• Title, Summary, Keyword: 비행

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미 해군의 해상초계기 전술지원소 체계 현대화 사업 (I)

  • Kim, Yeong-Gil
    • Defense and Technology
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    • no.2
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    • pp.42-49
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    • 1994
  • 해상초계기 전술지원소의 기능은 해상초계기의 비행전, 비행중, 비행후 임무지원을 위한 전술전사와 통신 기능이다. 비행전 임무지원은 승무원 브리핑 및 임무수행중인 항공기 상황전시를, 비행중 임무지원은 임무항공기 상황전시 및 데이터링크 통신을, 비행후 임무지원은 임무재현, 음향 및 비음향 기록자료 분석을 포함한다.

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A Study on Performance Simulation of Propulsion System for KT-1 (KT-1 기본 훈련기의 추진기관 비행성능 해석연구)

  • 오성환;장현수;기덕종
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • pp.225-229
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    • 2003
  • The exact performance simulation of propulsion system is a key element in the prediction of the aircraft performance. The specification performance analysis using the installed loss of KT-1 showed a large difference with the engine performance measured during the flight tests. This indicates that a method to estimate the more exact performance is needed. The study on the performance simulation with performance map correction along the engine operating line shows the good consistent results through all the flight conditions and engine conditions. The correction factors of the map were resulted from the comparative analysis between the flight test and the simulation of installed engine performance.

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A Study on ADS-33E with Application to the Assessment of Handling Quality for Unmanned Rotorcraft (회전익 무인항공기의 비행안정성 규명을 위한ADS-33E 적용기법 연구)

  • Jeong, Hwan-Ho;Suk, Jin-Young;Kim, Byoung-Su;Lee, Sang-Kee
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.40 no.3
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    • pp.243-250
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    • 2012
  • In this paper, a systematic consequence of evaluation method, procedure, and flight data analysis is investigated for application of ADS-33E-PRF to UAV. And it is applied to unmanned rotorcraft for evaluation. CNUHELI-020, which is developed in Chungnam National University, is used for assessment of handling quality: decoupled longitudinal and lateral/directional model were used to assess handling qualities. Evaluation flight maneuvers are categorized as hover/low-speed requirements, small-amplitude attitude change, and moderate-amplitude attitude change requirements.

A Study on loggings of flight time(Focusing on the record of instrument flight) (비행시간 산정에 관한 연구(계기비행 기록을 중심으로))

  • Hwang, Ho-Won;Noh, Yo-Sup
    • The Korean Journal of Air & Space Law and Policy
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    • v.20 no.2
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    • pp.253-276
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    • 2005
  • A pilot logbook is an essential data for proving pilot's flight experience. the reason for maintaining this information is to fulfill the requirement for pilot certificates, manage internationally shared career placement. this study focuses on the instrument flight related items among other flight time items which are included in a pilot logbook. By comparing the way of flight time logging among Korean Aviation Law, Federal Aviation Regulation and Joint Aviation Requirements, this study concludes intensively how to define items for flight time, to amend the definition and to apply the policy in Korea with respect to the pilot logbook.

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auto-pilot flight for UAVs using public Data (공공 데이터를 이용한 UAV 자동경로비행)

  • Park, KyungSeok;Kim, MinJun;Oyindamola, Owolabi Ganiyat;LIU, HUIYU;Kim, SungHo
    • Proceedings of the Korea Information Processing Society Conference
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    • pp.242-245
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    • 2019
  • 움직이는 UAV는 많은 위치에너지와 운동에너지를 가지므로 지상으로 추락하는 경우 많은 충격량을 가질 수 있다. 이는 인명피해로 연결될 수 있기 때문에 본 논문에서는 UAV 비행경로 상의 인구밀집지역을 위험구역으로 정의하였다. 기존의 UAV 경로비행은 사용자에 의해 미리 설정된 경로만을 운행하는 수동적인 형태였다. 일부 UAV는 경로비행 중 장애물을 회피하는 시스템 등 안전기능을 포함하고 있지만, 비행환경변화에 대응하기에는 부족하다. UAV 경로비행에 공공 데이터를 활용할 경우, 위험구역을 검출하고 회피비행을 수행할 수 있어서 비행환경변화에 대한 대응이 향상될 수 있다. 따라서 본 논문에서는 수집된 데이터를 활용하여 위험구역을 회피하는 최적경로 비행 방안을 제안한다. 실험결과, 제안하는 자동경로비행에서 목적지와 목적지에 따른 경로를 지정할 경우, 위험지역을 스스로 판단하여 최적 우회경로로 비행하는 것을 확인하였다. 추후 회피방안에 따라 비행하여 획득하는 영상의 질적 만족도를 높일 수 있는 방안을 연구할 예정이다.

