Talk:USS Hardhead (SS-365)/@comment-2600:6C63:417F:FE40:51D9:AA01:3F49:D90F-20200120213232

U.S.S. HARDHEAD SS365 HAD 4 GM 278AS ENGINES, NOT FAIRBANKS. IN LATE 50'S AND 60,S SHE WAS CONVERTED TO 3 1600HP GM 278AS AND NO 2 MAIN ENGINE WAS REPLACED WITH A PRAIRIE MASKER.