Preveze class type 209-1400 and at the back Ay class Type 209-1200?
-The Preveze-Class Submarines Mid-Life Modernisation Project (PMMP) includes the upgrade of four Preveze-class submarines, TCG Preveze (S-353), TCG Sakarya (S-354), TCG 18 Mart (S-355) and TCG Anafartalar (S-356).
-MÜREN...