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 ?
The cause of the deviation in the tail rotor blades is still being investigated by the Air Force in collaboration with the Netherlands Air and Space Center (NLR) and manufacturer Boeing.
"There is evidence that a pair of over-trousers that had been packed in the cabin came out of the helicopter and became entangled in the tail rotor," Chief Commissioner Jane Meares said, (https://www.straitstimes.com/asia/australianz/trousers-caused-fatal-new-zealand-chopper-crash-probe-shows) Straits Times r eported. "Paint marks on the over-trousers matched the color and profile of the tail rotor blades, and marks on a tail rotor blade match a zip and dome connector on the over-trousers."
The defects led to the tail rotor blades' KILLED Pilots Izabela and Eric ' pitch being changed "till they reached the physical limit", said the Air Accidents Investigation Branch.
The report revealed that a system linking the pilot's pedals with the tail rotor failed.
Snowdonia National Park warden Aled Taylor, who saw the crash, said: "The tail rotor of the helicopter stopped and the machine went out of control.
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.
Due to the effect of the duct, the slipstream pattern and aerodynamic characteristic of ducted tail rotor are different from the conventional open-type rotor.
A few minutes later, the crew was performing tail rotor backup checks by moving the servo switch to the "backup" position, which caused the H-60 to lose control of the tail rotor.
Airbus Helicopters presented its new clean-sheet medium-class rotorcraft design, the H160, which features the biggest-ever shrouded tail rotor and an all-new "biplane stabilizer" design that the company says will enhance stability.
The chopper was on a test flight after regular checks at the GSDF Kasuminome air field, said local report, adding the aircraft' s main rotor was bent and its tail rotor fell off after the crash landing.
The following parts all have seals: the pitch, roll and yaw piston; the primary servo pistons in the hydraulic deck; the main rotor damper pistons; the main landing gear struts; the tail landing gear struts; the tail rotor servo piston and the stabilator actuator.