The guns are aircraft Degtyarevs (DA-2), and appear to not have the drums mounted when the photo was taken. Note the vane-type front sight, and the distinctive muzzle brakes.
We came across an interesting manual (in English, as a bonus!) for a variety of Hotchkiss machine gun which we have very little information on. It’s an aircraft gun, intended for use by the observer […]
A pointed account of the Schwarzlose M1907 aircraft machine gun, from John Biggins’ hilarious description of the Austro-Hungarian Empire in WWI, The Two-Headed Eagle (The Otto Prohaska Novels): The 8mm Schwarzlose had been the Austro-Hungarian […]