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http://dx.doi.org/10.12985/ksaa.2017.25.2.012

Structural safety factor for small unmanned aircraft  

Kim, Sung-Joon (한국항공우주연구원)
Lee, Seung-gyu (한국항공우주연구원)
Kim, Tae-Uk (한국항공우주연구원)
Publication Information
Journal of the Korean Society for Aviation and Aeronautics / v.25, no.2, 2017 , pp. 12-17 More about this Journal
Abstract
Manned aircraft structural design is based on structural safety factor of 1.5, and this safety factor is equivalent to a probability of failure of between 10-2 and 10-3. The target failure probability of FARs is between 10-6 and 10-9 per flight according to aircraft type. NATO released STANAG 4703 to established the airworthiness requirements for small UAV which is less than 150kg. STANAG 4703 requires the Target Level of Safety according to MTOW. The requirements of failure probability for small UAV is between 10-4 and 10-5. In this paper, requirements of airworthiness certification for small UAV were investigated and the relationship of safety factors to the probability of structural failure is analyzed to reduce measure of safety factor and structural weight of unmanned aircraft.
Keywords
Factor of safety; Unmanned Aerial Vehicle(UAV); Probability of structural failure; Target Level of Safety;
Citations & Related Records
Times Cited By KSCI : 1  (Citation Analysis)
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