• Title/Summary/Keyword: 공중급유기

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A Study on the Optimal Number of Air Tanker for Patrol Operations (초계작전을 위한 공중급유기 적정 대수 산정 연구)

  • Park, Sehoon;Chung, Ui-Chang;Chung, Je-Hoon
    • Journal of the Korea Society for Simulation
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    • v.28 no.1
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    • pp.57-65
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    • 2019
  • Air refueling is expected to increase the efficiency of the air force operations. This follows from the introduction of air refueling aircraft, which should to increase operational time by increasing the range and duration of fighter jets. Despite the effectiveness of the air refueling air crafts, the astronomical costs of adapting the air tankers call for careful discussions on whether to acquire any air craft and if so, how many. However there is no academic study on the subject to our knowledge. Thus, we use the ABM(Agent Based Modeling) technique to calculate the optimal number of air tankers during patrol operation. We have enhanced the reliability of the simulation by entering the specifications of the current aircraft operated by the Korean Air Force. As an optimization tool for determining the optimal number of counts, we use OptQuest built into the simulation tools and show that the optimal number of air tanker is 4.

A Research on Aerial Refueling Type and Flight Testing of Boom-Receptacle Systems for a Fixed-wing Aircraft (고정익 항공기 공중급유 유형 및 Boom-Receptacle 시스템 비행시험 평가 방안 연구)

  • Kim, Dae-wook;Kim, Chan-jo
    • Journal of Aerospace System Engineering
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    • v.16 no.1
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    • pp.70-80
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    • 2022
  • An aerial refueling provides for extension of operational time and range for aircraft and enhances mission effectiveness, hence it application by most military aircrafts. The receiver aircraft should have the aerial refueling clearance that is established by performing technical and operational compatibility assessments to certify it for aerial refueling with a specific tanker model. The compatibility assessment includes aerial refueling handling qualities, functional, fuel, lighting system testing and it is finally verified through flight testing. However, since aerial refueling compatibility assessments have never been performed in Korea, there is no experience to determine the test requirements and the scope and size of the test program for a new development aircraft. This paper therefore introduces the common techniques of aerial refueling and aerial refueling flight test methods to understand the aerial refueling FCS (Flight Control System), OFP (operational flight program) and system validation, and aerial refueling envelope clearance of a fixed wing aircraft for a boom and receptacle refueling system that is being introduced into Korea Air Force.

Adaptive Control Scheme of Air Tanker Ground Waiting Time Based on a Multi-Server Queuing Model (다중서버 큐잉 모델을 이용한 공중급유기 지상 대기시간 적응적 제어 기법)

  • Sohn, Yong-Sik;Chung, Jong-Moon
    • Journal of Internet Computing and Services
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    • v.23 no.5
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    • pp.33-46
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    • 2022
  • This paper, in order to minimize the ground waiting time of an Air tanker, the queuing theory, that is, a queue that calculates the waiting time under single-server and multi-server situations, was used in the study. Since the national budget and resources are limited, the unlimited increase of the logistics support service team is limited. Therefore, the number of logistic support service teams that can adaptively control the ground waiting time according to the wartime preparation stage or war environment was calculated. The results of this study provide a stipulated standard for calculating the optimal number of air tanker logistic support service teams of the Air Force, providing a basis for the logistical commander to assign logistic support service teams to each stage from peacetime to wartime.

Relative Navigation for Autonomous Aerial Refueling Using Infra-red based Vision Systems (자동 공중급유를 위한 적외선 영상기반 상대 항법)

  • Yoon, Hyungchul;Yang, Youyoung;Leeghim, Henzeh
    • Journal of the Korean Society for Aeronautical & Space Sciences
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    • v.46 no.7
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    • pp.557-566
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    • 2018
  • In this paper, a vision-based relative navigation system is addressed for autonomous aerial refueling. In the air-to-air refueling, it is assumed that the tanker has the drogue, and the receiver has the probe. To obtain the relative information from the drogue, a vision-based imaging technology by infra-red camera is applied. In this process, the relative information is obtained by using Gaussian Least Squares Differential Correction (GLSDC), and Levenberg-Marquadt(LM), where the drouge geometric information calculated through image processing is used. These two approaches proposed in this paper are analyzed through numerical simulations.

Derivation and Verification of the Relative Dynamics Equations for Aerial Refueling (공중재급유를 위한 상대운동방정식 유도 및 검증)

  • Jang, Jieun;Lee, Sangjong;Ryu, Hyuk
    • Journal of the Korean Society for Aviation and Aeronautics
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    • v.21 no.4
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    • pp.1-10
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    • 2013
  • This paper addresses the derivation of 6-DOF equation of Tanker and Receiver's aircraft for aerial refueling. The new set of nonlinear equations are derived in terms of the relative translational and rotational motion of receiver aircraft respect to the tanker aircraft body frame. Further the wind effect terms due to the tanker's turbulence are included. The derivation of absolute dynamic equation for tanker aircraft written in the inertial frame is calculated from the relative dynamics equations of receiver. The derived relative and absolute equations are implemented the simulation in the same flight conditions to verify the relative motion and compare the trim results by using the MATLAB/SIMULINK program.

Boeing 717 개발 동향 - 보잉사는 과연 Regional Jet 시장으로 진출할까?

  • Jo, Ok Chan
    • Aerospace Industry
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    • v.60
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    • pp.18-23
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    • 1998
  • 1998년 1월초 보잉사는 옛 맥도널더글라스사에서 개발해온 소형여객기 MD-95-30을 새로이 보잉 717-200으로 개칭하고 개발·생산을 계속한다고 발표했다. 동 717 모델의 명칭은 40여년전인 1956년 8월 31일에 처녀 비행한 미공군의 KC-135A Stratotanker 공중급유기에 주어진 이름으로 MD-95는 717의 기종명을 가진 두번째 항공기가 되었다.

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