D
Naval ForcesRussia

Foxtrot Class (Project 641 Class)

Diesel-electric patrol submarineFielded 1958Pending verification
Naval ForcesRUS
Length 89.9 m
Identification silhouette. Not drawn to scale between entries.
Fact cardConfidence · Source
System
TypeDiesel-electric patrol submarine
Date of introduction1958
ProliferationAt least 6 countries
Units built74 eaMed[1]
Crew12Med[1]
Dimensions and weight
Length89.9 m295 ftMed[1]
Beam7.4 m24 ftMed[1]
Draft5.9 m (19 ft 4 in)Med[1]
Propulsion and performance
Propulsion3 x shafts, each with 6-bladed propellersMed[1]
Speed21 kt39 km/hMed[1]
Endurance45 daysMed[1]
Test depth300 mMed[1]
Armament
Launcher10 × torpedo tubes (6 bow, 4 stern)Med[1]
Armament options22 x torpedoes (anti-submarine or anti-ship)Med[1]
Fire control
CICSYes (Legacy System)Med[1]
SonarTamil 5L sonar systemMed[1]
Variants
Foxtrot Class Patrol SubmarineNo significant changes to the design across the various production countries. Most vessels saw service in the Soviet Navy. Foxtrots were also built for the Indian Navy (eight units, from 1967 to 1974), Libyan (six units, from 1978 to 1980), and Cuban (six…[1]
Summary

The Foxtrot Class (Project 641 Class) Russian Diesel-Electric Patrol Submarine is a class of diesel-electric patrol submarines that were built in the Soviet Union.

Draft entry. Values come from the cited public sources and are awaiting editor verification.
CompareJSON
Operators
CubaIndiaLibyaPolandRussiaUkraine
Sources
  1. Foxtrot Class (Project 641 Class) Russian Diesel-Electric Patrol Submarine, U.S. Army TRADOC G-2 Worldwide Equipment Guide (ODIN)
    Published/updated 2026-03-20 · Tier 1 · checked 2026-10-10
Change log
  • 2026-10-10 Entry created from the Worldwide Equipment Guide (ODIN), bulk import