In a statement on Aug. 28, the Pentagon did not specify the development for Israel’s JSF. But the statement provided the first indication that the aircraft ordered by Israel could contain features not found in the off-the-shelf model of the fifth generation aircraft.
In July, Israel and the United States were said to have agreed on the integration of Israeli-origin subsystems in JSF. The agreement envisioned the installation of Israeli electronic warfare and communications systems in a configuration that would eventually be made available to other JSF clients.
Full article: U.S. preparing F-35s modified to Israel’s specifications (World Tribune)