Mitsubishi Aircraft Corporation has been engaged in the development of the Mitsubishi
Regional Jet (MRJ), Japan's first domestically-produced commercial jet. Compared with other
regional jets currently in operation, the MRJ cuts fuel consumption by more than 20% and realizes
an advanced level of environmental compatibility along with reduced maintenance costs, thereby
differentiating itself from its competitors. Included in the feature line-up is the engine, which is a
Pratt & Whitney (P&W) geared turbo fan (GTF). As the first adoption in a commercial jet aircraft,
the engine was developed specifically for this application, and acquired the type certificate under
the name of PW1200G in May 2017. At the stage of mass production, Mitsubishi Heavy Industries
Aero Engines, Ltd. (MHIAEL) will be responsible for the production of the combustor and
high-pressure turbine disks, the final assembly, and the acceptance testing. This will be the first
operation of the final assembly of newly-produced engines for commercial aircraft in Japan (the 6th
in the world). This report presents the technological characteristics of the PW1200G engine and our
ongoing projects including development and mass production.
