"We need our own radar that we don't share with others."
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Unit cost
F-35A: US$48 million
F-35B: US$62 million
F-35C: US$63 million
In 2003, Israel signed a letter of agreement, worth almost $20 million, to formally join the system development and demonstration (SDD) effort for the F-35 as a "security cooperation participant". The Israeli Air Force (IAF) stated in 2006 that the F-35 is a key part of IAF's recapitalization plans, and that Israel intends to buy over 100 F-35A fighters at an estimated cost of over $5 billion to replace their F-16s over time. Israel was temporarily reinstated as a partner in the development of the F-35 on 31 July 2006, after Israeli participation was put on hold following the Chinese arms deal crisis.wikipedia