Flying far is more important than flying fast, Japanese fighter technologists have found in studies aimed at defining their country’s next combat aircraft. Looking for ways for their air force to fight outnumbered, researchers are also emphasizing that Japan’s next fighter should share targeting data, carry a big internal load of large, high-performance missiles and be able to guide them while retreating.
The results of this work may be committed to full-scale development within four years. Japan is holding open the possibility of a joint international program, which the finance ministry would surely prefer, but the defense ministry looks wary of being trapped in a late-running cooperative effort over which it has little control. Specifically national requirements such as the preference for range over speed may also nudge Japan toward going it alone.
Engineers from the defense ministry’s Technical Research & Development Institute (TRDI) and IHI Corp. are well into preliminary development of a surprisingly powerful turbofan for the twin-engine fighter, which would enter service around 2030 as the F-3. TRDI is also handling the studies into the airframe, probably with strong engineering support from Mitsubishi Heavy Industries, which would build the airframe, and Mitsubishi Electric, the country’s dominant military electronic systems supplier.
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