Crews of Su-34 bombers of the Western MD tactical aviation practised in-flight refueling over Voronezh region. More than 10 aircraft were involved.
Flights were conducted at complicated weather conditions at day- and nighttime in pairs covered by MiG-29SMT fighter jets.
The refueling was carried out at the altitude of 4,000-6,000 kilometers with the speed of over 700 kilometers per hour.
