Rivals Join For Next Stage Of PAK FA Engine

http://www.aviationweek.com/aw/generic/story_channel.jsp?channel=defense&id=news/awst/2010/04/26/AW_04_26_2010_p31-221698.xml

Russia's two engine manufacturers are to collaborate on the next stage of engine development for the Sukhoi T-50 fifth-generation fighter after years of going head-to-head as rivals.