What is the primary purpose of the Loudhailer?

The primary purpose of the Loudhailer is to facilitate communication outside the aircraft after an emergency evacuation. This device is crucial in situations where clear communication is necessary to ensure passenger safety and coordination in response to an emergency. It allows crew members to effectively convey instructions or information to evacuated passengers and potentially coordinate efforts with emergency services, enhancing overall safety during critical situations. The Loudhailer serves as an essential tool in ensuring that messages are heard clearly in potentially chaotic environments that may occur after an evacuation.

In contrast, the other options serve different roles that do not align with the primary function of the Loudhailer. For instance, while emergency oxygen supply is vital for maintaining crew and passenger safety during decompression events, it is not related to communication. Communication during maintenance is typically handled through internal systems designed for that context, rather than using a Loudhailer. Lastly, internal announcements are generally made using the aircraft’s public address or intercom systems, and while a Loudhailer can be useful if those fail, it does not encompass the primary function of the device.