Vigilant Aerospace Completes FlightHorizon PILOT DAA Flight Tests

Vigilant Aerospace Systems has completed a series of flight tests and demonstrations for its FlightHorizon PILOT system, an onboard detect-and-avoid (DAA) technology designed for uncrewed aircraft systems (UAS). The June 19, 2026, announcement details a technical milestone for the integration of autonomous drones into national airspace.

The tests, conducted at Oklahoma State University’s Uncrewed Aircraft Flight Station, demonstrated the system’s ability to track aircraft and calculate avoidance maneuvers using a low-power onboard computer. In a press release issued by the company, Vigilant Aerospace positioned the technology as a critical enabler for Beyond Visual Line of Sight (BVLOS) operations ahead of the FAA’s anticipated Part 108 flight rules.

System architecture and testing parameters

The recent flight tests evaluated two distinct versions of the technology. FlightHorizon PILOT-C is designed for cooperative airspace, utilizing transponders and digital radio receivers to track nearby traffic. FlightHorizon PILOT-M targets non-cooperative airspace by integrating additional sensors, including onboard radar, to detect aircraft lacking active transponders.

The core software is based on two licensed patents from the National Aeronautics and Space Administration (NASA). During the demonstrations, the system successfully processed sensor data through a single-board computer to execute avoidance maneuvers.

“These most recent flight test milestones provide a path to enabling the industry to execute safe beyond visual line-of-sight flight for both small and large UAS, with fully onboard safety systems,” said Kraettli L. Epperson, CEO of Vigilant Aerospace Systems.

Development pathway and regulatory alignment

The FlightHorizon PILOT system originated as a military project. Vigilant Aerospace initially developed the technology for the United States Air Force (USAF) under a Small Business Innovation Research (SBIR) contract. The transition to a civilian application received financial support through an Industry Innovation Program grant from the Oklahoma Center for the Advancement of Science and Technology (OCAST).

The commercialization of onboard DAA systems aligns with shifting regulatory frameworks. The FAA is currently drafting the Part 108 rule, which will establish standardized regulations for BVLOS drone operations in the US. Equipment capable of autonomous collision avoidance is expected to be a foundational requirement for operators seeking certification under the new framework.

AirPro News analysis

The successful demonstration of a low-footprint DAA system addresses one of the most persistent technical bottlenecks in the commercial drone sector. While ground-based radar and observer networks have facilitated early BVLOS waivers, scaling commercial operations requires the aircraft to carry its own separation assurance technology. If the FAA’s upcoming Part 108 rule mandates onboard DAA for specific operational risk categories, systems like FlightHorizon PILOT will transition from experimental capabilities to mandatory compliance equipment. We expect the market for lightweight, multi-sensor DAA suites to accelerate rapidly as the rulemaking process concludes.

Sources: Vigilant Aerospace Systems