Fighter units of the Japan Air Self-Defense Force
…up to six trainer aircraft. Originally these were Lockheed T-33As, but from 1988 they were replaced by the Kawasaki T-4. Mitsubishi also worked on the X-2 Shinshin as what many consider to be Japan's first stealth fighter. From the 1950s to the 1970s the JASDF's fighter squadron numbering system was based on the…