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There are four main types of tail rotor or anti-torque systems on today’s helicopters. The most common is the multi-bladed rotor, the Fenestron from Airbus, the NOTAR from MD helicopters, then the helicopters with no tail rotor, like the chinook. Each counteracts the main rotor torque.
The tail rotor is a smaller rotor mounted vertically or near-vertically at the tail of a traditional single-rotor helicopter, where it rotates to generate a propeller-like horizontal thrust in the same direction as the main rotor's rotation.
Oct 29, 2020 · Tail rotors are either built onto the tail in a traditional design, or they are built into the tail in a fan-type configuration, called fan-tail or fenestron design.
To explain what a helicopters tail rotor does, this video also covers the different types of anti-torque systems - traditional helicopter tail rotor, ducted ...
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Apr 20, 2022 · Here's how it works: A large fan at the rear of the fuselage blows spent air from the main rotor down the tail boom. Slots along the side of the tail boom and at the end of the boom allow this air to escape.
Tail Rotor¶ Quite simply, the reaction from rotating the main rotor (CCW, say) has the tendency to spin the rest of the helicopter in the opposite direction (CW). In forward flight, the vertical tail surface can be succesfully used to generate enough force (or moment about the helicopter CG) so as to counteract this (CW) moment.
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Jan 11, 2023 · Tail rotor. Apart from adding a second large rotor, another way to counteract the torque from the main rotor is by using a small, sideways-pointing propeller called a tail rotor, powered by a driveshaft from the engine that runs through the tail end of the craft.
