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Flight Test Items of Metal Brake Pad for Part 25 Aircraft

Part 25급 항공기용 금속계 제동패드의 비행시험 항목

  • Minji Kim (Research Institute of Intelligent Manufacturing & Materials Technology, Korea Institute of Industrial Technology) ;
  • Kyung-taek Kim (Research Institute of Intelligent Manufacturing & Materials Technology, Korea Institute of Industrial Technology)
  • 김민지 (한국생산기술연구원 지능화뿌리기술연구소) ;
  • 김경택 (한국생산기술연구원 지능화뿌리기술연구소)
  • Received : 2024.09.27
  • Accepted : 2024.10.29
  • Published : 2024.10.31

Abstract

In this study, the flight test measurement data and flight test items for metal-based brake pads for transport aircraft were derived through the analysis of Korea and the U.S. aviation-related regulations, technical standards and airworthiness standards. During the flight test, the measurement items should be measured at all times, such as aircraft altitude, speed, aircraft condition, wind direction, wind speed, and air-temperature. The flight test items of the brake pad should be quantitatively evaluated for stopping performance during landing, fuse plug integrity, stopping performance at reject take-off situations, anti-skid compatibility during landing and parking brake capability. Additionally, qualitative evaluation of the flight test pilot's aircraft steering characteristics under each test condition is required. The identification of risk factors for each test item and measures to mitigate risk factors must be approved in advance before the flight test, and the risk factors must be reevaluated to maintain suitability for the flight test during the flight test, and the results must be documented.

본 연구에서는 우리나라 및 미국의 항공관련 법령 및 항공기 기술기준과 기술표준품 표준서의 분석을 통하여 수송급 항공기용 금속계 제동패드의 비행시험을 위한 계측항목 및 비행시험 항목을 도출하였다. 비행시험 시 계측항목은 항공기 고도 및 속도와 항공기 상태 등 항공기 및 조종실에서 출력되는 항목과 풍향 및 풍속과 기온 등 지상에서 출력되는 항목을 상시 계측하여야 한다. 제동패드의 비행시험 항목은 착륙 시 정지성능, 퓨즈 플러그 작동 검증, 이륙중지 상황에서의 정지 성능, 미끄럼 방지 착륙 적합성 및 주차 제동성능 등을 정량적으로 평가하여야 하며, 각 시험조건에서 비행시험 조종사의 항공기 조향특성에 대한 정성적 평가가 필요하다. 비행시험 전에 각 시험항목별 위험요소의 식별과 위험요소의 완화방안을 사전에 승인받아야하며, 비행시험 중에도 비행시험의 적합성 유지를 위한 위험요소의 재평가를 수행하고 그 결과를 문서화하여야 한다.

Keywords

Acknowledgement

본 연구는 국토교통부 항공기 개조인증기술개발 사업(과제번호; 21AIRC-C163454-01)의 지원에 의하여 이루어진 연구로서 관계부처에 감사드립니다.

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