What is the importance of the tail rotor in the TH-73A?

• A. Provides forward thrust
• B. Controls anti-torque and stability
• C. Generates electrical power
• D. Acts as a stabilizing fin

Answer: (B)

The tail rotor in the TH-73A plays a crucial role in controlling anti-torque and stability. In helicopters, the main rotor generates lift and thrust, which can create a significant torque effect that would cause the helicopter's fuselage to spin in the opposite direction. The tail rotor counteracts this torque by producing thrust in the opposite direction, allowing the pilot to maintain directional control of the helicopter.

Additionally, the tail rotor contributes to the overall stability of the helicopter during flight. By adjusting the angle of the tail rotor blades, the pilot can influence the yaw of the aircraft, enabling precise and controlled turns. This functionality is essential for safe maneuvering, especially during takeoff, landing, and while flying in confined areas.

The other options, such as providing forward thrust, generating electrical power, or acting as a stabilizing fin, do not accurately represent the primary function of the tail rotor. The tail rotor is not responsible for generating forward thrust, as that is primarily the job of the main rotor. It also does not generate electrical power; that is handled by the helicopter's electrical systems. While the tail rotor does contribute to overall stability, it does so in the context of anti-torque control, rather than acting solely as a stabilizing