Where are taxi lights installed on the aircraft?

Taxi lights are specifically installed on the leading edge of each wing to facilitate visibility during taxiing operations. Their placement allows for enhanced illumination of the area in front of the aircraft while on the ground, particularly in low-light conditions. This ensures that pilots can better navigate the taxiway and runway, reducing the risk of runway incursions or incidents during taxi operations.

The leading edge location is effective because it provides an optimal angle to light up the taxiway and enhance visibility of any potential ground obstacles or other aircraft nearby. The design and positioning of the aircraft's lighting system reflect safety considerations, ensuring that adequate illumination is maintained while also minimizing glare for the pilot and ground personnel.

In contrast, other options would not serve the same purpose as effectively. For example, the tail is too far from the ground surface to be of practical use for illuminating taxiways, while the nose gear might not provide adequate spread of light due to its lower position. Installing taxi lights on the underside of the fuselage may also limit their effectiveness, as they would not provide a clear view of the taxiway ahead. Thus, the leading edge of each wing remains the most logical and effective location for taxi lights.