Do Airplanes Have Horns?

Question

I'm curious, do airplanes actually have horns, and if so, what are they used for?

Answer 1

Yes, airplanes do have horns, but they are used differently than car horns. Airplane horns are primarily used on the ground, not during flight. Engineers often use the horn when performing maintenance in the cockpit, tooting it to get the attention of workers on the ground. The horn is a button among many other commands on the control panel.

Comments

If I heard that plane horn … I’d be looking for where’s the train?

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After 40 years in aviation I have never heard a ground call horn that sounded like a steam locomotive!

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In 28 years as a aircraft line maintenance engineer I have never heard a ground call horn sound like that. The other horns are for a APU fire and Avionics cooling failure.

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On military cargo aircraft, the horn is used in emergencies to let the passengers know to evacuate the aircraft.

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Plane horn goes off, guy next to the airport: oh, I think my train is here.

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I have never heard a ground-crew call horn that sounds like the " Staten Island Ferry"!!