Australian wheat and barley harvest 2015 Grass Patch, Esperance area. Machines drive on GreenStar GPS systems for precicion and effeciency and uses Machine Sync for unloading onto the chaser bin belt. Machines are John Deere S680 & S680 track 40ft. front with custom made 3 metre spacings for the tracks. John Deere 8130 with an Oztec long-reach tramliner 30t chaser bin