 During this refit her boilers and steam engines were replaced by diesel engines , the pumps for the firefighting system were replaced , the single propeller was replaced with twin propellers , the fixed firefighting platform was replaced with a hydraulically operated platform and the twin funnels were replaced with lower dummy funnels . Upon her return in 1954 , she was renamed Firefighter . In 1955 she was renamed again in honor of Edward M. Cotter , a respected Buffalo firefighter and the leader of the local firefighters union , who had recently died . After the refit Edward M. Cotter mounted five fire monitors capable of pumping 15 @,@ 000 US gallons per minute ( 0 @.@ 95 m3 / s ; 12 @,@ 000 imp gal / min ) . 
