Interesting Engineering on MSN

AK-47 of seas? How Russian ‘Black Hole’ submarines are losing the edge in drone era

For decades, Russia’s Kilo-class submarines were among the most recognizable diesel-electric attack submarines in ...
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Can Iran’s ‘Black Hole’ submarines sink a US aircraft carrier? Inside the silent war brewing in the Strait of Hormuz

Tensions are rising in the Strait of Hormuz, one of the world’s busiest sea routes. U.S. carrier strike groups now operate in these waters. Iran relies on its quiet “Black Hole” Kilo-class submarines.
The National Interest

This Russian Submarine Is Called the “Black Hole” For One Terrifying Reason

Twenty-four Kilo-class submarines were operated by the Soviet Union, of which eleven are still operated by Russia. One was sold to Poland, which remains operational, but another, sold to Romania, is ...
The National Interest

‘Chain-Reaction Explosion’: How A Russian-Built ‘Black Hole’ Submarine Sank

What You Need to Know: In August 2013, the Indian Navy’s Kilo-class diesel-electric submarine INS Sindhurakshak suffered a catastrophic explosion while docked in Mumbai, marking the worst peacetime ...
WRAL

In a first, Ukraine says it struck Russian submarine in Black Sea port with underwater drones

(CNN) — Ukraine’s domestic security service, the SBU, said Monday that it struck a Russian submarine in the Black Sea port of Novorossiysk, causing critical damage to the vessel and effectively ...