자동 비행 조종 장치 기술 동향

  • 송찬호
    • ICROS
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    • v.3 no.2
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    • pp.14-19
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    • 1997
  • 현존하는 비행체는 항공기에서 유도탄에 이르기까지 실로 그 종류가 다양하지만 대부분 비행체 운동 제어라는 공통된 기능과 특성을 갖는 자동비행조종 장치가 장착되어 있다. 본 고에서는 이러한 자동비행조종장치의 기술동향을 주로 Software 관점에서 살펴보고자 한다.

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A Study on the Flight Test of Airplane Changgong-91 for Korea MOT Type Certification (교통부 형식 증명 획득을 위한 창공-91 비행 시험 수행에 관한 연구)

  • Choi, Byoung-Chul;Lee, Jung-Mo
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.1
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    • pp.81-93
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    • 1993
  • 창공-91의 비행 시험의 목적은 성능 측정과 비행 특성의 확인이며 교통부의 기준은 주로 비행기의 운항에 따르는 안정성에 주안점을 두고 있다. 비행 시험으로 실속 속도와 이착륙 성능 그리고 상승 성능을 측정하여 비행 교범에 수록하였고, 안정성과 조종성의 적절함을 판단하였다. 창공-91 A2기의 비행 시험에 소요된 비행 시간은 81. 5 시간이다. (창공-91 $A_1$기 : 52.8시간)

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Study on height restriction with respect to zone beyond the imaginary surface area under the Military Aviation Law (비행안전구역 밖에서의 고도제한)

  • Ha, Hong-Young;Kim, Hae-Ma-Joong;Hong, Sang-Beom
    • The Korean Journal of Air & Space Law and Policy
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    • v.18
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    • pp.363-384
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    • 2003
  • The Military Airbase Law has designated imaginary surface, restricting the height of structure above the imaginary surface. The purpose of establishment of imaginary surface is to promote safety of aircraft operation. However, given the fact that the land is limited, the Military Airbase Law does not set up outer horizontal surface such that the reduced imaginary surface would undermine the safety of aircraft operations with respect to IFR (Instrument Flight Rules) procedures. The fact that some areas which IFR procedures require are not designated as imaginary surface results in no imposition of height restriction on such area. With regard to aviation safety, this article deals with issue of height restriction on area which is beyond the imaginary surface area. This article also examines the establishment of the imaginary surface in the Military Airbase Law, and conducts case study of imaginary surface systems in other country. Based upon this discussion, the current problems posed in the Military Airbase Law will be discussed. To resolve these problems, it is necessary to establish height restriction zone beyond the current imaginary surface area. The provisions of ICAO, FAA and other counties in relation with this issue are referred as well. As a result, many different proposals are suggested, and it is concluded as the most effective proposal that, in certain zone beyond the imaginary surface area, an aeronautic study should be required for the purpose of ensuring aviation safety before a permit of construction higher than prescribed height is issued.

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Characteristics of Propulsion System at the High Altitude Flight Test of 50m-long Airship (50m급 비행선의 고고도 비행시험에서 추진시스템 특성)

  • Jung Yong-Wun;Yang Soo-Seok;Kim Dong-Min
    • Proceedings of the Korean Society of Propulsion Engineers Conference
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    • pp.41-44
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    • 2006
  • The propulsion system of VIA-50A airship consists of engine, generator, inverter, motor and propeller. The motor and propeller was designed that can be tilted to $120^{\circ}$ for thrust vector control. When the flight test was performed, various condition data of the airship were obtained by wireless telecommunication and analyzed in real-time. In this paper, we presented flight test results of propulsion system. Considering the designed requirement and normal range, we verified that all constituent part was operated in normal condition during the high altitude flight test.

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Dynamic Stability Flight Test for Small Aircraft using Modified Maximum Likelihood Estimation (최대공산 추정법을 이용한 항공기 동안정성 비행시험)

  • Lee, Sang-Jong;Park, Jeong-Ho;Chang, Jae-Won;Park, Il-Kyung;Kim, Keun-Taek;Seong, Kie-Jeong
    • Aerospace Engineering and Technology
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    • v.9 no.2
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    • pp.105-115
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    • 2010
  • This technical paper describes and summarizes the flight test results for the longitudinal and lateal-directional dynamic stability characteristics. The target aircraft is the 4-seat carnard type aircraft, FireFly, which has been developed by KARI. Airborne sensors and real-time telemetry system are constructed to obtain the flight test data. The dynamic stability characteristics should be analyzed and tested by estimaitng the aerodynamic parameters in the dymaic equations of motion. The maximum likelihood estimation technique has been applied to the flight data from chirp, 3211, and doublet control inputs.