DRIVING IMPRESSION: The last time we studied the Challenger RoGator in any detail was as part of our self-propelled group sprayer test in 2012 (09/2012 and 10/2012). Since then there have been a number of changes, now including this introduction of the fourth generation ‘D’ series
Up until now, Challenger has been using the MT900 articulated tractor cab on its RG self-propelled sprayer. A problem? Sort of … because while a dash is fine on a tractor, it’s less than ideal on a sprayer. And that’s why changes have been made. The new cab may look like it has been pinched off the Fendt Katana forager, yet it’s actually a new development from the other side of the Pond at AGCO’s Hesston plant in the US.
It’s more spacious than the Katana cab and even boasts a ‘Harley bar’ on which the operator can rest his or her feet. The view is panoramic, not only through the front windscreen but also through the vast back glass, which provides unrestricted sightlines out to the sprayer and boom extremities.
Another brand new item is the armrest, which is identical to the Katana’s, including the joystick and terminal. Our test machine made do with the terminal with the rimmed screen, although full production models will gain the rimless screen, as discussed in our 04/2015 tractor test of the Fendt 828, along with its glass screen surface complete with LED backlighting. Another thumbs-up goes to the joystick. It’s well laid out with two cross switches that control loads of functions. Labelling is clear, too.
For now there’s no headland management, though this is something the engineers at Grubbenvorst in the Netherlands are working on. This will automate a number of functions such as switching from two-wheel to four-wheel steer — all controlled via GPS.

