Boom Defense, Everything Old is New Again

A little footnote on the War in Ukraine. This is from Covert Shores “Attack On Kerch Bridge: Initial Geolocation Of Damage.” A section at the bottom of the post is a look at increased Russian activity after the attack on the bridge.

Take a look at the detail picture of the harbor, above, top, near the center, second from the right. The thin wavy line is a boom or net accross the entrence to Sevastopol harbor.

Steel floats for anti-submarine nets, 1953

Anti-submarine nets were common during WWII, and booms go back to at least the American Revolution if not to antiquity. This may be in response to Ukraine’s apparent use of unmanned surface vessels. I have seen some barriers deployed around aircraft carriers moored at North Island in San Diego.

What does this have to do with the Coast Guard? Buoy tenders were commonly used as Net Tenders during WWII, opening and closing the anti-submarine nets.

Armed unmanned surface and subsurface vehicles are providing a new reason to deploy nets and barriers. We may see a return of these systems.

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