How is the tail rotor controlled?

The pitch of the tail rotor blades is adjustable by the pilot via the anti-torque pedals, which also provide directional control by allowing the pilot to rotate the helicopter around its vertical axis. About 10\% of the engine power goes to the tail rotor.

What is the RPM of helicopter rotor?

Depending on the model and size of the helicopter, a helicopter’s blades, which are between 40-60ft long, spin from about 225 RPM to 500 RPM. Speed is determined by the power of the rotor and the length of the blade.

What is the collective control in a helicopter?

The collective pitch control (or simply “collective” or “thrust lever”) is located on the left side of the pilot’s seat and is operated with the left hand. The collective is used to make changes to the pitch angle of the main rotor blades and does this simultaneously, or collectively, as the name implies.

How do helicopter rotors work?

The tail rotor is geared to the main engine of the helicopter, which also powers the main rotor. As it’s linked to the main engine, the tail rotor usually spins at a speed that is proportional to the speed of the main rotor. In most helicopters, the ratio between the main rotor and tail rotor resides somewhere between 3:1 to 6:1.

What controls the angle of attack on a helicopter’s tail rotor?

The angle of attack of the tail rotor is controlled by the pilot’s anti-torque pedals (they’re not “rudder pedals” in a helicopter). The pedals are typically connected to the pitch change mechanism by either push pull tubes, or by cables.

What is a tail rotor and how does it work?

As we have established so far, the tail rotor is a form of anti-torque system, as its purpose is to counteract the torque produced by the main rotor. However, while normal tail rotors are the most common solution, there are other ones as well. Let’s look at the two most common types, together with their advantages and disadvantages!

How does autorotation work on a helicopter?

During autorotation, the helicopter is no longer subjected to torque from the main rotor. This means that stable flight is attainable, even without the tail rotor. The pilot then makes sure to safely glide to a suitable landing site.