"Haruna" was drydocked throughout May 1942 for general repairs and refits. The boats have received major upgrades and numerous refits since commissioning. Both ships finally underwent major refits in 1944. However, the shipyard has a history of protracted refits. The replica has undergone several refits to extend her life. INS "Jalashwa" has undergone two refits. They were identical to the Royal Navy vessels when built but were altered during refits. The ships began undergoing their DELEX refits in the early 1980s. The twin Bofors, torpedo launcher, and Limbo mortar were all removed during various refits. After the war, "Texas" returned to peacetime duty, interrupted by several refits. The SOUP refits were performed during the submarines' mid-life refits. This is despite the stores having undergone a couple of internal refits since the takeover. The ships all underwent refits before the next leg of the voyage. The "Long Beach" had been refueled during her 1970, 1980, and 1992 refits. This organisation was also responsible for arranging and overseeing ship refits.