CK5
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Who wants an air horn?

More nicknames for the lunch truck...:

"Salmonilla Silverado"
"Choke & Peuke Wagon"
"Diarrea Delivery"
"Prilosec Express"
"Fungus Amungus Food Truck"


I have some BIG air horns off a boat,and one off of an 18 wheeler..one night about 2 am I got real tired of listening to my neighbors mutt that had been yapping non-stop since dusk that night,so I got up,dressed,went out to the garage and fired up my air compressor,and hastily plumbed the two horns together with some rubber fuel line and hose claps,and put 125 PSI to them,pointed them right at their dog & house..almost immediately,their outside lights come on,so did all the neighbors within a 1/4 mile or so..I let them rip for about 15 minutes--when the cops pulled in,I shut them off,and I told them "sorry,I guess my alarm went off!....:D...the dog wasn't put outside for the rest of the week,too bad they started tying it up outside again..I might have to dig those horns out again...:rolleyes:...

I have the cheapie Fiamm air horns on my van,I used to love blowing them when a dog was about to step off the curb and cross the street in front of me--when you hit the horn,the dog would stop dead in its tracks and then leap about 3' off the ground,and land back on the sidewalk,all in less that one second!..looked like it got a high voltage shock!..
 
Most states do limit the output of a horn in an automobile. In Idaho there is no set DB limit, rather it is up to the officer who pulls you over.

The ticket is 45 bucks and is a non moving violation:D in Idaho at least

Trains horns are cool, I did up a set for a buddy off his OBA, 120 psi, using a 5 gallon tank, they were LOUD, testing resulted in said ticket
 
you can obviously mount them where ever you want but they're loudest if you put them under the truck pointed at the pavement :whistle:
 
REAL TRAIN HORNS do indeed need a good deal of PSI and CFM, in order for them to operate as designed. That being, the design dictates how much PSI and CFM. These (the ones Im am working on) will be designed to use less PSI and CFM, and thus will NOT be as loud as REAL TRAIN HORNS. But my goal is to duplicate the SOUND of a good set of P3 horns and be DaMn LoUd, so lets see how goes it! I hope to fiddle with my proto tomorrow! Ill keep the thread posted... (Video of course!)
 
The "Classic" train horn sound(s) I want to "duplicate"

Nathan K3L
http://www.dieselairhorns.com/sounds/K3L_Runby.mp3

Leslie S3
http://www.dieselairhorns.com/sounds/S-3J_PC.mp3

Leslie S3K
http://www.dieselairhorns.com/sounds/S3K_CSX559.mp3


Just FYI, I have to run the sound file though an audio spectrograph program and pull out the tone in frequency for each of the 3 bells you hear. All this "research" is time demanding and a bit tedious.

Once I have the specific frequency, then I have to try and duplicate it on the prototype, take measurements of the bell and then build duplicates to ship if there is any interest.

Wish me luck. :popcorn:
 
Sounds like a fun project! I have a 36" Grover I plan to put on my rig once I figure out all the plumbing. After playing with my horn at work on a 90psi system, I can't wait to hear what it sounds like at the recommended 120psi.
 

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