Scientific Anglers Sonar Titan Pelagic Fly Line – 700gr 13-15wt – 144674
The Scientific Anglers Sonar Titan Pelagic Fly Line – 700gr (13-15wt) is a high-performance sinking fly line designed for targeting large, fast-swimming pelagic species in deep water. Here’s a detailed breakdown of its features:
Key Features:
1. Ultra-Fast Sinking
– Sink Rate: ~7.5 inches per second (IPS)
– Designed to quickly reach deep-holding fish (e.g., tuna, marlin, sailfish, and other offshore predators).
2. Heavy Head Weight (700gr)
– Optimized for 13-15wt rods, providing the power needed to cast large flies and handle strong currents/wind.
3. Sonar Technology
– Features Scientific Anglers’ Sonar Core for enhanced durability and consistent performance.
– Titan Sink Coating: A dense, abrasion-resistant coating for maximum sink rate and longevity.
4. Specialized Taper
– Aggressive front taper to turn over bulky flies (e.g., poppers, deceivers, or tube flies).
– Long rear taper for smooth casting and reduced fatigue during long casting sessions.

5. Durable Construction
– Resistant to saltwater, UV rays, and abrasion—ideal for harsh offshore conditions.
Best Use Cases:
– Target Species: Tuna, marlin, sailfish, wahoo, dorado, and other pelagics.
– Fishing Techniques: Deep-water stripping, jigging, or trolling with large streamers.
– Environments: Offshore, bluewater, or deep reefs where fast-sinking lines are critical.
Pros & Cons:
✔ Pros:
– Extremely fast sink rate gets flies deep quickly.
– Robust construction withstands big fish and rough conditions.
– Smooth casting for its weight class.
✖ Cons:
– Requires a powerful rod (13-15wt) to load properly.
– Not ideal for shallow water due to rapid sink rate.
Alternatives:
– RIO Leviathan (700gr): Similar sink rate, slightly different taper.
– Airflo Depthfinder (700gr): Alternative for those preferring Airflo’s coating.
Final Verdict:
This line is a top choice for serious saltwater anglers chasing pelagics in deep water. Its 700gr weight and ultra-fast sink rate make it a beast for battling trophy fish. Pair it with a stiff, fast-action 13-15wt rod for best results.
Would you like recommendations for rods or leaders to match this line?