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Old 09 March 2007, 17:34   #11
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So its quite loud then.

Whats the exponential drop over a reasonable distance.

This might be my next project.
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Old 09 March 2007, 17:40   #12
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Not that easy to say, to many variables i.e.
Relative humidity, Frequency, Air pressure & Temperature.
I would say for a fog horn it would be no different to some of the air canister horns available.

Brian
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Old 09 March 2007, 18:30   #13
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Ashby,

So your saying its as loud as an air canister fog horn.

If so thats good enough for me.
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Old 09 March 2007, 19:08   #14
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So my horn has provoked some inetrest today, her indoors will be pleased....
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Old 11 March 2007, 11:10   #15
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http://www.airhorns.co.uk/product.as...416&deptid=231

just bought one for the Humber - looks good!
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Old 11 March 2007, 11:18   #16
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When I installed the horn on my rib, I wanted it to be as loud as one of those hendheld air types, so ended up popping into motorworld, and for something like £12, got myself a proper job which fits perfectly on the a-frame.


See left of pic for horn - ignore the zip ties on right with loose wires - that's the bullet cam.

I ran a new 20amp cable for the thing since the compressor is a bit heavy on current, and pointed the funnel downwards to avoid salt going straight into the front and wrecking it. The motor sits inside an ip rated box thus completely protecting it from the elements.
The box did come with 2 horns, but 2 would have been slightly OTT I thought

-Alex
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