Submarine classes

Project 644

NATO: Whiskey Twin Cylinder

USSR

SSG

Project 651

NATO: Juliett

USSR

SSG

Project 651 (Silver-Zinc)

NATO: Juliett (mod)

USSR

SSG

Project 651E

NATO: Juliett (mod)

USSR

SSG

Project 651K

NATO: Juliett (mod)

USSR

SSG

Project 651T

NATO: Juliett (mod)

USSR

SSG

Project 665

NATO: Whiskey Long Bin

USSR

SSG