According to the latest knowledge, there're 8 flying J-20 prototypes, 1 static test prototype.
One each was built in 2011 and 2012, four in 2014, and two in 2015.2001 first flight on Jan 11, 2011
2002 first flight on May 16, 2012
2004 refurbished from 2002
2011 first flight on Mar 1, 2014
2012 first flight on Jul 26, 2014
2013 first flight on Nov 29, 2014
2015 first flight on Dec 19, 2014
2016 first flight on Sep 18, 2015
2017 first flight on Nov 24, 2015
2101 production batch aircraft first seen on Dec 2015.
Related link: PLAAF pix chain link
