Editing Gato-class submarine (section)

====Engine changes====
[[File:USS Cod, Engine Room, GM Cleveland Model 248 Engine.jpg|thumb|left|[[Electro-Motive Diesel|General Motors]] [[Cleveland Diesel Engine Division|Cleveland Model]] 16-248 diesel engine]]
[[File:Fairbanks Morse & Co. 38 8-1-8 diesel engine on the USS Silversides 2.jpg|thumb|left|[[Fairbanks-Morse]] Model 38D{{frac|8|1|8}} diesel engine]]

Twelve submarines of this class built by Electric Boat (SS-253 to SS-264) received what would be the final installations of the [[Hooven-Owens-Rentschler]] (H.O.R.) [[double-acting cylinder|double-acting]] [[diesel engine]]. The Navy had been tinkering with this engine off and on since 1937 because its unique design promised nearly twice the horsepower in a package the same size as other diesel engine types. Unfortunately, the Hooven-Owens-Rentschler company ran into severe design and manufacturing problems, and these engines proved to be operational and maintenance nightmares.<ref>{{harvnb|Friedman|1995|pp=263, 360–361}}</ref> Frequent breakdowns and utter unreliability had destroyed these engines' reputation with the Navy and they were all removed at the first opportunity and replaced by [[Electro-Motive Diesel|General Motors]] [[Cleveland Diesel Engine Division|Cleveland Model]]
16-278A V-type diesels. The other ''Gato''-class ships received either the [[Fairbanks-Morse]] [[Fairbanks Morse 38 8-1/8 diesel engine|38D 8-1/8]] nine-cylinder [[opposed-piston engine]] or the 
[[Electro-Motive Diesel|General Motors]] [[Cleveland Diesel Engine Division|Cleveland Model]] 16-248 V-type as original installations. These engines were hardy, rugged, and well liked by the crews and served the ships quite well.<ref>{{harvnb|Alden|1979|pp=90, 210–212}}</ref> Both the Fairbanks-Morse and General Motors engines were [[two-stroke cycle]] types.<ref>{{cite press release|last=Stern|first= Robert C. |date=2006|title=Gato-Class Submarines in action|url=https://quietwarriors.files.wordpress.com/2014/02/squadron-signal-4028-gato-class-submarines1.pdf|publisher= Squadron Signal Publications|access-date=2023-09-17}}</ref>

Two manufacturers supplied electric motors for the ''Gato'' class. [[Elliott Company]] motors were fitted primarily to boats with Fairbanks-Morse engines. [[General Electric]] motors were fitted primarily to boats with General Motors engines, but some Fairbanks-Morse boats received General Electric motors.<ref>{{Cite web|url=https://maritime.org/doc/fleetsub/elect/chap2.php/|title=Submarine Electrical Systems|website= www.maritime.org/}}</ref>