China started to build a J-14 in 2006 and its maiden flight in July 2008 was a success, according to an Internet posting on a popular Chinese military web site. The posting comments on the features of the fourth-generation fighter: First, it maximizes flight time of combat aircraft during supersonic flights. Second, it uses a large number of stealth materials and technology. Thirdly, its taking off and landing performance is greatly improved.
The posting contains a photo of a J-14 under construction.