• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.44 no.10
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• pp.871-876
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• 2016

Abnormal odor similar with burning smell often appears at the cockpit in the beginning of ultra-sonic aircraft without air filter due to the heating of production materials remained at the bleed air duct. Sources of the odor should be removed by burn-in test before test flight in order to prevent pilot confuses order with emergency such as fire of engine. However, the present method cannot prevent abnormal odor completely at the high altitude flight because maximum temperature of flight is higher than it of burn-in-test. This paper suggests burn-in test improved based on the analysis of thermal conditions of high altitude flight. It is verified that the existing burn-in test cannot cover thermal conditions of high altitude flight due to the discontinuous flow control, high change rate of temperature per unit time and difference between limit temperature of condenser and turbine. In order to overcome the limitations of current methods, the new burn-in test with continuous flow control are suggested. The continuous flow control are achieved by ram air inlet control. The effect of suggested method are verified by ground tests and flight tests. The results show the bleed air temperature can cover the temperature of high altitude flight and prevent abnormal odor at the flight test.

• 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.

• Journal of Advanced Navigation Technology
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• v.21 no.6
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• pp.549-553
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• 2017

The KASS development project, a Korean SBAS launched in 2014, is under development for the APV-1 Class SOL service in 2022. Flight tests should be conducted to analyze development requirements and performance requirements for KASS R & D. However, since the evaluation items have not yet been presented in Korea, FAA and ICAO regulations should be analyzed so that evaluation items for flight testing for KASS development should be structured and comply with international standards. In this paper, we analyze the procedure verification of SBAS for flight test using satellite navigation system.

• Journal of Advanced Navigation Technology
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• v.19 no.1
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• pp.1-6
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• 2015

Due to the rapid increase in air traffic worldwide, ICAO has replaced the existing navigation equipment with equipment based on satellite navigation. As a part of that work, ICAO was planning to replace conventional takeoff and landing service using ILS with GBAS. Unlike ILS, GBAS which uses precision approach service inducing aircraft to airport and satellite based augmentation system providing precise position information service surrounding airport is capable of providing a required performance by only a system, regardless of the number of systems, and has an advantage that it is possible curved approach. In this paper, fuel reduction of ILS approach procedures and GBAS curved approach procedures is estimated and determined by flight test in Taean Airport.

• Proceedings of the Korean Society of Propulsion Engineers Conference
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• 2000.11a
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• pp.9-9
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• 2000

우주추진기관의 모든 부품은 생산 시 규정된 절차를 거쳐서 작동의 이상유무를 확인하는 시험을 거친다. 우주추진기관은 특별한 경우를 제외하고는 실 비행 상태에서 시험하기가 어렵거나 불편하기 때문에 지상에서 시험을 수행하여 성능 및 안정성 등을 확인하게 된다. 지상연소시험을 수행하기 위해서는 비행용 엔진을 대상으로 엔진 메니폴드에 비행 시와 같은 조건의 추진제가 공급될 수 있게 해줘야 한다. 기존에 시험장이 이미 구축되어 있는 경우 엔진의 운용조건에 맞추어 엔진에 맞게 엔진과 시험설비 연결부분이 수정되게 된다.(중략)

• Journal of the Korean Society for Aviation and Aeronautics
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• v.25 no.2
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• pp.69-76
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• 2017

고흥 항공센터에 2019년(예정) 신규 활주로가 설치되고, 비행시험 관련 시설, 장비들을 단계적으로 구축하여 국가 비행종합성능시험장으로 운영할 예정이다. 국가 비행종합시험장은 공항이 아닌 비행장으로 운영할 예정이다. 비행장에는 특별히 정하는 운영규정이 없는 실정이다. 그러나 특수한 목적으로 신설되는 국가 비행종합성능시험장을 보다 안전하고 효율적으로 운영할 수 있도록 관련법규와 국내 공항 및 비행장 운영관리 현황 조사, 해외의 비행장 운영관련 법규와 운영실태 조사, 해외 항공 전문가 자문 및 출장을 통하여 향후 국내 관련법규 제정 및 비행종합시험장 운영 시 활용할 수 있도록 지침을 제시하였다.

• Current Industrial and Technological Trends in Aerospace
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• v.3 no.1
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• pp.127-133
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• 2005

• The Journal of Aerospace Industry
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• s.44
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• pp.3-14
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• 1997

• Journal of the Korean Society for Aviation and Aeronautics
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• v.1
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• pp.143-149
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• 1993

• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.3
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• pp.263-269
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• 2014

Flight test data visualization functions can improve an understanding of flight test results, test procedures, and the performance of a flight vehicle after flight tests. FlyingView was developed for researchers to analyse flight test data in a 3D virtual environment. It also can display X-Y plots using flight test data. It was developed and applied to flight tests of an air-to-ground weapon system of ADD. This paper describes the capabilities of FlyingView.