• Journal of the Korean Society for Aeronautical & Space Sciences
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• v.42 no.2
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• pp.173-180
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• 2014

In this paper, the instrument flight certification process and flight test results of Korean Utility Helicopter (KUH) are presented. For the instrument flight certification, the suitability of installed equipments and instruments have been reviewed and verified by ground and flight tests. Next, static and dynamic stability test are conducted in accordance with FAR-29 Appendix B. The static stability is determined by the change of speed and attitude according to control inputs. The dynamic stability is evaluated by how quickly the response of the helicopter due to long and short period control inputs are decreased. The pilot workload evaluation are also carried out by simulated IMC flight tests. This paper presents the workload assessment results when some failures are occurred at cockpit instruments, engine or flight control systems as well as the normal situation. After the simulated IMC flight test is completed, actual instrument flight test are conducted in a real IMC environment according to the air traffic controls.

• Proceedings of the ESK Conference
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• 1995.10a
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• pp.164-171
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• 1995

본 연구의 목적은 설문조사기법을 통하여 경찰의 휴대용 장비의 사용실태를 조사하여 경찰의 작업부하 (work stress)를 가중시키는 장비와 설계요소를 규명하는데 있다. 또한 인간공학적 측면에서의 장비분석을 통 하여 경찰 임무 수행능력의 제고와 경찰의 사기전작에 기여할 수 있는 사용자 중심의 휴대용 장비개발의 필요성 을 제시하였다. 현대사회에 있어서 경찰은 타 직종에 비해 그 작업부하(work sterss)의 수준이 매우 높으며, 더 우기 다양한 원인에 의한 재해 가능성 또한 커서 위험한 직업으로 평가 된다. 이러한 이유로 인해 상당수의 경찰 관등이 여러 직업성 질환에 노출되고 있다. 설문조사 분석결과, 현재 사용되고 있는 휴대용 장비 중 무전기, 경찰 혁대, 경찰단화, 정모, 근무복, 우의, 신호봉 등 7가지 조사대상 장비 모두가 사용이 불편한 것으로 나타났고, 이 러한 불편함으로 인하여 사용자의 대부분이 신체적 불편함을 경험한 것으로 조사되었으며, 이외에도 발바닥, 머리, 다리 및 무릎 등의 부위가 불편한 것으로 나타났다. 또한 임무수행시 현재 사용되고 있는 휴대용장비가 기동성에 장애를 주며, 근무의욕 및 사기에도 크게 영향을 주는 것으로 나타났다.

• Journal of Advanced Navigation Technology
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• v.27 no.4
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• pp.473-480
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• 2023

This study evaluated a novel method of defining the automatic flight path of unmanned aerial vehicles (UAVs) for search and rescue missions in a VR environment. The developed VR content reserves miniature digital twins of a building in the fire and a steep mountain terrain site. The users drow the UAV's scanning path using hand gestures on the surface of digital twins, and then the UAV make an automatic flight along the defined path. According to human-in-the-loop simulation tests comparing the novel method with a conventional manual flight task with 19 participants, the novel method did not improve the mission performance but participants felt a lower mental workload. The designer may need to consider the automation support on the vulnerable points of the SAR mission environment while maintaining experts' mapping capability.

• The Journal of Korean Institute of Communications and Information Sciences
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• v.42 no.1
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• pp.108-120
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• 2017

To this end, the ROK military is developing a Korean Tactical Data Link (Link-K) in two stages: Basic and Completion types. Currently, the basic type of the Link-K has a limitations for supporting Mission Group(MG)s, such as to share unnecessary information and inefficient routing, because all RICCs simply broadcasts the same information in the basic type of the Link-K. In this paper, we propose a Zone-based Wireless Link-K network structure and a routing algorithm. To improve the effectiveness of the proposed routing algorithm, we have studied a filtering method that adjusts the message data according to the priority of the message and a method of controlling the load of the network. In order to evaluate the performance of the proposed scheme, it is proved that it is effective to support the mission task group compared with the existing wireless Link-K routing algorithm according to the operational scenario situation.