• Title/Summary/Keyword: Flight operation

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경항공기를 이용한 KSLV-I 전자탑재장비 비행시험 (The Flight Test of the KSLV-I Electronic Systems Using a Light Airplane)

  • 지기만;이수진;정의승
    • 항공우주기술
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    • 제7권1호
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    • pp.142-150
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    • 2008
  • KSLV-I 발사체에 탑재되는 원격측정시스템, 추적시스템, 비행종단시템, GPS, 관성항법유도시스템의 개별적인 성능과 고홍우주센터 및 제주추적 소에 설치된 지상장비와의 연계성능을 확인하기 위하여 항공기를 이용한 비행시험이 요구된다. 시험에 적용할 탑재장비의 선정, 하니스, 운용방법, 안테나 부착방법 등의 면밀한 계획과 분석을 통해 시험의 효율성이 향상되기 때문에 KSLV-I의 통신환경과 비행프로파일 둥이 비행시험에 최대한 정확하게 고려되어야 한다. 본 논문에서는 KSLV-I 전자탑재장비의 목록과 규격, 비행시험용 랙과 하니스, 항공기 제원, 비행궤적 둥 효과적인 비행시험을 위해 준비 및 분석되어야 하는 전반적인 사항이 제시된다.

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운항품질보증프로그램 이벤트 유형 및 심각도 우선순위 조사 (Event Type and Severity Priority Survey of Airline Flight Operation Quality Assurance(FOQA) Program)

  • 김진호;이상기;문우춘;정현진
    • 한국항공운항학회지
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    • 제29권3호
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    • pp.84-99
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    • 2021
  • Flight data from operational quality assurance programs plays a significant role in identifying factors as one of the key data in the development of proactive and preventive aviation safety management technologies based on data. The list of events in the flight quality assurance program recommended by the FAA differs from the list set and managed by airlines themselves and is based on the frequency of occurrence rather than the severity of individual events. In this work, we compared the list of FOQA events presented by the FAA with the list of some domestic airlines. We also investigate the severity priorities of events for airline captains and conduct research on how to improve the operation of the operational quality assurance program.

객체기반 예약 스케줄링기법 (The object-based reservation scheduling techniques)

  • 김진봉
    • 한국컴퓨터산업학회논문지
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    • 제8권2호
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    • pp.89-96
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    • 2007
  • 객체기반 예약스케줄링 기법은 제약만족문제(CSP; Constraint Satisfaction Problem)와 객체지향개념(Object-Oriented Concepts)을 기반으로 승무원 객체들이 갖고 있는 사건들을 주어진 제약들에 만족하도록 목표인 운항스케줄 보드에 배정하는 기법이다. 본 논문에서는 객체기반 예약스케줄링기법을 항공운항 스케줄에 적용하여 승무원(운항승무원, 객실승무원)들의 운항 스케줄 만족도를 향상시키고, 승무원들에 대한 인력관리상의 문제점들을 해결하고자 하였다 특히, 승무원들의 운항스케줄에 대한 만족도를 향상시키기 위해서 전체승무원 선호도보드를 이용하였다. 승무원들의 스케줄 우선순위에 따라서 자원(타임 슬롯)을 배정하고, 자원에 대한 승무원들의 선호도 차이를 가질 수 있게 하였다. 보드에 대한 정의와 모든 사건들에 대한 정보를 전역제약으로 사용하고, 승무원들이 가지는 보드의 타임 슬롯들에 대한 선호도를 지역 제약으로 사용하였다. 또한 실제로 항공운항 스케줄링을 모의실험해서 승무원들의 운항 스케줄 만족도를 살펴보았다.

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비대면 강의 상황에서 대학생들의 학습실재감, 학습 몰입 및 학습 환경에 대한 인식 연구 - 항공운항학과 학생들을 중심으로 - (A Research on the University Students's Perception on the Learning Presence, Learning Immersion, and Learning Environment under the Non-face-to-face Lecture Circumstance - Focusing on Students from Department of Flight Operation -)

  • 이수정;최진국
    • 한국항공운항학회지
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    • 제30권3호
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    • pp.1-9
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    • 2022
  • In this study we conducted a research regarding the effect on learning immersion and perception of the learning environment by learning presence of students in the Department of aeronautical science and flight operation in the context of non-face-to-face lectures caused by COVID-19. The relationship between learning presence (cognitive presence, emotional presence, and social presence) and learning commitment showed a high correlation. The learning immersion was also found to increase when cognitive presence, emotional presence, and social presence increased in multiple regression analysis to find out the effects of cognitive presence, emotional presence, and social presence, which are sub-factors of learning presence. The advantage of non-face-to-face classes was to be the ease of learning, and the disadvantage of non-face-to-face classes was the most difficulty of the learning process in the content analysis of the non-face-to-face class environment.

Designing of Dynamic Sensor Networks based on Meter-range Swarming Flight Type Air Nodes

  • Kang, Chul-Gyu;Kim, Dae-Hwan
    • Journal of information and communication convergence engineering
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    • 제9권6호
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    • pp.625-628
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    • 2011
  • Dynamic sensor network(DSN) technology which is based on swarming flight type air node offers analyzed and acquired information on target data gathered by air nodes in rotation flight or 3 dimension array flight. Efficient operation of dynamic sensor network based on air node is possible when problems of processing time, data transmission reliability, power consumption and intermittent connectivity are solved. Delay tolerant network (DTN) can be a desirable alternative to solve those problems. DTN using store-and-forward message switching technology is a solution to intermittent network connectivity, long and variable delay time, asymmetric data rates, and high error rates. However, all processes are performed at the bundle layer, so high power consumption, long processing time, and repeated reliability technique occur. DSN based on swarming flight type air node need to adopt store-and-forward message switching technique of DTN, the cancelation scheme of repeated reliability technique, fast processing time with simplified layer composition.

