Flight tests of the PW1200G geared turbofan for Mitsubishi’s Regional Jet (MRJ) got under way at Mirabel, Canada, on April 30. The engine was flown on Pratt’s second Boeing 747SP flying testbed, which is modified with an upper fuselage-mounted stub wing to test smaller turbofans and turboprops. Pratt & Whitney expects to run through the initial flight test campaign as planned despite Mitsubishi’s announcement in late April that it has delayed delivery of the first aircraft by up ...

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