Reliable Robotics Advances Safety-Critical UAS Datalinks

Reliable Robotics is advancing the certifiability of its safety-critical Uncrewed Aircraft System (UAS) datalinks to allow automated aircraft to integrate into existing airport and air traffic control infrastructure.

Known as the C2 Link System, the technology enables remotely piloted aircraft to operate within the National Airspace System (NAS) under Instrument Flight Rules. The system is currently being utilized on an automated Cessna C208B, where a remote pilot maintains responsibility for safety and acts on clearances from Air Traffic Control. The comprehensive link system manages connectivity between the aircraft and the pilot, provides shared traffic awareness between uncrewed systems, and facilitates separation automation.

The hardware is designed to be compatible with multiple network communication systems and adheres to FAA standards for Control and Non-Payload Communications (CNPC) links. By utilizing existing satellite-based connectivity and ground-based infrastructure, the system avoids the need for new physical installations at airports.

Brandon Suarez, VP, Uncrewed Aircraft Systems Integration at Reliable Robotics, said, “Uncrewed aircraft don’t need new infrastructure at airports to fly – the proliferation of satellite-based connectivity through the market creates an environment where UAS can communicate and safely integrate into the NAS. With our C2 System, Reliable will be able to bring more aviation – and safer aviation – into communities without requiring additional infrastructure.”

The C2 System is built to integrate into the NAS as it exists today while remaining capable of adapting to a modernized system utilizing Digital Flight Rules (DFR). Under DFR, aircraft operators can use advanced automation to improve safety and gain operational benefits. To achieve this, Reliable Robotics has partnered with leading vendors for satellite communications and datalink hardware.

The system utilizes satellite terminals compatible with the Iridium and Viasat networks. These terminals establish multiple CNPC datalinks to ensure low-latency connectivity and high integrity, leveraging the experience of both Low Earth Orbit and Geostationary orbit providers. Additionally, in partnership with uAvionix, the company integrates air-to-ground datalinks designed for high-density operational volumes, such as airport terminals, where voice communications are critical.

Reliable Robotics is currently contributing operational insights to RTCA working groups to help develop consensus standards for link systems. The company is also collaborating with the FAA to demonstrate how its system integrates with existing voice communications. Recent efforts include flight simulation and testing of the automated Cessna 208B Caravan, including a contract with NASA focused on airport environments. Future validation is expected through the Electric Vertical Takeoff and Landing and Advanced Air Mobility Integration Pilot Program, with flight testing in rural and regional communities planned within the next two years.

Suarez added, “With our C2 System, Reliable will be able to bring more aviation – and safer aviation – into communities without requiring additional infrastructure.”