NIHON KOKU JIEITAI - JASDF

FI-X

Programme for next-generation fighter, to succeed F-15J early in the 21st century. Launched with FY95 allocation of US$10.2 million to IHI to develop new 50 kN class turbofan as power plant, to be test flown in TD-X technology demonstrator.
Preliminary TRDI design proposal for FI-X showed twin-engined configuration with canards, low aspect ratio tapered wings, twin fins and rudders and thrust-vectoring exhaust nozzles.
Construction of up to four prototypes originally expected to begin in FY99 and to include co-cured composites, radar-absorbent materials and digital fly-by-light and engine control systems. Wing span and length provisionally 9.15 m (30 ft) and 13.40 m (44 ft) respectively. Avionics to include conformal radar and IR seeker.
First XF-7 engine was delivered for static testing in June 1998, but FI-X programme has been stretched, and TD-X demonstrator not now expected to fly until 2007.