TRANSPORT · TRANSPORT|land transport|land transport
- inse deilte 3 Reference Faomhadh an téarma seo mar chuid de Thionscadal Lex
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- delta-three hinge
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- Definition the acute angle between the normal to the blade-span axis in plan view and the flapping-hinge axis,such that the blade lift is reduced with upward flapping of the blade Reference Multilingual Aeronautical Dictionary(AGARD,1980)