Translation for the non-Chinese readers here:
Kefu Ping assessment, basic tactics is the use ofstealth, implementation of pre-emptive strike, all main features of 5th generation fighters. The pursuit of stealth or high mobility, United States and Russia have focused on elevating these areas in fighter design. F-22 mobility is not as agile as Su30MKI/MKM.
Russian 5th generation fighter will be have its first test flight in 2009.
Source claim China 4th generation fighter (5th in western terms) is about to enter wind tunnel test stage. Time managment and schedule for this 4th generation fighter have been smooth with sufficient funds for development.
System management methods are closer to that of the U.S then Russia. Shenyang like Chengdu may have 2 designs for its 5th generation fighter, will conduct wind tunnel test soon.
Chinese F-22 counterpart should be equal or near in terms of size and weight class. China open 2 wind-tunnel test model shows that 2 designs are about 18 meters long﹑ 5 meters high, wingspan 13 meters. Empty weight 15 tons and 30 tonnes loaded.
China does not intend to assert force, but rather retain friendly relationship, but wants the defence and offence capability if needed. Still most important is air defence, and offence is for scneario such as Tawain. Its design will bear some F-22 characteristics. F-22 used vector nozzle vetical axis of 20 degrees. China's newly open vector nozzle can be 360-degree vertical or horizontal. Therefore, the engine nozzle can only be extended, at the expense of stealth comprimisation of increasing the heat signature by extending the nozzle externally rather then internally. Greater mobility can be achieved, so sacrafising stealth for mobilty or mobilty for stealth.
F22 is the first to achieve a practical supersonic cruise fighter. At present, China has not been able to produce something similar in terms of thrust as the F-119 (engines of F-22). Sources claim that China's WS10A has thrust higher than that of AL31F.
The J-10A's development has seen in recent years, as China's aviation composite materials technology breakthrough. Estimation indicate that China's 5th generation fighter will use even further more composite materials then that of the J-10.
That took me a while so their might be few translation errors, but overall you get the picture. hope you guys appreciate this ^.-