The War in the Ukraine

Stealthflanker said:

So apparently Ukies Underwater drone was able to penetrate to Novorossyisk and blow up near a submarine. Which, unfortunate, but seriously considering Ukraine already showcasing underwater drones for like.. a year. No anti submarine netting was considered for the port really ?

Click to expand...

I suspect they didn't actually hit anything this time:

Red was what the drone was targeting, they seem to identify that small building as a submarine sail.
Blue are two of BSF's Kilo



Nevertheless the fact that the UUV managed to sneak in there shows a serious weakness in Russian harbour defence.

The Ukrainian underwater drone "Sub Sea Baby" attempted its first attack on the Russian Project 636.3 submarine Varshavyanka in the bay of the Novorossiysk naval base. It is unknown how the drone entered the base, but it is believed it passed through during the deployment of booms, which were monitored by a camera in the port. The drone missed the submarine and struck a nearby pier. Officially, the submarine was undamaged. It is worth noting that without increased port security, the next attack could be effective.

See if people share Sat pictures of the port.. the possible real indication of damage would be presence of oil slick.

Double Hull submarine's fuel tank, beside internal one, may have external tank in the outer hull/light hull. This tank is not watertight, in fact as the tank is being used, water will naturally come in to displace the reduced volume of fuel being consumed. Given the light hull's lighter material compared to internal and stronger pressure hull, if the drone attack does have impact to the submarine, the tank could be punctured or rupture and oil leaks.