>>192
そういえば以前こんな飛ばし記事があったな

Japan seeks foreign engines for stealth fighter prototypes
By Leithen Francis
http://www.flightglobal.com/articles/2010/04/27/341145/japan-seeks-foreign-engines-for-stealth-fighter-prototypes.html
Japan is looking to use foreign engines for the prototype aircraft needed
for its fifth-generation fighter programme.
The ATD-X Shinshin programme is still in the study stage, but industry
sources in Japan and overseas say Tokyo has issued a document to
engine-makers seeking information and pricing on powerplants needed for
two prototype aircraft.

なんで外国製エンジン？って感じだった