Optimizing Every Flight with Navigation Resilience

Global navigation satellite systems (GNSS) guide nearly every modern flight. Yet they are increasingly vulnerable. Jamming, spoofing and interference incidents now occur more than 1,500 times a day worldwide.

For commercial aviation, where safety, precision and predictability are essential, maintaining reliable navigation has never been more critical.

That’s where navigation resilience comes in.

Going Beyond GNSS 

Navigation resilience isn’t about replacing GNSS. It’s about ensuring accurate navigation when GNSS is degraded or unavailable. 

That reality is shaping a new approach to navigation architecture centered on inertial navigation systems (INS). Unlike satellite-based systems, inertial systems are self-contained and immune to external interference. They provide continuous positioning, navigation and timing data — even in fully denied environments.

“We start with inertial navigation as the foundation, use GNSS when it’s available and then layer in additional aiding sources to create resilience even when one input is degraded or unavailable,” explained Julie Heck, General Manager for Navigation and Sensors at Honeywell Aerospace.

Resilient Flight Management 

Honeywell Aerospace’s flight management solutions, including the proven Primus Epic  platform, go beyond traditional flight planning to enable:

• Navigation resilience across all phases of flight
• Optimized routing for time and fuel efficiency
• Precise vertical and lateral guidance
• Integrated situational awareness with traffic, terrain and airspace in a single view
• Future-ready architecture that supports evolving air traffic management requirements

The result is a system that not only guides the aircraft but actively improves its performance, efficiency and predictability.

Better Efficiency, Better Safety 

For commercial operators, efficiency comes down to two critical resources: time and fuel. Honeywell Aerospace FMS solutions improve with streamlined flight planning, optimized profiles and predictive performance insights.

Our FMS-guided visual approaches elevate safety by delivering stabilized, repeatable paths to the runway — even in complex or low-visibility conditions. These approaches help:

✓ Maintain proper descent profiles
✓ Reduce the risk of unstable approaches
✓ Improve visibility and orientation in challenging conditions

By delivering consistent, predictable guidance, FMS helps pilots operate with greater confidence in demanding or disrupted environments.

Supporting Connectivity

As global airspace becomes more complex and connected, FMS plays a critical role in maintaining seamless communication and compliance.

Honeywell Aerospace systems support advanced datalink capabilities, including ADS-C, CPDLC and AOC messaging, improving coordination between aircraft and air traffic control. These capabilities are essential for modern air traffic management and evolving regulatory requirements — particularly for long-range and international operations.

They also strengthen navigation resilience by ensuring continuous access to critical information and enabling more adaptive, informed flight operations.

Innovating for What’s Next 

From supporting next generaion advanced air mobility (AAM) platforms to optimizing global business aviation operations, Honeywell Aerospace is redefining what flight management means for a more resilient future. 

With FMS solutions that are trusted on over 90% of commercial aircraft and have been proven across millions of flight hours, we’re helping deliver a new standard of navigation resilience for the future of flight.