 Kaiserin und Königin Maria Theresia was armed with a main battery of two 24 cm K L / 35 guns , manufactured by Krupp , and mounted in two single turrets , one forward and one aft . These guns were the primary offensive armament . For defense against torpedo boats , she also carried eight Krupp 8 cm SK L / 35 guns , twelve Skoda 4 @.@ 7 cm SK L / 44 guns , six Hotchkiss 47 mm L / 33 guns , and a pair of 7 cm L / 15 landing guns ; these guns were primarily mounted in casemates or sponsons . The landing guns could be taken ashore to provide support for a landing party . Her armament was rounded out by four 45 cm ( 18 in ) torpedo tubes , one in the bow , one in the stern , and one on each side . Both the main battery turrets and the armored belt were protected by 100 mm ( 3 @.@ 9 in ) thick steel armor . The main deck was 38 to 57 mm ( 1 @.@ 5 to 2 @.@ 2 in ) thick . The casemates were armored with 80 mm ( 3 @.@ 1 in ) of steel , and the conning tower had 50 mm ( 2 @.@ 0 in ) thick sides . 
