What is the difference between taxiing with the tiller and taxiing with the rudder?

The distinction between the tiller and the rudder during taxiing is primarily characterized by the range of motion they provide for steering the aircraft. Using the tiller for taxiing allows for a significant amount of steering input, with an eight-degree range for the rudder and up to eighty degrees for the tiller. This wide range of motion offered by the tiller enables pilots to execute sharper turns and maneuver more effectively, particularly in tight spaces on the tarmac where precision steering is crucial.

While the rudder aids in directional control and coordination during flight, its limited range makes it less effective for ground maneuvers at slow speeds. The tiller, on the other hand, is designed specifically for ground operations, allowing for precise control in various scenarios, such as maneuvering around corners or making slight adjustments to the aircraft's path.

This understanding underpins why the correct answer emphasizes the distinct operational ranges between the two controls, focusing on the capabilities that the tiller provides over the rudder during taxiing.