 Szent István , built at Fiume , differed from her half @-@ sisters mainly in her machinery . She only had two shafts and two turbines , unlike the four shaft arrangement of the other ships of her class . External differences included a platform built around the fore funnel which extended from the bridge to the after funnel and on which several searchlights were installed . A further distinguishing feature was the modified ventilator trunk in front of the mainmast . She was the only ship of her class not to be fitted with torpedo nets . 
