tail-rotor blade

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• E-Flite Blade CX and CX2 — The E Flite Blade CX is an entry level, ready to fly electric micro R/C helicopter designed and distributed by E Flite, a division of Horizon Hobby of Champaign, Illinois, USA.Blade CXThis model was introduced in late 2005 as an easier to fly… …   Wikipedia

• cross-beam rotor — Usually the tail rotor of a helicopter comprising a two blade assembly, superimposed on each other. The angle at which rotors are superimposed is normally 90°, but this superimposition can be at other angles as well …   Aviation dictionary

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• Helicopter noise reduction — is a topic of research into designing helicopters which can be operated more quietly, reducing the public relations problems with night flying or expanding an airport. In addition, it is useful for military applications in which stealth is… …   Wikipedia