• 제목/요약/키워드: Spar Kit

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F-5E/F 15% SPAR KIT 용 폴리우레탄 캐스팅 윙 페어링 소재 및 공정개발 (A Study on materials and manufacturing process of polyurethan fairing parts for F-5E/F 15% spar kit)

  • 김국진;문영진;한중원;김영생;곽준영;최재성
    • 한국복합재료학회:학술대회논문집
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    • 한국복합재료학회 2002년도 추계학술발표대회 논문집
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    • pp.193-197
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    • 2002
  • Polyurethane casting wing fairings included in F-5E/F 15% spar kit are to be installed on aircraft wing surfaces and used for compensating the changes of the aerodynamic configuration by the leading edge extension fairings. These fairing are mandatory items in repairing wing areas and was imported from foreign supplier with long term delivery and high cost. Accordingly, local manufacturing is necessary to get rid of above disadvantages such as long term delivery and high cost. Basic properties test of specimen to be developed and part's requirements after localization was taken and its values were similar or higher when comparing with the original's even in low temp test at -55C. Casting mold process was used to manufacture the polyurethane fairings and its demensional stability & physical condition was proper and met to the related specification and drawing's requirements

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