In aviation safety, what is the role of a loudhailer?

A loudhailer, also known as a megaphone, is primarily used to amplify a person's voice in situations where clear communication is essential, especially during emergencies. Its role is to direct instructions to passengers or crew in loud or chaotic environments, ensuring that critical information is conveyed effectively and efficiently.

In the context of an emergency, the loudhailer can help ensure that all individuals can hear instructions clearly, facilitating swift and organized actions that are crucial for safety. This use is vital in cases where other forms of communication, like intercom systems, may be compromised or ineffective due to noise or equipment failure.

While there are other communication tools in aviation, the unique function of a loudhailer in emergency scenarios focuses on its ability to provide clear directives to ensure passenger safety.