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Interesting post on https://files01.core.ac.uk/download/pdf/36710555.pdf

A postgrad analysis of laser weapons aboard Navy ships:
A 100 kW beam would needed to defeat a small boat at 1 km, rising to 1.6 MW against a larger threat with a proper hull at 2 km, mainly due to the difficult marine environment the laser has to traverse.
Als interesting in light of the "Trump battleship discussion".

Thanks for the data. I have an interest in this topic.

I have provided a link to view the US Preble (DDG88) and the seas trial for this weapon (HELIOS):

https://www.google.com/search?q=what+us ... t02q4,st:0

It is pretty accurate, but uses a lot of power. This article was posted in March/2025, so I would assume that it is somewhat up to date. I gather that the US Preble is the only destroyer that has this installed. Please let me know if the installation has been expanded to other ships since the article has been published and was released on YouTube.

I'd like to know if the weapon is now considered to be "operational", or is it merely a test platform at this point. If anyone has some information about that I would appreciate it.