비행시험을 통한 엔진의 혼합기레버 위치 설정에 관한 연구 (A Study on Determination for Mixture Lever's Position by Flight Test)

  • 김진곤;김칠영;이정모;이정훈
    • 한국항공운항학회지
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    • 제3권1호
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    • pp.37-47
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    • 1995
  • It is very important to determine the performance and operating envelope of engine for aircraft's flight. The basic performance is provided by manufacturer, but installed engine's operating envelop is only determined by flight test. First, this study was measured cylinder head temperature(CHT), exhaust gas temperature(EGT) and oil temperature. At pre-determined altitude and power rate, these temperatures were measured by change of mixture ratio and mixture ratio condition for economic operation and max. power were found. And secondly, with the measured temperatures, possible positions of mixture lever were determined by flight test for stable flight Chang-91 and Lycoming IO-360-A series four cylinders engine with 200 hp was used for this study.

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민간항공사의 운항승무원에 영향을 주는 위협관리에 관한 연구 (A study of the threats towards the flight crew)

  • 최진국;김칠영
    • 한국항공운항학회지
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    • 제18권2호
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    • pp.54-59
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    • 2010
  • The flight deck crew must manage complexity during daily flight operations. The Airline may obtain data regarding threats and errors through LOSA(Line Operations Safety Audits) on normal flights as predictive safety tool in Safety Management System of the Airline to actively improve the systems such as SOP(Standard Operation Procedure), training, evaluation and the TEM(Threat and Error Management) for the flight deck crew. The flight deck crew make errors when they fail managing threats. The crew mismanage around ten percent of threats and commit errors. The major mismanaged threats are aircraft malfunction, ATC(Air Traffic Communication), and wether threats. The effective countermeasures of TEM for manageing threats are leadership, workload management, monitor & cross check, Vigilance, communication environment and cooperation of the crew. It is important that organizations must monitor for the hazards of threats and improve system for the safer TEM environments.

항공사 객실승무원의 변혁적 리더십이 직무만족 및 조직몰입과 조직충성도에 미치는 영향 (A Study of the Effect of Flight Attendants' Transformational Leadership on Their Job Satisfaction and Loyalty)

  • 박인섭;홍영식;박지영
    • 한국항공운항학회:학술대회논문집
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    • 한국항공운항학회 2015년도 추계학술대회
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    • pp.212-223
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    • 2015
  • This paper tries to provide and apply implications to line operation based on the analysis results by using empirical research methods. This paper has focused on the relationship among transformational leadership, job satisfaction, job absorption and loyalty. Following previous researches, the variables and hypothesis were defined and quantitatively measured in my research in order to analyze the effect of flight attendants' transformational leadership on their job satisfaction and loyalty. The managerial implications could be suggested as follows. Job absorption should be increased to improve flight attendants' loyalty to organization by increasing job satisfaction. Flight attendants' job satisfaction is related to transformational leadership which could be classified into Charisma, inspirational motivation and intellectual stimulus. Therefore flight attendants could be motivated by airline's controlling their charisma, inspirational motivation and intellectual stimulus. Solutions below are suggested to increase job satisfaction, absorption and loyalty.

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스마트 무인기 비행제어 상태/모드 분석 (States and Modes Analysis for Flight Control of Smart UAV)

  • 오수훈
    • 시스템엔지니어링학술지
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    • 제1권2호
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    • pp.43-48
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    • 2005
  • This paper describes the results of applying States and Modes Analysis, one of the requirements analysis techniques, to the development requirements of flight control software for Smart UAV. State/mode table enabled us to investigate various operation and design concepts, and as a result essential requirements for flight control software were established without omitting necessary requirements. Through the use of scenario-specific state transition diagrams, dynamic behaviours and control/response interfaces between each state and mode could been clearly identified, which made it possible to establish requirements related to dynamic behaviours of states and modes which are essential to the design of flight control software.

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Flight Simulation Training Device Operating Standards for MPL Training Programs in South Korea

  • Lee, Jang Ryong;Kwon, Moonjin;Kwon, Hanjoon
    • 한국항공운항학회지
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    • 제29권3호
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    • pp.117-121
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    • 2021
  • The Multi-crew Pilot License (MPL) is a new pilot qualification introduced by ICAO to train co-pilots for transport aircraft based on efficient and stable competency to respond to changes in the operating environment and technology. ICAO and the European Union Aviation Safety Agency (EASA) require a minimum flight of 240 hours for MPL qualification training, and allow the use of flight simulation training devices (FSTDs) for most of the training, specifying the performance requirements for FSTDs. As South Korea is also preparing for the operation of the MPL training program, it is essential to establish the operating standards for FSTDs required for MPL training. This study aims to identify the international standards for FSTDs related to MPL training, and to compare them with the current operating standards for FSTDs in South Korea for presenting a standard (draft) that can be used when introducing domestic MPL training programs in the future.