Estimating vertical drag on helicopter fuselage during hovering by Wahab, A. A., Ismail, M. Hafiz

“…This research aims at prediction of aerodynamic drag on a conventional helicopter fuselage, EC-120. The drag has been evaluated using theoretical method which is aircraft elements method [1] and numerical method which is using commercial software Fluent 6.2 [2]. …”
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Sandwich Structure Based On Corrugated-Core: A Review by N. Z. M., Zaid, M. R. M., Rejab, N. A. N., Mohamed

“…Sandwich structures are commonly based on polymeric foam and honeycomb core material, for use in lightweight applications such as fuselage in aero plane, hull in marine construction and others. …”
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