Final answer:
To move the helicopter's nose left or right, a pilot uses the cyclic control for cyclic pitch control and the tail rotor for anti-torque control, which together allow for precise steering.
Step-by-step explanation:
When the pilot wants the helicopter's nose to move left or right, they use the cyclic control, which tilts the swashplate and changes the angle of attack of the rotor blades as they rotate. This process is called cyclic pitch control. By increasing the angle of attack, the rotor blade generates more lift on one side, causing the helicopter to tilt and move in the opposite direction. This motion allows the pilot to steer the helicopter left or right.
The tail rotor also plays a crucial role in this maneuver by countering the reactive torque generated by the main rotor, ensuring the helicopter remains stable while the nose is moving. This is referred to as anti-torque control. Pilots must coordinate the use of both cyclic and tail rotor controls to achieve precise directional movement.