The contractual milestone ends a four-year negotiating process with the F-35 Joint Program Office as the U.S. Air Force evaluates a replacement engine.
Australia can buy up to 63 Northrop Grumman-built, long-range anti-radiation missiles worth up to $506 million, the U.S. government announced on Feb. 27.
The Electronically-Scanned Multifunction Reconfigurable Integrated Sensor is being developed to perform the functions of a radar, jammer and data link.
As the USAF looks to develop uncrewed collaborative combat aircraft to fly with future fighters, the service is also rethinking how it organizes these fleets.
The F-35 now can use the Multi-Utilization Secure Tactical And Network Ground Station, a ground system that receives and relays data from an in-flight F-35.