• 제목/요약/키워드: B747-400

검색결과 12건 처리시간 0.017초

B747-400 항공기의 Missed Approach 비행자료 분석 (The analysis of flight data of B747-400 aircraft with Missed Approach)

  • 신대원;박종혁;은희봉
    • 한국항공운항학회지
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    • 제11권2호
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    • pp.93-107
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    • 2003
  • This study is performed to secure the safety of civil aviation by establishing systematic analysis ability of Flight Data Recorder. Through this study, readouting UFDR(Universal Flight Data Recorder) to personal computer, flight data numerical analysis and regulations of Missed Approach. In the analysis, the flight data of B747-400 model aircraft with Missed Approach in San Francisco(KSFO) was selected.

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산업 - 경쟁기종 분석(2) - A380 vs B747-8

  • 한국항공우주산업진흥협회
    • 항공우주
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    • 통권108호
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    • pp.56-59
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    • 2010
  • 점보제트라는 애칭으로 더욱 친숙한 보잉 B747은 한 번에 무려 400명 이상을 수송할 수 있는 최초의 대형여객기였다. 그러나 에어버스의 야심작 A380이 등장하면서 상황이 뒤바뀌고 말았다. 영원히 깨지지 않을 것만 같았던 B747의 각종 기록을 A380이 보란 듯이 갈아 치워버렸기 때문이다. 그리고 지금, 명예회복을 위해 보잉이 준비한 야심작 B747-8이 A380과의 한판 승부를 준비하고 있다. 이 흥미진진한 경쟁구도를 살펴봤다.

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비행자료기록(FDR)에 의한 B747-400 항공기의 나리타-김포 비행 분석 (The analysis of NRT-SEL of the B747-400 Aircraft by FDR(Flight Data Recorder))

  • 신대원;이경철;이종희;최흥식;송병흠
    • 한국항공운항학회지
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    • 제9권2호
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    • pp.63-76
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    • 2001
  • The number of civil aviation aircraft registered in Korea has continuously increased. Accordingly the accidents accompanying loss of human or economic resources occurred repeatedly. But the analysis of flight data recorded in FDR was not done by ourselves in the accident investigation because of lack of analysis technology. Therefore, this study is performed to secure the safety of civil aviation by establishing systematic analysis ability of Flight Data Recorder. Through this study, download flight data to personal computer, editing interface file to convert from binary data to engineering data, three dimensional graphical analysis and numerical analysis are performed. For the analysis, the flight of B747-400 model aircraft between Narita(Japan) and Gimpo(Korea) was selected.

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측풍 착륙에 관한 실증적 연구;B747-400의 착륙 사례를 중심으로 (The Empirical Study on the Crosswind Landings)

  • 김칠영;문봉섭
    • 한국항공운항학회지
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    • 제12권2호
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    • pp.71-81
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    • 2004
  • There are four methods of landing of B747-400 during the crosswind condition. Pilots can choose either one of them. Those are: Sideslip/Wing low, De-Crab during Flare, Touchdown in Crab, Combining Crab and Sideslip. They decide to use one method by what they have learnt before. During the flight, the pilots choose the method, which depends on the weather forecast, and then try to land according to it. However, the weather condition always changes. In other words, the weather during planning and landing can be different, which can provide a difference between the previously expected situation and the actual one. Therefore, it is very important for the pilots to have the situation awareness. This study shows the direction and the prevention to avoid those errors, which are based on actual landing data of B747-400.

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비행자료기록(FDR)을 통한 순항비행 중의 항공기 비행요란 현상에 대한 연구 (The Study of the Turbulence Effect during In-cruise-flight of Aircraft by FDR(Flight Data Recorder))

  • 김일영;송병흠;신대원
    • 한국항공운항학회지
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    • 제10권1호
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    • pp.45-56
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    • 2002
  • This study is performed to analyze the turbulence effect by the analysis of the parameters related with flight data of FDR(Flight Data Recorder). In the analysis, the SSFDR(Solid State Flight Data Recorder) flight data of B747-400 and B767-300 model aircraft was selected. Through this study, we verified that turbulence interfere with flight safety because it is modifiable to flight situation and condition of aircraft.

