Um, IF a prototype flies by 2011, there is absolutely no guarantee it will be deployed by 2014. Jf-17, granted, took just 4-5 years from prototype flight to (very) limited deployment but that program is way way less complex than jxx will be. J-10 flew in 1996. and it took it 7 years to be deployed in even smallest of numbers. And it was still less complex than jxx will be. Better comparison may be JSF, which took from the maiden flight of the prototype to f-35 in service will take 11 years. Now, sure, there was politics involved, perhaps unsure funding, it could've slowed it down... but realistically, i don't see deployment before 2018, if first flight is achieved in, say, 2011. 7-8 years, minimum, and even that would set a precedant. for full operational capability we'd have to add several more years.