Russian MiG-31s flew 4,000km non-stop with 3 mid-air refuelings

Russian Air Force MiG-31s have flown non-stop from Zabaikalsky Territory in Siberia to Perm Territory in Russia’s Ural in a six-hour flight that involved three refuelings.

By Alex Beltyukov (http://russianplanes.net/id148046) [CC BY-SA 3.0, CC BY-SA 3.0 or GFDL 1.2], via Wikimedia Commons

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