The Pratt & Whitney PurePower® PW1200G engine successfully completed its first flight on April 30 2012, launching the engine family’s flight test program.
The new Pratt & Whitney engine is mounted on a on a specially designed stub wing aboard Pratt & Whitney’s Boeing 747SP flying test bed C-FPAW MSN: 21934.
The flight was made from Montreal’s Mirabel Airport (YMX) in Canada

The test flight followed days of intense tests and ground preparations. On the image above you can see the specially designed stub wing, which is placed just aft of the co-pilot’s seat.
Enjoy this video of the event.
Source: Pratt & Whitney – purepower_newsletter_050112