What signals do ground personnel use to guide a helicopter during approach?

• A. Verbal commands from the cockpit
• B. Radio handsets used by ground crew
• C. Standard hand and arm signals to indicate stop, move, and clearance as directed by the crew
• D. Flashlight signals

Answer: (C)

Ground personnel guide a helicopter during approach with standardized hand and arm signals. These visual signals are designed to be clear and immediate in the rotor wash and from a distance, so pilots can understand exact instructions even in loud environments. The signals cover basic movements like stopping, moving to a position, or proceeding with the approach, and they are given as directions by the pilot to ensure safety and coordination between the crew on the ground and the aircraft in the air. While radios or flashlight signals can supplement communication in certain conditions (night operations or when visibility is limited), the primary method that ensures reliable guidance during approach is the established hand and arm signals.