What makes the most noise in a submarine?

speed150mph · 10-27-17, 02:40 PM

I was reading the article in the news feed about the Chinese supposedly testing an MHD propulsion system and a question entered my mind that I though I'd put forward to you gents.

Obviously some details are probably classified, and this probably differs from sub type and class and speed and depth. However I'm curious just how much of a modern nuclear submarine's radiated noise signature is produced by the screw pump jet, and other assorted drive components that directly propel the submarine.

By comparison how much noise is produced by the machinery like pumps, hydraulics, electric generators, steam noises from the reactor Ect. How much is created by other factors like flow noise, and crew.

Thanks

10-27-17, 02:40 PM	#1
speed150mph Electrician's Mate Join Date: Feb 2013 Location: Alberta, Canada Posts: 132 Downloads: 35 Uploads: 0	What makes the most noise in a submarine? I was reading the article in the news feed about the Chinese supposedly testing an MHD propulsion system and a question entered my mind that I though I'd put forward to you gents. Obviously some details are probably classified, and this probably differs from sub type and class and speed and depth. However I'm curious just how much of a modern nuclear submarine's radiated noise signature is produced by the screw pump jet, and other assorted drive components that directly propel the submarine. By comparison how much noise is produced by the machinery like pumps, hydraulics, electric generators, steam noises from the reactor Ect. How much is created by other factors like flow noise, and crew. Thanks __________________ Americans make better submarines? No my friend, Russia makes better submarines, Americans just make better computers