When a helicopter is in hover, what tendency does it have due to tail rotor thrust?

When a helicopter is in a hover, the tendency created by tail rotor thrust is known as translating tendency. This refers to the natural desire of the helicopter to move laterally due to the effects of the tail rotor. When the tail rotor generates thrust to counteract the torque produced by the main rotor, it pushes the tail of the helicopter to one side. This force can create a lateral drift, which is particularly pronounced during hovering.

The design and configuration of the helicopter determine the specific direction of this drift. However, the concept of translating tendency is more about the overall behavior of the helicopter in response to tail rotor thrust during a hover rather than indicating a specific left or right movement. This means that pilots must be aware of this tendency and use proper control inputs to maintain a stable hover and counteract any unwanted lateral movement.

Understanding translating tendency is crucial for helicopter pilots as it directly influences flying behavior and the need for precise adjustments during hover maneuvers. Additionally, this awareness helps enhance pilot safety by ensuring that they can anticipate and correct for these drift tendencies effectively.