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tail rotor
(redirected from tail rotors)

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tail rotor
n
(Engineering / Aeronautics) a small propeller fitted to the rear of a helicopter to counteract the torque reaction of the main rotor and thus prevent the body of the helicopter from rotating in an opposite direction
ThesaurusLegend:  Synonyms Related Words Antonyms
Noun1.tail rotor - rotor consisting of a rotating airfoil on the tail of a single-rotor helicoptertail rotor - rotor consisting of a rotating airfoil on the tail of a single-rotor helicopter; keeps the helicopter from spinning in the direction opposite to the rotation of the main rotor
rotor - rotating mechanism consisting of an assembly of rotating airfoils; "there are horizontal rotors on a helicopter or compressor rotors in a jet engine"


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The ultra-light helicopter weighs less than 300 lbs and includes counter-rotating blades to offset the gyroscopic effect normally countered by tail rotors.
He noted that the loss of the tail rotors tends to suddenly pitch the helicopter forward.
 
 
 
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