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FDR을 이용한 목적지공항 변경 항공기의 비행자료 분석 (The Analysis of Flight Data of Aircraft with Whanges in Destination Airport In-flight by FDR(Flight Data Recorder))

  • 신대원;이종희;송병흠;이경철
    • 한국항공운항학회지
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    • 제10권1호
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    • pp.21-34
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    • 2002
  • This study is performed to secure the safety of civil aviation by establishing systematic analysis ability of Flight Data Recorder. Through this study, downloading SSFDR(Solid State Flight Data Recorder) to personal computer, editing interface file, flight data numerical analysis and regulations relayed to the aircraft with changes in destination airport in flight are performed. In the analysis, the flight data of B747-400 model aircraft between Los Angeles(KLAX) and Jeju(RKPC) was selected.

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비행 중 회항 시도 항공기의 비행자료 분석 (The analysis of flight data of aircraft with carry diversion into execution in -flight)

  • 이경철;이종희;송병흠;신대원
    • 한국항공운항학회지
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    • 제11권1호
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    • pp.67-80
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    • 2003
  • This study is performed to secure the safety of civil aviation by establishing systematic analysis ability of Flight Data Recorder. Through this study, downloading SSFDR(Solid State Flight Data Recorder) to personal computer, editing interface file, flight data numerical analysis and regulations relayed to the aircraft with carry diversion into execution are performed. In the analysis, the flight data of B747-400 model aircraft between Jeju(RKPC) and Gimpo(RKSS) was selected.

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B747-400 항공기 조종실내 전자파 노출에 관한 연구 (A Study on the exposure of electromagnetic waves in the B747-400 cockpit)

  • 강영훈;김칠영;최일규
    • 한국항공운항학회지
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    • 제8권1호
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    • pp.7-21
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    • 2000
  • Magnitudes of Magnetic field, Electronic field and Microwave was measured during the each stage of flight in the airline operation. The results was much higher than the safety standard and proved to be serious to the cockpit crews on their duty. We also identified that the magnitude of electronic field was much decreased by all three kinds of microwave protection equipments. We recommend that the cockpit crew have to wear the protection clothes to reduce the hazardous effects on their duty and the aircraft manufacturers have to consider the microwave-reduced cockpit in the initial stage of aircraft design.

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Evaluation of Fuel Consumption of B747-400 in Short-range Flight with Catapult Assist

  • Lee, Changhyeok;Park, Hyunchul
    • 항공우주시스템공학회지
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    • 제14권4호
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    • pp.40-46
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    • 2020
  • Recently, the aviation industry has sought to reduce its carbon usage in aircraft operations. Specifically, the industry is proceeding with the development of ultra-large turbofan engines and the development of hybrid electric engines to reduce the fuel consumption of aircraft. In one case, Airbus is developing as its future goal an aircraft with a short take-off distance that uses a catapult. In this study, when a b747-400 aircraft with two of the four engines removed was tested using a catapult, its fuel consumption was compared with that of the original aircraft. Fuel consumption was calculated using the mass flow consumption formula. Further, the aircraft L/D ratio caused by engine removal was interpreted using the CFD Tool, Ansys Fluent. The results showed that the lift ratio was improved by about 7% and that the fuel efficiency was improved by about 14%.

유도성 아이리스를 이용한 NRD 가이드 필터의 설계 및 제작 (Design and Fabrication of NRD Guide Filter using Inductive Iris)

  • 김영수;류원렬;최형동;유영근
    • 한국전자파학회논문지
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    • 제13권8호
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    • pp.741-747
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    • 2002
  • 본 논문에서는 WRD 가이드를 이용하여 38 MHz 밀리미터파 대역의 대역통과 필터를 설계하고, 실제 제작하여 그 측정 결과를 비교 분석하였다. 기존의 공극 결합된 NRD 가이드 필터의 경우, NRD 가이드로 사용되는 PTFE 선로의 정밀 가공 및 공진기 간의 정위치가 어려워 대량생산에 불리한 단점이 있었으나, 본 연구에서는 각각의 유전체 공진기를 Inductive Iris로 결합, 하나의 선로상에 공진기를 제작할 수 있으므로 가공 및 조립성이 뛰어나 양산에 적합한 구조를 갖는다. 설계 한 필터는 측정 결과, 통과대역 38.66 - 39.06 MHz로 400 MHz 대역폭을 가지며, 대역내 삽입손실 1.4 dB, 반사손실 -18 dB 이하의 우수한 특성을 갖는다.