Greenlawn, N.Y. – September 29, 2026 -- BAE Systems has secured AIMS certification from the Department of War for its new AN/APX-127(V)1 Combined Interrogator Transponder (CIT), clearing the Identification Friend or Foe (IFF) system for use on the U.S. Air Force's F-16 Fighting Falcon fleet.
Certification confirms interoperability across U.S. and NATO forces
The AIMS standard verifies the system meets joint U.S. and NATO requirements, allowing pilots to distinguish allied aircraft from potential threats in contested airspace. The AN/APX-127(V)1 is AIMS Mark XIIB IFF certified with Mode S and Mode 5 capability for encrypted data exchange, and adds receive channels for passive acquisition of Mode 5 Level 2 and Automatic Dependent Surveillance – Broadcast In signals.
System consolidates interrogator and transponder functions into single unit
The CIT merges both functions into one box designed for highly maneuverable aircraft, with an open-system architecture that supports software upgrades rather than hardware overhauls. Sharing the same form factor as legacy units, it serves as a drop-in replacement for the AN/APX-113(V), AN/APX-125(V), and AN/APX-126(V) systems currently deployed across multiple U.S. and international platforms.
Production begins this year with initial 90-unit lot
BAE Systems manufactures the AN/APX-127(V)1 at its Greenlawn, New York, and Austin, Texas facilities. The company expects to begin deliveries on the first production lot of 90 units before the end of the year.
"We are investing in the next generation of our IFF technology to support our customers' missions for today and tomorrow,