Aviation Historian 13 / V.Kotelnikov - Russia's Real Flying Tanks

A contemporary document detailing the essentials of Nikolai Kamov’s intriguing “heli-tank” concept, actually a heavily-armoured autogyro bristling with machine-guns. The craft’s Mikulin M-34 powerplant was rated at 820 h.p. at 1,850 r.p.m.