Browse > Article
http://dx.doi.org/10.9766/KIMST.2014.17.3.304

A Study on the Korea Weather Environment for Icing Airworthiness of Military Helicopter  

Hur, Jangwook (Department of Intelligent Mechanical Engineering, National Kumoh Institute of Technology)
Shin, Baekcheon (National Kumoh Institute of Technology)
Publication Information
Journal of the Korea Institute of Military Science and Technology / v.17, no.3, 2014 , pp. 304-310 More about this Journal
Abstract
Based on atmosphere weather data by balloon in Osan and Gwangju area, if icing condition occurs in weather environment of altitude range where helicopter is operated was analyzed in quantitative way. Yearly icing occurrence frequency for daytime during recent three years was average 102 days in Osan, average 91 days in Gwangju. Icing weather environment to highly affect operation of helicopter varies a little according to analysis methods but icing intensity at MDT level was calculated in all the methods, and 14.5~38 times was suggested in Osan; 2.5~30 times in Gwangju. Icing at MDT level was calculated in common in all the analysis methods through wide periods such as Jan., Feb., Mar., and Nov. in Osan. In Gwangju, icing at MDT level was suggested focusing on Jan. only. Therefore, military helicopter developed in Korea is required to strive obtaining certificate of airworthiness about icing condition at MDT level for implementation of perfect operational mission and safe operation.
Keywords
Liquid Water Content; Dew Point Depression; Lapse Rate; Icing Intensity; Icing Frequency; Icing Airworthiness; Depletion Factor;
Citations & Related Records
Times Cited By KSCI : 4  (Citation Analysis)
연도 인용수 순위
1 "Design & Airworthiness Requirements for Service Aircraft," Defense Standard 00-970, Vol. 2, Leaflet 711/2, pp. 1-11, 1984.
2 "Aircraft Natural/Artificial Icing," TOP 7-3-537, US Army Aviation Technical Test Center, pp. 2-35, 2009.
3 Bernstein, B. C., "Icing Frequencies at select Sites in South Korea," Leading Edge Atmospherics, LLC, pp. 1-27, 2013.
4 "KUH System Development Specification," DAPA, 2012.
5 Lee S. J. and Kim Y. C., "A Study on the Occurrence and Prediction of Aircraft Icing over South Korea," Journal of the Korean Meteorological Society, Vol. 41, No. 4, pp. 615-624, 2005.   과학기술학회마을
6 http://www.hansfamily.kr/1228
7 Lee S. J. and Kim Y. C., "A Numerical Forecast and Verification of the Aircraft Turbulence Observed over South Korea," Journal of the Korean Meteorological Society, Vol. 38, No. 5, pp. 493-507, 2002.   과학기술학회마을
8 Kim Y. C., "A Verification of threshold of the Aircraft turbulence index and Icing Index Using PIREPs and KWRF on Korean Peninsula," The Korean Society for Aviation and Aeronautics, Vol. 19, No. 3, pp. 54-60, 2011.   과학기술학회마을
9 Kim Y. C., "The Analysis of the Characteristics of Korean Peninsula aircraft Icing Index Using KWRF," The Korean Society for Aviation and Aeronautics, Vol. 18, No. 3, pp. 42-54, 2010.   과학기술학회마을
10 Mark R. M., Kirth L. P. and Charles H. E., "Meteorological Techniques-Aircraft Icing," Air Force Weather Agency, AFWA/TN-98/002 Revised, 2006.