system showing taper weight and density for quick recognition.
- Sonar – Density-tuned sinking technology providing smooth sink profiles and stable depth control during retrieves.
- Braided Multifilament Core – Supple cold-water core that improves flotation reduces memory and provides smooth stable casting.
Temperature Rating
- Moderate – 10°C to 25°C
Target Species
- Trout
- Smallmouth Yellowfish
- Largmouth Yellowfish
Types of Flies
- Streamers
Additional Features
- Short rear-weighted head excels at roll casting large streamers in tight spaces
- Extended rear taper stabilises longer casts and controlled swings
- Floating running line intermediate belly and Sink 5 tip provide stepped depth control
- Seamless density blend offers smooth transitions between floating intermediate and sinking sections
- Well suited to drifting and stripping streamers for largemouth yellowfish on big rivers
Line Chart
| Line Weight | Head Length | Total Length | Head Weight | Grain Weight* |
|---|---|---|---|---|
| 165 gr (4–5 wt) | 8.8 m | 30.5 m | 165 gr | 165 gr / 10.7 g |
| 185 gr (5–6 wt) | 8.8 m | 30.5 m | 185 gr | 185 gr / 12.0 g |
| 210 gr (6–7 wt) | 8.8 m | 30.5 m | 210 gr | 210 gr / 13.6 g |
| 240 gr (7–8 wt) | 9.1 m | 30.5 m | 240 gr | 240 gr / 15.6 g |
| 275 gr (8–9 wt) | 9.4 m | 30.5 m | 275 gr | 275 gr / 17.8 g |
*Grain weight measured at first 9.1 m.
Sonar Trout Express Line Features
Scientific Anglers Sonar Trout Express features a short, rear-weighted head and Sink 5 tip to get streamers down quickly with precision. Perfect for stillwater trout or chasing powerful largemouth yellowfish, it delivers control, accuracy, and easy casting in tight quarters.
