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Cavitating structures produce huge sonar returns, I think this boat's 'stealth' is greatly exaggerated.


Exactly - great you can't see it on radar, but you can hear it from 50km away.

I guess anti-air applications you can imagine this should be fine.


Helicopters can drop sonobouys.

Also, after watching the video, it doesn't even look like it presents a closed Faraday volume through the windshield (there's usually a wire mesh with a specific transimpedance measured with conformal antennas). It looks like somebody made an angular catamaran, slapped "stealth" on it, and is surprised they don't get an exemption as an arms manufacturer and that the Navy isn't interested in their design.

LO is hard work - the compute time and LO stack up costs way more than the 15 million. And did this company take a scale model and do a full LO radar test out to 40GHz? Did they do field trials?

Some people actually DO that work, and it's hard and expensive. You can't just slap 'stealth' on things. I mean even the coating lifetime in production volumes in a sea-salt atmosphere is, by itself, a serious problem. Just... Ugh.


I'd guess that he thought, "RADAR stealthy", and just ignored the fact that you could hear it coming miles away.




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