UA: ex Turkish submarine Batiray UB: ex British submarine HMS Seal (N37) UC-1: ex Norwegian submarine HNoMS B-5 UC-2: ex Norwegian submarine HNoMS B-6 UD-1: ex Dutch submarine HNLMS O 8 UD-2: ex Dutch submarine HNLMS O 12[2] UD-3: ex Dutch submarine HNLMS O 25[2] UD-4: ex Dutch submarine HNLMS O 26[2] UD-5: ex Dutch submarine HNLMS O 27[2] UF-1: ex French submarine Africaine (Q196) UF-2: ex French submarine Favorite (Q195) UF-3: ex French submarine Astrée (Q200) UIT-22: ex Italian submarine Alpino Attilio Bagnolini UIT-23: ex Italian submarine Reginaldo Giuliani UIT-24: ex Italian submarine Comandante Cappellini UIT-25: ex Italian submarine Luigi Torelli