Abstract

한국형 기동헬기(KUH) 내부통화장치는 VHF-FM 무전기, U/VHF-AM 무전기와 함께 통신계통을 구성하는 장비로서, 조종사의 임무 수행에 핵심적인 장비이다. 내부통화장치는 조종사 및 승무원에게 내부통화 기능, 외부통화 기능, 모드 조정 및 볼륨 조절 기능, 음성경고 기능을 가지고 있다. 본 논문에서는 내부통화장치의 비행시험 지적사항을 발생원인 별로 분류하고, 각 지적사항에 대한 고장탐구 수행과정을 정리하였다. 또한, 고장탐구 내용을 바탕으로 도출한 설계개선 사항과 개선사항에 대한 비행시험 검증 결과를 함께 기술하였다. Intercom System(ICS) of Korean Utility Helicopter(KUH) is an essential equipment for pilot to perform flight mission and it consists of communication system of KUH with VHF-FM radio set and U/VHF-AM radio set. It provides pilots and crews with internal communication, external communication and audible alarm. It has function of controlling volume and selecting two communication modes, normal mode and backup mode. This paper summarizes pilot comments in flight test which are classified by cause of occurrence and the troubleshooting process about each comment. It also describes design improvements which was derived from troubleshooting and suggests verification results of flight test.

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