surveillance ships Balzam class Okean class (modified trawler) Primor'ye class (modified fish factory ships) Vishnya class Yug class Alpinist class Oceanographic research ships Nikolay Zubov class (AGOR & AGI) Sibirykov class Yug class Survey ships Moma class (AGS) Samara class (AGS) Finik class Biya class Kamenka class Vinograd'' class See also List of ships of World War II References External links Andrew Toppan's Haze Gray & Underway Soviet Navy Russian and Soviet military-related lists