J-20 Engines More Powerful than Those Used in Fighter Jets AbroadPosted: October 26, 2016
Mil.huanqiu.com says in its report yesterday that according to a Russian website’s report on October 25, China has entered into a contract to buy 100 AL-31 and 100 D-30 aircraft engines from Russia to be delivered in three years.
Based on the above Russian report, Vassily Kashin, a Russian senior research fellow at the Center for Comprehensive European and International Studies at the National Research University—Higher School of Economics, believes that China has to import Russian aircraft engines as it is not satisfied with its homegrown aircraft engines.
According to CCTV’s report in early May, one existing production line in a WS-10 engine workshop was able to produce 100 WS-10s a year. The workshop is operating 24 hours a day due to the large demand for the engines to be installed in Chinese advanced fighter jets. From that report, we see that the import of 100 AL-31s in three years is negligible compared with the demand.
WS-10 weighs 1,706 kg, has a thrust of 138 kN and a thrust-weight ratio of 8.1. Its operation is quite stable to satisfy the needs of advanced Chinese fighter jets including J-10, J-11, J-15 and J-16.
J-20 Uses Very Powerful Chinese Homegrown Aircraft Engines
The mil.huanqiu.com report says that a video footage more than 4 minutes long taken during the National Day festival (a week around October 1) shows two J-20 doing highly difficult maneuvers in formation including looping in succession, vertical climb-ups and sharp 180 degree turns. According to military expert Du Wenlong, to do a sharp 180 degree turn, a J-20 must use a Chinese homegrown vectored thrust engine. He believes that the engines J-20 is using are at least a little better than those used in fighter jets abroad.
According to Du, there are no engine supply problems for J-20 now.
Source: mil.huanqiu.com “China’s homegrown engines still unsatisfactory? Russia says that China import a large number of Russian engines” (summary by Chan Kai Yee based on the report in Chinese)