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Old 12-04-2017, 06:33 PM   #41
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If one has more than a rare encounter with fog or whatever obscures vision, it would be a wise investment to acquire a device that sounds the horn at desired/required intervals so one can focus on visual and auditory inputs.
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Old 12-05-2017, 01:42 AM   #42
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If one has more than a rare encounter with fog or whatever obscures vision, it would be a wise investment to acquire a device that sounds the horn at desired/required intervals so one can focus on visual and auditory inputs.
I have one of those! 3 different sounds depending what you are doing. Pairadice and I were making our way down Johnstone Straits in the fog. He was ahead of me about 2 miles or more. He called me and asked if I would turn it off as it was irritating the hell out of him. So I know it works...
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Old 12-05-2017, 08:38 AM   #43
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...it would be a wise investment to acquire a device that sounds the horn at desired/required intervals so one can focus on visual and auditory inputs.
I have one, called FogMate. It's great, but I'd heard the company went out of business. Then I found the FogMate for sale at Hamilton Marine and GoTo Marine. Other sites show them not available or backordered. Not sure if these two just haven't updated their sites, or they have a large stock of old ones, or FogMate is back in production.

Anyone know more details on this product? Any other similar products?
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Old 12-05-2017, 08:55 AM   #44
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Kahlenberg has a variety
Signal Timers and Controls | Kahlenberg

Selene equips many of their vessels with Kahlenberg horns including the timer.
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Old 12-05-2017, 11:23 AM   #45
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I haven't done it but electronic timers, adjustable, and a relay would operate an electric air valve to produce an automatic sounding fog horn. Just need a toggle sw. to arm or disable it.
That same air valve can still be operated by your push buttons at the helm[s]
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Old 12-05-2017, 01:45 PM   #46
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Interesting. It looks exactly like my FogMate. They don't give a list price. The FogMate was/is under $125.
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Old 12-06-2017, 10:19 PM   #47
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Thanks all! Iím going to pull the old horn system apart this weekend, luckily I have lots of space under the fly bridge so hoping I can have a compressor/tank solution I can use to blow up rafts/fenders/etc with as well.

I know it was mentioned there are specific regs for ship sizes, are those all about having a loud enough horn or could I get in trouble if I sound like a freighter?


A freighter I sailed on during the '70s had a horn built into the funnel (smoke stack) that was about 30' long and 8' diameter at the mouth. No way you would be even able to carry it on your boat. When it sounded you could feel the sound waves pass through your body when you were on the nav bridge.
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Old 12-06-2017, 10:49 PM   #48
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Here’s what I have going on right now. My stainless log rusted out after 43 years, new fiberglass log going in.


Also changing out ALL of the bronze through holes and valves. $$$$$$. New cutlass bearings. Shaft checked/aligned/prop checked. The works.
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