Russia and China may sign a contract for delivery of advanced Su-35 fighters in 2014, Interfax reports with reference to a source close to the system of military-technical cooperation.

"The deliveries of Su-35 fighters to China may be started in late 2014 or early 2015", - the source said. We remind you that initially it was planned to sign this contract in 2013.

According to the source, “the same number of jets (24 ones) is specified in the draft contract”. "However, the Chinese party has put forward some new claims: Beijing wants to purchase vehicles modified in accordance with the requirements of Chinese air forces", - the source said.

He did not unveil any of the abovementioned requirements of the China’s air forces.