WORKING MACHINE

A working machine having a body supported on a ground engaging structure and a working arm mounted to the body so as capable of performing working operations. The working machine having a drive arrangement to propel the working machine including a prime mover and a hydrostatic transmission including at least one hydraulic pump driven by the prime mover, and at least one motor driven by hydraulic fluid. The working machine also having a hand throttle for selectively setting the power output of the prime mover, a foot throttle for dynamically adjusting the power output of the prime mover in a first mode of operation, wherein the transmission is configured to operate in a second mode of operation when a predetermined criterion is met, and in the second mode the foot throttle directly controls the speed of movement of the ground engaging structure.