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ちなみにF-5なら、みんなお馴染みのIAI

The F-5 trainer aircraft upgrade configuration, provide capabilities for lead-in pilot training
for fighter aircraft such as the F-16 and F-18.

These upgrades include the integration of a glass cockpit,

however instead of integrating costly sensors, they utilize

"virtual" systems to provide accurately simulated operational behavior of

actual Radar, EW and Weapon systems.
These upgrades also include systems that support pilot training and debriefing.

https://www.iai.co.il/p/f-5-upgrades