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12-04-09, 01:34 AM | #1 |
Bilge Rat
Join Date: Jan 2008
Location: Seattle, WA
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Sonar question
I have a question about current sonar capabilities for anyone here who might have relevant experience. Can passive sonar detect a sail-powered vessel (not running under power)? I'm thinking about a typical pleasure craft, 30ft long, sleeps four. Would active sonar detect a sailboat as well or better than passive sonar?
Thanks in advance for any help you can give. |
12-04-09, 09:37 AM | #2 |
Ocean Warrior
Join Date: Dec 2007
Location: Between test depth and periscope depth
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If it's not making noise, you cant hear it on passive. You might pick up the flow noise of the water around the hull but it might just sound like normal surface action. Active sonar can find anything on the other hand as it sends out a sound pulse and you wait for the sound to be reflected off the contact. You can't classify a contact that way but at least you know something's there.
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USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine. |
01-19-10, 07:55 PM | #3 |
Seaman
Join Date: Feb 2008
Location: Alexandria, VA near Washington DC, USA
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Can't get it to move?
When I try to move the sonar direction dial (the one on the right) it will not move using the mouse on the dial face or by moving the handle below.
I'm using SH4 1.5 with TMO and RSRD and several small mods. It works on some boats, but not the GATO and a few others. Perhaps one of the mods screwed it up??? Any idea on how to reconfig a file so the sonar direction dial setting can be changed manually Mike |
01-19-10, 10:22 PM | #4 |
Ocean Warrior
Join Date: Dec 2007
Location: Between test depth and periscope depth
Posts: 3,021
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I would start by posting this in the SH4 Mods forum. You won't get much help with your problem here.
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USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine. |
01-19-10, 11:34 PM | #5 |
Watch
Join Date: Sep 2005
Posts: 27
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I have another random question about passive sonar/hydrophone. What would happen say if the sonarman happens to hear the explosion of a depth charge near the submarine? Will it cause permanent hearing damage?
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01-20-10, 11:26 AM | #6 |
Ocean Warrior
Join Date: Dec 2007
Location: Between test depth and periscope depth
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Being a sonar tech, you will have long term hearing loss anyways. But if you're being depth charged chances are you would turn down the volume so just that sort of thing doesn't happen. Or you could just take off the headphones.
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USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine. |
01-27-10, 04:52 AM | #7 |
Mate
Join Date: Mar 2005
Location: Germany
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Are there any references that WWII boats (of any nation) could pick up sound contacts while surfaced?
I tried the TMO 1.9 mod the other day and was a little disappointed that i was able to pick up hydrophone contacts while surfaced but some guys claims it is realistic.
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Patriotism is the virtue of the vicious - Oscar Wilde |
01-27-10, 12:19 PM | #8 |
ACE
Join Date: Sep 2002
Location: Kansas City
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What contributes to your hearing loss? Or, after listening to things so closely, do you just not want to listen anymore
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01-27-10, 02:45 PM | #9 | |
Ocean Warrior
Join Date: Dec 2007
Location: Between test depth and periscope depth
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Quote:
Lol, the constant popping of shrimp gets annoying to listen to. But in reality the constant sound that your ears are being exposed to accelerates the hearing loss process. Believe it or not, the ocean is pretty noisy.
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USS Kentucky SSBN 737 (G) Comms Div 2003-2006 Qualified 19 November 03 Yes I was really on a submarine. |
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