FL25
Forward-looking sonar for autonomous systems
Designed for advanced navigation on autonomous underwater vehicles
Initially tailored for the HUGIN Edge AUV but fully platform agnostic, it integrates seamlessly across a wide range of autonomous systems, including AUV's and USV's. Validated through extensive testing in both shallow coastal zone and deepwater environments, the FL25 consistently delivers high-performance detection and imaging capabilities in diverse operational scenarios.
A unique "four sonars in one" configuration
Three forward-looking transducers enable comprehensive terrain evaluation, allowing mission planning systems to identify the optimal path forward when faced with complex bottom topography or obstacles, while a fourth transducer has a 140° wide sector capability, providing navigation assistance, gap-filling survey data collection, and enhanced situational awareness.
Advanced bottom detection
Improved bottom detection capabilities provide AUV's with extended reaction time for smooth altitude trajectory planning, significantly enhancing mission safety and efficiency in challenging underwater environments. The multi-transducer configuration enables the AUV to select optimal routes when encountering steep terrain or obstacles, providing multiple viewing angles for comprehensive environmental assessment. The FL25 provides reliable forward bathymetry detections extending beyond 200 meters and superior performance across diverse bottom types including sand, mud, and rock formations.
Yaw-tolerant forward bathymetry
A critical innovation addresses the common challenge of AUV "crabbing" in cross-currents. When an AUV's course over ground differs significantly from its heading due to lateral currents, the FL25 maintains accurate forward-looking capability in the actual direction of travel, ensuring reliable obstacle detection regardless of heading variations.
Expanded field of view
The FL25 features a wider field of view compared to previous systems, providing enhanced information about both bottom topology and near-surface contacts. This capability is particularly valuable for under-ice operations, where surface detection helps determine safe surfacing locations and avoid collisions with ice formations.
Applications:
- Navigation assistance in complex terrain
- Collision avoidance for bottom and surface obstacles
- Under-ice operations with surface hazard detection
- Mission planning optimization through multi-directional terrain assessment
- Hazard detection in uncharted shallow waters
- Navigation assistance in coastal environments
- Real-time obstacle avoidance
- Gap-filling survey data collection
Key features
- 4-axis forward-looking sonar
- Nadir bathymetry
- Yaw tolerance
- Forward imaging
- Flexible operating modes
- Up to 6000 m pressure depth
- AUV interface software
Get in touch!
In addition to our many offices around the world, our global dealership network enables distribution to more than 100 countries to meet customer needs at any location. Find your local dealership or Kongsberg Discovery office here.
We offer comprehensive after-sales assistance
-
24/7 Technical support
Our Technical Support team is readily available to provide global 24/7 support and can respond to resolve any issues at any time, wherever you are located in the world.
-
Training
We can provide detailed training on the use of our products to ensure your crew is equipped with the necessary operational competence to minimise technical risk and maximise return on your asset investment.