23rd Congress of International Council of the Aeronautical Sciences, 8-13 September, 2002, Toronto, Canada
Paper ICAS 2002-R70

DESIGN ISSUES RELATING TO ULTRALIGHT HELICOPTERS WITH LARGE COMPOUND ROTORS OPERATING IN GROUND EFFECT

Z. M. Zain
Mara University of Technology, Malaisia

Keywords: helicoper design, ultralight, large rotors, ground effect

Ultralight helicopters with large compound rotors like YURI 1 of Emeritus Professor Akira Naito of Nihon University offers great possibility for agriculture, sport and military applications.A dedicated test bed is needed to study the flow around rotating blades, the change of airfoil caracteristics, flow conditions in test space, structural problems and Dynamic stability especially when operating in ground effect.

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