Demonstrator Unit - surrounds rotary mower, 37hp 3 cylinder diesel engine, 3x 27" rotary mower units, left and right unit can independently be moved 10" outward to enable the power unit to operate away from soft edges like bunkers or flower boarders, Passcode-protected TechControl display enables quickly setting or changing mowing speed, turning speed, or transport speed to limit variations in performance by different operators. The eHydro� traction pump and wheel motors in the A-model take performance, traction, and operation to the next level.