The Loud Hailer system is a public address system for communications between the flight crew and a person on the ground. This system is intended to deliver amplified messages and sounds outside the aircraft through the helicopter PA system. This system consists of two major components: Controller (A790 Technisonic) and Amplified Speaker System (PSAIR22+ Powersonix). The controller is installed in the cockpits’ center console and interfaced with the existing intercom system. The speaker assembly is installed in the left wheel well, forward fairing area with a 50 degree downward angle.

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