Merlin Advances Autonomous Flight System Toward Certification

New Zealand regulators completed a software-verification review of flight-control and automated communication functions.

Merlin Advances Autonomous Flight System Toward Certification
[Credit: Merlin Labs]
Gemini Sparkle

Key Takeaways:

  • Merlin has completed the third Stage of Involvement (SOI 3) review for its autonomous flight system's Flight Control Computer and Automated Communication System.
  • The Civil Aviation Authority of New Zealand (CAA New Zealand) conducted the review, focusing on software testing and verification, in coordination with the FAA for potential U.S. validation.
  • Merlin also advanced discussions with CAA New Zealand on the certification evidence required for the AI/machine-learning technology used in its automated communication system.
  • This milestone represents progress towards a system designed for full autonomous flight from takeoff to touchdown, though it does not constitute final certification.
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Merlin announced Thursday that it has completed the third Stage of Involvement review for two components of its Merlin Pilot autonomous flight system.

The Civil Aviation Authority of New Zealand reviewed the platform’s Flight Control Computer, which directs the aircraft’s flight path, and the Automated Communication System, which interprets spoken air traffic control instructions and generates responses. The communications system can convert instructions involving heading, altitude and airspeed into commands for the flight-control system.

Software Verification

The third stage, or SOI 3, review examined whether the software had been tested and verified against requirements established earlier in the certification process. Merlin completed SOI 1 in 2023, when regulators accepted its software-planning documents, and announced completion of SOI 2 for the flight-control computer in October 2025.

Certification work is currently being conducted through CAA New Zealand, but also in coordination with the FAA under a bilateral aviation safety agreement. The arrangement allows the New Zealand authority to lead the certification program while the FAA participates in the review for possible U.S. validation.

AI Communications

Merlin also closed an issue paper that addresses the artificial intelligence and machine-learning technology used for natural-language processing in the automated communication system. According to the company, Merlin and CAA New Zealand have agreed on the evidence regulators will require to evaluate those functions.

The Part 23 program is intended to support autonomous operation from takeoff through touchdown rather than provide only pilot-assistance features. Completion of SOI 3 represents another software-review milestone and does not constitute final certification of the Merlin Pilot system.

Matt Ryan

Matt is AVweb's lead editor. His eyes have been turned to the sky for as long as he can remember. Now a fixed-wing pilot, instructor and aviation writer, Matt also leads and teaches a high school aviation program in the Dallas area. Beyond his lifelong obsession with aviation, Matt loves to travel and has lived in Greece, Czechia and Germany for studies and for work.
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