What does proportional speed control allow?

Proportional speed control enables the operator to have precise control over the movement of the equipment based on the position of the control input. This means that the further the operator moves the control, the faster the equipment will move. This feature is particularly useful in applications where fine adjustments are necessary, allowing for smooth and responsive operation. It enhances the operator's ability to maneuver the equipment effectively, making it suited for tasks requiring varying speeds for different stages of operation.

In this context, other choices do not align with the definition of proportional speed control. For instance, maximum speed when fully engaged refers to a fixed operational speed regardless of input, while automatic adjustment based on load indicates a system that responds to different weights or forces but not necessarily tied to control input. Lastly, the option that suggests only slow speed unless overridden does not fit with the concept of proportional speed, which fundamentally involves variable control based on user input rather than limiting speed.