What is the term for the distance from the center of the front axle to the center of the rear axle of the stacker?

The term for the distance from the center of the front axle to the center of the rear axle of a stacker is known as the wheelbase. This measurement is crucial as it affects the stability, handling, and maneuverability of the equipment. A longer wheelbase typically provides more stability when carrying heavy loads, whereas a shorter wheelbase can enhance maneuverability in tight spaces. Understanding wheelbase is important for operators to effectively navigate and control the stacker, particularly in environments with limited space.

Other terms in the options, such as axle length, chassis length, and turn radius, are distinct from wheelbase. Axle length refers specifically to the distance between the two wheels on the same axle, chassis length pertains to the overall length of the vehicle's frame, and turn radius indicates the smallest circular turn the vehicle can make. None of these terms directly describe the distance between the front and rear axles, which is why wheelbase is the most accurate answer in this context.