Event Brief
Oct 9, 2026 at 4:00 PM ET
BAE to Install Block 4 F-35 EW Systems
By The BriefBrief · Sources (1)
BAE Systems received a contract from Lockheed Martin to install upgraded AN/ASQ-239 electronic warfare systems on F-35s in production lots 20 through 22 and retrofit some older aircraft. BAE says it is developing Block 4 systems with adaptable hardware and incremental software updates.
WHO: BAE Systems
WHAT: Received a Lockheed Martin contract to install and retrofit upgraded F-35 electronic warfare systems.
WHEN: Reported Oct 9, 2026
WHERE: Location not specified
WHY: The systems are part of the F-35 Block 4 upgrade program, which BAE says will deliver advanced electronic warfare capabilities through adaptable hardware and incremental software updates.
How this brief is built: The BriefBrief uses multi-source information fusion to correlate reporting across sources, identify related developments, and continuously update a structured WHO, WHAT, WHEN, WHERE and WHY event picture. Pattern arcs, source analysis, and velocity indicators provide deeper analysis in our MI Console.
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