Keywords: Petya-class frigate profile 1987.png en Profile of a Soviet Petya-class Project 159 SKR-1 frigate http //www navy mil/ah_online/department_arch html U S Navy All Hands magazine http //www navy mil/ah_online/archpdf/ah198711 pdf November 1987 p 45 U S Navy 1987 PD-USGov-Military-Navy SKR-1 class frigate |