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Old 09-19-2015, 03:48 PM   #21
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I'm the guy who sold the K-380 horns referenced in the first post. They were significantly under rated for my boat (45' rated on a 65' boat). I ended up upgrading to the D-0A horns and compressor package which is IMO certified for up to 65', and I'm 64.5'.
I'm the guy who bought the K-380 horns from Twistedtree. (Thanks again, Peter!!) They're proudly installed on my 34 footer. When I first tested them after installation in my slip, the USCG crews who are docked behind my slip gave me an approval cheer.

They are appropriately sized for my vessel and are very loud! I have a fwd stbd door and felt they'd be too loud to use when the door is open so I mounted them on the port side. I try to always warn crew and passengers before sounding the horns.

The final cost due to an insurance claim on damage to the horns in shipping resulted in a final cost of 0.164 BU. Best $$ I've spent all year on my boat!

Model K-380 Chrome | Kahlenberg
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Old 09-19-2015, 05:12 PM   #22
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The final cost due to an insurance claim on damage to the horns in shipping resulted in a final cost of 0.164 BU. Best $$ I've spent all year on my boat!
I'll try to smash more shipments, however UPS seems to be doing an excellent job on my behalf
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Old 09-19-2015, 05:48 PM   #23
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Think we'll be going for this little electric one...123 dB @ 290 Hz;

International Shorty Horn | Marinco

Under $100.00 and has just the rugged swashbuckling machismo sound our vessel deserves
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Old 09-19-2015, 05:58 PM   #24
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Think we'll be going for this little electric one...123 dB @ 290 Hz;

International Shorty Horn | Marinco

Under $100.00 and has just the rugged swashbuckling machismo sound our vessel deserves
Are you mounting that on your kayak? It might scare the birds out of your way.
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Old 09-19-2015, 06:45 PM   #25
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Are you mounting that on your kayak? It might scare the birds out of your way.
Nope. The kayaks are for super ninja stealth mode approaches to wildlife, so no need for a horn. Then again, it could scare away the bigger critters if they ever figure out that kayaks are crunchy on the outside and chewy/juicy in the middle...

Actually, with the amount of vessel traffic where we live (usually have miles between vessels and anchorages to ourselves) the horn will be mostly for CG compliance. Planning on going to Vancouver in a couple years, so might need it then.
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Old 09-20-2015, 01:28 AM   #26
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Then again, it could scare away the bigger critters if they ever figure out that kayaks are crunchy on the outside and chewy/juicy in the middle...
Classic!!


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Old 09-20-2015, 10:21 AM   #27
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So I'm reading this thread and thinking it might be a good idea to upgrade to a Kalenberg air horn during the refit. How about a nice whistle also while I'm at it. It's probably an omen when they don't list the air cfm requirment for the whistles. Seems the one I like requires 1-1/4" pipe. Maybe I'll just focus on a horn.

Edit: Found it in the specifications, 838 scfm.

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Old 09-21-2015, 09:17 PM   #28
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OK, nobody responded to my earlier thread questioning everyone's concern about the frequency of their horn, so I have another question:


How many times a year to you sound off with your horn?
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Old 09-21-2015, 09:21 PM   #29
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Sound my horn at least once each time I take the boat out. If no pressing need, to at least test its functioning. Same with the thruster.
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Old 09-21-2015, 09:37 PM   #30
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Usually when crossing the Gulf Stream I'll use it couple times to verify it works. Other then that don't use it much.
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Old 09-21-2015, 10:11 PM   #31
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I'll use it when I see somebody I know far from home, or if I want to startle my friends.
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Old 09-21-2015, 10:19 PM   #32
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I can use mine to get a seagull of a piling.
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Old 09-21-2015, 10:24 PM   #33
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Twice per trip coming and going from the marina...the Coasties are right there behind me, so I'm trying to gain some trawler cred. Then if I ever see a kayaker in the main river, I use it as I pass him just to scare the bejeebees out of him. Then when I see a ferry, I blow it as a greeting to all the passengers. If there are kids on the shore pumping their fists up and down, I will give them a long blow.

Other than that, I hardly ever use it.
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Old 09-21-2015, 10:46 PM   #34
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I use it as I pass him just to scare the bejeebees out of him. Then when I see a ferry, I blow it as a greeting to all the passengers. If there are kids on the shore pumping their fists up and down, I will give them a long blow.
Having access to a big ass horn has been a perk of my job. People never seem to get tired of it. It's like being in a parade wherever I go. Some people lose their minds with excitement and childlike joy. Some kids start crying and fall down. Either way, its very satisfying.

Does that make me a bad person?
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Old 09-21-2015, 11:40 PM   #35
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OK, nobody responded to my earlier thread questioning everyone's concern about the frequency of their horn, so I have another question:


How many times a year to you sound off with your horn?
Once a year when we get our Courtesy check...........
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Old 09-21-2015, 11:54 PM   #36
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...
Other than that, I hardly ever use it.
That sounds like a lot. Is this behavior after installing the Kahlenbergs? Are you loving their sound?
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Old 09-22-2015, 09:41 AM   #37
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Quote:
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Twice per trip coming and going from the marina...the Coasties are right there behind me, so I'm trying to gain some trawler cred. Then if I ever see a kayaker in the main river, I use it as I pass him just to scare the bejeebees out of him. Then when I see a ferry, I blow it as a greeting to all the passengers. If there are kids on the shore pumping their fists up and down, I will give them a long blow.

Other than that, I hardly ever use it.
Pretty much same for us, except for the part about the Coasties being behind us. Actually, we use the horn when leaving the marina due to a blind turn. When greeting other boats, pleasing the kids, or greeting the passengers on the tour boats, we use the air whistle (every tug needs a whistle). When we pass friends at marinas or approach a raft up, we usually have people begging us to blow the whistle. Only down side to the whistle is that it takes about five minutes to build up enough air pressure for it to work at full db.
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Old 09-22-2015, 11:38 AM   #38
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How many times a year to you sound off with your horn?
Last two-week trip in Maine, six days of fog, 5 hours a day underway, one prolonged blast every two minutes...

When there's any doubt in a crossing situation, one or two short blasts...

Occasionally, when it's clear the other boat is doing something stupid I don't want to take the blame for, five or more short and rapid blasts...

At low tide, when I can't see around the pier leaving the fuel dock, one prolonged blast...

With young children aboard, each gets one turn to blow the horn, and strike the bell...

Wait, you want a total for the year? That's gonna take a while.
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Old 09-22-2015, 12:36 PM   #39
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Naw, I wasn't really looking for an annual total. The first part of this thread made it sound (ok, bad pun there) like some of you were blowing the horn frequently.


I let kids blow my horn if they want. The grand kids love it, but that's about it. It gets used maybe a half dozen times a year. And when I use it, I never worry about if the frequency is correct. :-)
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Old 09-22-2015, 04:56 PM   #40
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Boat is equipped with original Buell Triplex horns. The Buell compressor was toast, so I inquired as to the cost of a replacement. Suffice it to say, Buell is mighty proud of their stuff. Wound up replacing it with a 12 v off-road tire comprssor that works great.

Unsure as to frequency and db rating - never able to locate real specs from Buell. On a functional basis - loud! Sounds like a freighter. Enough that I warn passengers (if possible) before sounding.

Use it infrequently. Let kids sound it when we're well away from traffic.

Aside from VSCs or a very occasional warning shot to inattentive traffic, it just sits there and looks pretty.
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