Which portion of the aircraft should you always avoid when around?

The main rotor blade of an aircraft is a critical component and poses a significant safety risk. When the rotor blade is operational, it spins at high speeds, creating a danger zone around the aircraft. The high rotational velocity, combined with the long reach of the blades, can lead to serious injuries or fatalities if someone inadvertently enters this zone.

Additionally, the main rotor blades can be difficult to see due to their rapid movement, and they often have a wide turning radius. Personnel are trained to maintain a safe distance from this area when the helicopter is in operation to prevent accidents. This caution is particularly emphasized during pre-flight checks, landings, and takeoffs when the rotor blades are active. Understanding this inherent risk associated with rotor blades is essential for personnel operating in proximity to helicopters and ensures their safety.