Advanced Navigation, a developer of high-accuracy inertial navigation systems (INS) for commercial and defense applications, has expanded its Boreas PNT range with the Boreas 50 Series, its most compact fiber-optic gyroscope (FOG) INS to date.
The Boreas 50 series includes a D50, a strategic-grade INS, and the A50, an attitude and heading reference system (AHRS).
The Boreas 50 Series delivers military-grade precision and reliability, with key specifications including:
- Heading accuracy: Gyrocompassing 0.5 degrees secLat
- Roll and pitch accuracy: 0.03 degrees
- Positional accuracy: 0.01 m CEP50
- ECCM capabilities are available on the Boreas D50
Visit Advanced Navigation’s Defense Team at DSEI London at Stand S2-116.
Advanced Navigation’s sensor fusion powers the 50 series. Both the A50 and D50 have precise North-seeking gyrocompassing to detect Earth’s rotation and rapidly determine true North in minutes, independent of GNSS signals and magnetic interference.
The proprietary sensor fusion utilizes sophisticated algorithms to interpret and filter sensor data. The software weighs each sensor’s input and adjusts in real-time, based on reliability scores, environmental conditions, and operational context, enabling continuous, accurate state estimation when GNSS signals are lost, degraded, or distorted.
The 50 series has a compact, SWaP-optimised form factor, delivering intelligent, reliable navigation in demanding conditions. Its small size, weighing 910 grams, enables easy integration into space- and weight-constrained platforms.
The D50 specifically incorporates dual-antenna, multi-band GNSS receivers, supporting up to four frequency bands. This increases satellite visibility for faster signal acquisition, enhances heading accuracy, and enables more stable, resilient positioning in obstructed or interference-prone environments.
It also has an optional Electronic Counter-Countermeasure (ECCM) functionality, offering additional protection for missions in high-threat scenarios. While adversaries create GNSS signal attacks, the D50 detects and neutralizes these attacks, maintaining a reliable, uninterrupted positioning.
Maximilian Doemling, Head of Product at Advanced Navigation, stated, “The modern battlefield is no longer defined by only physical boundaries, but by electromagnetic dominance. In this new reality, assuming navigation will ‘just work’ is a mission-critical oversight.
“The Boreas 50 Series goes beyond a traditional INS. In heavily contested zones, the D50’s advanced ECCM capabilities deliver uncompromising protection against nefarious attempts of GNSS jamming and spoofing. It is a powerful counter-EW solution built to operate under direct electronic attack, giving operators the resilience and reliability they need to stay on course against any adversary.”
For users of the compact Spatial FOG Dual, the new 50 Series is a seamless, drop-in upgrade. It maintains the same compact size while providing enhanced features and reducing integration risk.

Integration into Defense Platforms & Contested Environments
The 50 series supports C-UAS operations, with the North-seeking gyrocompasses providing precise headings and rapid stabilization. This means C-UAS platforms can acquire, aim, and track with speed and accuracy in dynamic environments.
The new range also supports ISR and UAS systems. EW and sensor drift cause navigation failures and targeting errors, an issue worsened by size and weight restrictions. The D50 with ECCM features provide continuous, robust PNT, overcoming sensor drift when combined with an external GNSS receiver or velocity aiding sensor. The company design also enables seamless integration into new and legacy UAS platforms.
For autonomous and tactical vehicles, where electronic interference can compromise vehicle navigation and situational awareness, the D50 with ECCM features provide anti-jamming and anti-spoofing performance. This enables consistent, accurate heading and positioning data for uninterrupted autonomous or crewed operations.
The 50 series is also rigorously tested to military standards for shock and vibration, crucial for military pointing platforms where motion, shock, and environmental interference can cause inaccuracies.
It uses gyrocompassing to rapidly calculate heading and orientation, delivering effective stabilization required for radar platforms to maintain accurate target identification and tracking on the move.
For Maritime vehicles, where the denial of GPS signals blinds precision capabilities and impacts threat navigation, identification and tracking abilities, the 50 series can endure GPS denial, navigate precisely, and deliver assets on target, maintaining tactical advantage on the seas.
Defense Veterans Driving Innovation
Advanced Navigation’s defense team consists entirely of military veterans, a global force the company intends to more than double within the year. Veterans closely collaborate with system integrators, program offices, and military end-users, producing tailored APNT solutions that meet rigorous performance, compliance, and security standards.
Veteran’s military experience allows for seamless communication between technical teams and military operators, accelerating timelines and reducing misalignment risks. Their partnership also ensures technologies are shaped by those who understand and have experienced the battlespace.
Advanced Navigation’s products are developed and delivered on a strict timeline, guaranteeing short lead times in the industry. This process is supported by the company’s vertically integrated manufacturing and a three-year warranty.
The Boreas A50 and D50 are available from early October 2025, with the ECCM-equipped Boreas D50 scheduled for release from mid November 2025.
To find out more information, visit Advanced Navigation’s Defense Team at DSEI London, from 9-12 September, at Stand S2-116.







