A deck gun is a type of naval artillery mounted on the deck of a submarine. Most submarine deck guns were open, with or without a shield; however, a few larger submarines placed these guns in a turret
British Mk XXII 4-inch deck gun from S-class submarine
5"/25 caliber gun on the deck of Balao-class submarine USS Bowfin
Bofors 102 mm/4-inch naval gun from the Romanian submarine Delfinul
Vizeadmiral Lothar von Arnauld de la Perière, born in Posen, Prussia, and of French-German descent, was a German U-boat commander during World War I. With 194 ships and 453,716 gross register tons sun
Deck gun
…ten or fewer during World War I, fired in spreads of multiple warheads to increase the likelihood of a successful hit. An example of this approach was Lothar von Arnauld de la Perière, who used a deck gun or a dynamiting team on 171 of his 194 sinkings. The Royal Navy tried an innovative approach in World War I with its three M-class…