Big Truck

This is Robert's truck.
He carts gold ore from various mine sites to the mill to be processed. Each load is 170 tonnes. They have to go up a Rom at 10km an hour to unload.
If you don't get your timing right the weight of the trailers will pull you back down the Rom.
The trailers are side tippers that is you tip the trailer on it's side to empty it not tip it out the back