 The three ships carried a variety of 8 @.@ 8 cm ( 3 @.@ 5 in ) SK L / 45 guns in several <unk> . The Derfflinger @-@ class ships were initially equipped with eight of these weapons , all in single mounts ; four were placed in the forward superstructure and four in the aft superstructure . The ships also carried four 8 @.@ 8 cm Flak L / 45 anti @-@ aircraft guns , which were <unk> around the forward funnel , with the exception of Lützow , which carried the Flak guns around the rear funnel . After 1916 , the four 8 @.@ 8 cm guns in the forward superstructure were removed . The Flak guns were <unk> in <unk> C / 13 mountings , which allowed depression to − 10 degrees and elevation to 70 degrees . These guns fired 9 kg ( 19 @.@ 8 lb ) shells , and had an effective ceiling of 9 @,@ 150 m ( 30 @,@ <unk> ft 8 in ) at 70 degrees . 
