tail rotor


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tail rotor

n
(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
ThesaurusAntonymsRelated WordsSynonymsLegend:
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"
References in periodicals archive ?
Both the Main and Tail Rotor Actuators incorporate the latest features including the latest developments in servo-valves, solenoid valves, spool valves and detection devices including anti-jamming on the spool valve.
This almost severed the tail rotor and ended the flight of this chopper," it said.
The chopper may have lost balance when the tail rotor hit a tree and sucked in branches while it was moving to the left in order to lower the rescuers to a target spot, it said.
The pilot estimated that eight seconds elapsed from the time of the tail rotor malfunction to the time the aircraft landed.
This unit manages the distribution of the electricity to the motors driving the main rotor and the tail rotor, to and from the batteries as well as to the other systems on the helicopter.
The stylish craft's aerodynamic lines and enclosed tail rotor for added manoeuvrability look the business.
The part has been found to separate, which could affect the drive shaft, stop the tail rotor and leave pilots unable to steer.
Investigators discovered a rag had wrapped itself around a shaft controlling the helicopter's tail rotor - snapping the vital link and dooming the aircraft.
Three of the accidents occurred on the ground when people walked into the rotating main or tail rotor.
The helicopter PH-200PJ has no tail rotor and therefore no tail rotor gear box, tail rotor drive or tail boom.
The firm has been active in the area for some time, having developed the Fenestron ducted tail rotor and active noise controls for the main rotors.
Because of the X-rotation system, a tail rotor is not necessary, reducing the size of the helicopter but making it only able to fly indoors where there is no wind.