The frigates "Charlottetown" and "Shawinigan" of the Royal Canadian Navy monitored the Russian submarine of project 636 "Varshavyanka" and surface ships in various maritime zones. This is reported by Army Recognition.
Both Canadian frigates are designed for anti-submarine warfare. They are equipped with modern sonar systems and weapons.
The Improved Kilo-class submarine (Project 636.3 "Varshavyanka", NATO designation Improved Kilo) is one of Russia's most advanced non-nuclear submarines. It is known for its ultra-quiet operation, especially in shallow or coastal waters.
Submarines of this class have low-noise propellers. Kilos are equipped with six 533-mm torpedo tubes that launch torpedoes and Kalibr cruise missiles.
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