Interesting article about missiles and ships, predates sinking, talks of Neptune missiles staying very close the surface.
Just twenty anti-ship missiles and their accompanying systems could wipe out all of Russia’s big warships in the Black Sea and Sea of Azov. Anti-ship missiles that were announced yesterday will soon be deployed in significant numbers in Ukraine will be a game-changer much like J
realcontextnews.com
The Ukrainians had 'updated' existing Soviet anti-ship missiles in 2021 and these are now called 'Neptune' missiles. In one release overnight the Ukrainian military claimed (credibly) that they used one of these on the amphibious landing ship docked at the Azov Sea port some weeks ago and used two yesterday in combination with one (or more) massively low-cost (in comparison to their Neptune missiles) drone(s).
It looks as if this was nearly a one-shot roll of the dice. The Russians may learn from this mistake. Trouble is they've lost their primary comannd & control ship in the Black Sea (along with up to 64 AS300F missiles (anti-aircraft, anti-ballistic missile) with a range of up to 90km). Not to mention around 1/3rd of the combined fleet radar/sonar capability.
The CIWS (close-in-weapons-systems) have one major shortcoming. The Russian one, allegedly, has the biggest shortcoming - virtually one shot wonders. A CIWS works by 'painting' a lead wall of some metres by some metres dimensions a distance from the ship in a VERY short time. This lead wall is created in no more than a few seconds from a massively high rate of fire, which nearly super-heats the gun barrels resulting in the CIWS having to be both reloaded and allowed to cool.
Russia never planned to be the defender with its navy, always the attacker - so these CIWS were designed to allow it to fully expend its offensive weapons which would (obviously) wipe out the enemy.
Ukraine, and others know this well. So Ukraine used one (or more) drones to approach the ship, 'jump up' just like a typical anti-ship missile and 'dive down'.
The Chinese know this and have publicly announced (after 'obtaining' the tech details) that their plan is to overwhelm US Carrier Battle Groups by weight of numbers using lower cost missiles in the first 90 seconds to fully or nearly fully expend all US CIWS before a large number of ship killer missiles arrive to sink the carrier and then progressively smaller vessels. Guess why no US CBGs go through the South China Sea since the coral reefs were built on?
The Russian CIWS calculates the profile of the dive trajectory and 'paints' its lead wall. However the drone only stays on the dive trajectory for a (very) short time if the operator has judged how long is required to trick the CIWS.
Given the relative costs of the drones vs Neptune missiles (and available number of each) - I suspect that around three drones were sent out (& maybe all used). If the 1st drone worked perfectly then it would have risen at an extreme angle to the projected impact path - thus living to fight another time.
Likely a second drone then commences its run from a different angle, but same side of the ship, to ensure no CIWS capacity is left for when the missiles arrive imminently.
At worst the Ukraine lost 2 drones (IMHO), at best they lost none.
Meanwhile the Russians realise what is happening - we've been tricked, take the CIWS of full auto while they reload and cool. Just as the two Neptune missiles coming from virtually the same angles, rise up & plough into it.
Makes people who had drones, as a hobby, now the most sought after 'service' personnel in the Ukraine. If interested, there are a few stories on them - pointedly all on them as helping the army. Gotta love the planning of the Ukranian Govt/Military media machine.