 Blücher was also equipped with four 45 cm ( 18 in ) torpedo tubes . One was placed in the bow , one in the stern , and the other two were placed on the broadside , all below the waterline . The ship carried a total of 11 torpedoes . The torpedoes carried a 110 kg ( 240 lb ) warhead and had two speed settings , which affected the range . At 32 knots ( 59 km / h ; 37 mph ) , the weapon had a range of 2 @,@ 000 m ( 2 @,@ 200 yd ) and at 36 knots ( 67 km / h ; 41 mph ) , the range was reduced to 1 @,@ 500 m ( 1 @,@ 600 yd ) . 
