Train horns are a common communication and warning device. They have been in use since the mid 1900s, and are still used to this day. Their intended purpose is to blare a loud noise that will startle any people or animals that are on or near the tracks. Train horns have important functions, and the two pieces that make them that way are the diaphragm and the nozzle.

Train horns function by using compressed air, on a scale from 125-140 pounds per square inch. Oscillation is the flow of air throughout the horn, and helps to produce the sound that we hear. Air application to the horn results in a vibration and waves of air flow outwards creating a loud whistling noise. The shape, and size determine the frequency and pitch of the horns noise. When train horns were first invented they were operated by using a pull cord or lever. Currently train horns are used by simple pressing a button. Train horns are not used solely for trains, in recent times they have become popular for use on trucks, SUVs, and other large vehicles. Many people use them on water craft for warning signals as well. Some people even collect them for their sentimental value, and their beauty. Suburban areas have banned uses of train horns in certain areas. They tend to disrupt quiet areas and anger the local citizens.

Train horn kits can be easily purchased anywhere on the web, or through a dealer. Don’t expect to get one with a kids allowance though, these special horns can cost anywhere between $200-$1000+.

Setting up a train horn is a complicated process, and also requires a bit of precision. Importance is placed upon choosing the correct air compressor to generate the sound, and the right placement. A mistake in any of these categories can be lethal, and is highly dangerous. It is advisable to have an air compressor of 20 gallons or higher. This allows for a surplus, and keeps you from running back and forth to a gas station to fill it up.

Train horns, personal train horns, and professional horns, can encounter some function problems. Nearly all of these will occur within the diaphragm or nozzle. Sometimes a piece could crack, or something could get stuck in there. A train horn nozzle makes a great home for birds, which could also cause problems with your horn. To keep it in great condition, regular maintenance is necessary. Its important to polish and clean your train horn, and remove any debris from the inner nozzle and diaphragm. There are several companies that offer their repair services for a small fee. However, different horns require different maintenance due to the way they were produced. This is also based on age and rarity.

Closing Comments

All in all, train horns are a unique collectible item, and a quite functional one at that. In over 50 years they still have not gone out of style, and train conductors will probably continue to use them for some time.

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