Where is the center of gravity typically located in a helicopter?

The center of gravity in a helicopter is typically located a short distance fore and aft of the main rotor mast. This positioning is critical for the stability and control of the helicopter during flight. The location of the center of gravity impacts the balance of the aircraft, especially given the need for the rotor system to maintain lift and the control surfaces to manage the helicopter's pitch, yaw, and roll dynamics.

Having the center of gravity near the main rotor mast allows for optimal performance and maneuverability during different phases of flight. It ensures that the helicopter can maintain stability and respond effectively to pilot inputs. A location too far from the mast would result in difficulties in controlling the helicopter, potentially leading to an increased risk of an uncontrolled descent or difficulty in executing maneuvers.

The other choices represent areas that do not accurately reflect the typical center of gravity in a helicopter. The tail rotor, while essential for counteracting torque, does not serve as a balance point; the skids are points of contact with the ground and do not function as a center of mass; and being directly above the main rotor doesn't account for the weight distribution needed for stability in flight.