MOSCOW, June 8 (Xinhuanet) -- Russia's fifth-generation fighter jets, which are being developed, will test-fly in 2007, Air Force Commander-in-Chief Vladimir Mikhailov said Wednesday.

    The development of the fifth-generation fighter jet is proceeding strictly as scheduled, Mikhailov was quoted as saying by the Itar-Tass news agency. He gave no details of the new jet.

    Speaking about the Air Force's aircraft fleet, Mikhailov said: "The Air Force receives planes in sufficient numbers. There are aircraft at the reserve bases, too."

    "We are also receiving new planes, including the Su-34 and Su-27SM, and others are still being tested. There is nothing we can criticize these planes for," Mikhailov said.

    Russian presidential adviser Alexander Burutin told reporters that 60 percent of the Air Force will be upgraded with new aviation technologies by 2012.

    "A new armament program has been developed and we shall achieve this goal by 2010-2012," he said. Enditem