The Pratt & Whitney PurePower PW1200G engine made its first flight in a significant milestone for Japan's commercial aircraft.
The engine (a PW1217G for the MRJ90) flew on a specially designed stub wing aboard Pratt & Whitney’s Boeing 747SP flying test bed at the company’s Mirabel Aerospace Centre in Quebec, Canada.
Mitsubishi Aircraft Corporation says the 70/90-seat MRJ family will be characterised by exceptional environmental performance and passenger comfort.
The first flight is scheduled for the end of 2013, with the first delivery in 2015.
PW’s PurePower engines use an advanced gear system allowing the fan to operate at a different speed from the low-pressure compressor and turbine.
The combination of the gear system and an all-new advanced core is said to deliver double-digit improvements in fuel efficiency, emissions and noise.