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Aerodynamic Design of the Solar-Powered High Altitude Long Endurance (HALE) Unmanned Aerial Vehicle (UAV)

  • Hwang, Seung-Jae (Aerodynamic Division, Korea Aerospace Research Institute) ;
  • Kim, Sang-Gon (Aerodynamic Division, Korea Aerospace Research Institute) ;
  • Kim, Cheol-Won (Aerodynamic Division, Korea Aerospace Research Institute) ;
  • Lee, Yung-Gyo (Aerodynamic Division, Korea Aerospace Research Institute)
  • 투고 : 2015.02.06
  • 심사 : 2016.01.14
  • 발행 : 2016.03.30

초록

Korea Aerospace Research Institute (KARI) is developing an electric-driven HALE UAV in order to secure system and operational technologies since 2010. Based on the flight tests and design experiences of the previously developed electric-driven UAVs, KARI has designed EAV-3, a solar-powered HALE UAV. EAV-3 weighs 53kg, the structure weight is 22kg, and features a flexible wing of 19.5m in span with the aspect ratio of 17.4. Designing the main wing and empennage of the EAV-3 the amount of the bending due to the flexible wing, 404mm at 1-G flight condition based on T-800 composite material, and side wind effects due to low cruise speed, $V_{cr}=6m/sec$, are carefully considered. Also, unlike the general aircraft there is no center of gravity shift during the flight because of the EAV-3 is the solar-electric driven UAV. Thus, static margin cuts down to 28.4% and center of gravity moves back to 31% of the Mean Aerodynamic Chord (MAC) comparing with the previously designed the EAV-2 and EAV-2H/2H+ to upgrade the flight performance of the EAV-3.

키워드

과제정보

연구 과제번호 : 주요사업

연구 과제 주관 기관 : 한국항공우주연구원

참고문헌

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피인용 문헌

  1. Procedure for Determining Operation Limits of High-Altitude Long-Endurance Aircraft Under Icing Conditions vol.55, pp.1, 2018, https://doi.org/10.2514/1.C034490
  2. Design and Performance Evaluation of Propeller for Solar-Powered High-Altitude Long-Endurance Unmanned Aerial Vehicle vol.2018, pp.1687-5974, 2018, https://doi.org/10.1155/2018/5782017